2013 RULES PAGE
You will need to scroll down the page to read your class rules. All class rules will be posted on this page in the following order:
Limited Modifieds
Street Stock
Hobby Stock
Pure Stock
RaceSaver Sprints
Printing Tips: If you would like to print rules, be sure you go to File, Print Preview, then Shrink to Fit. This will allow you to see what you are printing and to select certain pages if desired. You can also highlight the rules, right click, copy, then open a word document and paste the contents you just copied by right clicking and paste.
Limited Modifieds
Street Stock
Hobby Stock
Pure Stock
RaceSaver Sprints
Printing Tips: If you would like to print rules, be sure you go to File, Print Preview, then Shrink to Fit. This will allow you to see what you are printing and to select certain pages if desired. You can also highlight the rules, right click, copy, then open a word document and paste the contents you just copied by right clicking and paste.
2013 RACEceivers Mandatory
Attention Drivers:
All drivers will be required to wear a RACEceiver during Hot Laps, Heat and Feature Races. This will allow us to line up cars faster. It will also give us the opportunity to inform drivers as they race when a caution comes out and the where abouts of the stalled car or wreck. This will lend itself to less wrecks under caution. RACEceiver may be purchased at 360 Motorsports in Houston, Smiley's or Day Motorsports and various other locations.
All drivers will be required to wear a RACEceiver during Hot Laps, Heat and Feature Races. This will allow us to line up cars faster. It will also give us the opportunity to inform drivers as they race when a caution comes out and the where abouts of the stalled car or wreck. This will lend itself to less wrecks under caution. RACEceiver may be purchased at 360 Motorsports in Houston, Smiley's or Day Motorsports and various other locations.
Spec. Mufflers & Turn Downs Mandatory - See Class Rules
2013 LIMITED MODIFIED RULES
Includes Clarifications made through IMCA and Adopted by Gator Motorplex
SAFETY EQUIPMENT: Rules apply at all times car is on track. Snell-rated SA2000, SA2005 or SA2010 helmet required. Roll bar padding required in driver compartment (Fire retardant recommended). SFI-approved full fire suit required. Fire retardant gloves, shoes and neck brace (or head and neck restraint) required. Right and left seat head supports required if using head restraint system with no neck collar. Recommended: Fire retardant head sock and underwear; collapsible steering shaft. Driver-side window net required, minimum 16 inch by 20 inch ribbon or mesh style, Sprint car net allowed and must be mounted to roll cage so latch is at top front of window. Minimum three inch (two-inch with head restraint system) wide SFI-approved five point safety belt assembly required (Y-type shoulder harness not allowed), must be mounted securely to roll cage, recommended to be no more than two years old. Kill switch required within easy reach of driver and must be clearly marked 'OFF' and 'ON'.
FRAME: 1978-1987 OEM midsize GM metric full frame only. Minimum wheelbase 107-inches, maximum 109-inches, both sides. Frame must be full and complete, cannot be widened, narrowed, shortened, lengthened, or be cut, bent, or altered to change suspension brackets, except upper control arm brackets on front end. All frame bolt holes must remain in OEM location. Front frame horns may be removed in front of steering box. Front frame may be cut for radiator clearance. Frame may be notched for seat clearance. Transmission cross- member mounts may be removed, no further forward than frame welds. Rear of frame, behind upper shock mounts, may be replaced with round, square, or rectangular tubing. No part of frame can be lower than five inches from ground except front cross-member. No other frame alterations allowed. See drawing for OEM frame dimensions
ROLL CAGE: Must consist of continuous hoops, minimum 1.5 inch O.D. tubing, with a minimum wall thickness of.095 inch for main cage. Cages must be steel or chrome-moly. Main cage no further forward than rear of engine and no further back than front edge of rear tire. Four bars, two per side, may extend from main roll cage to main frame points in front of the upper control arms. These bars may have two additional braces per side to the main frame. Six bars may extend from the main cage to the rear. X-bracing is allowed. Driver's head must not protrude outside cage with helmet on. Roll cage must be securely supported and braced with minimum one cross bar in top halo. All bars forward of cage must be lower than hood.
DOOR BARS: Minimum three driver side door bars required, minimum 1.5 inch O.D. and .083 inch wall thickness, must be parallel to ground and perpendicular to driver, and welded to front and rear of roll cage. Minimum two passenger side door bars required, must have at least one cross door bar, horizontal or angled. Steel door plate, 18 gauge or .049- inch.
BODY: [Pay close attention to the measurements] (See diagram) No composite or plastic body panels allowed except roof rock guard and hood scoop. Body must be same width, front to rear, and parallel to OEM frame. Aluminum nose panel must be flat. Maximum 2.250 inch side fins allowed on aluminum nose. MD3 plastic nosepiece, part#020-410 allowed. All nose panels may be no wider, or lower than two inches outside of front frame horns and remain within 0.5 inch tolerance outside confines of front bumper. Plastic nosepiece must be mounted in an approved manner and can extend no further back than 6 inches from front of hood. Cooling holes allowed. Engine compartment must remain open (no side panels). Hood must be level or sloped down at front, enclosed and flush with interior deck at rear. No reverse hood rake allowed. No panel in front of right door to engine compartment. No inner panels. No car covers. Must have front and rear roof support posts. Driver and passenger side windows must have at least 12 inch opening (height and width). Full size, fiberglass or aluminum roof only (see diagram). No dished roofs allowed. Driver roof hatch allowed. Maximum 1.5 inch rolled down rock guard allowed on roof front. Maximum 4 inch roof sides allowed. Maximum 1 inch ridge down sides of roof. Maximum 1 inch rear roof stiffener (must face down). Window side panels must resemble all aspects of drawing and may not extend ahead of back of seat.
Rear spoiler (optional) may be minimum 1 inch or maximum 8 inches in material height and maximum 67 inches wide. Spoiler may have stiffener, must be 1 inch or more down from top. Maximum 3 spoiler braces allowed, must be mounted in line. Spoiler braces must resemble all aspects of drawing. Spoiler must be mounted within confines of spoiler braces. Spoiler may be aluminum or lexan. No fins, lips or wings allowed.
Scoring- Car number must be minimum four inches thick and 20 inches tall and clearly visible, on both sides, top and back of car, and front, if possible. Recommended: Avoid holographic or dark on dark colors for numbers. The best number is the top number outlined in white or black depending on car color.
DRIVER COMPARTMENT: Must have minimum three windshield bars in front of driver. Lexan or aluminum cowl panel in front of driver can be no wider than cockpit and no further back than steering wheel. Floor pan must be metal or aluminum and cover entire driver compartment. Aluminum high-back seat only, must be securely bolted, using minimum 0.375-inch bolts, to roll cage and support system. Bottom of seat can be no lower than bottom of frame rail. Driver must be sealed off from track, driveline, engine, fuel cell, cannisters and pumps. No oil coolers allowed in driver compartment. No devices that would enable driver adjustment to alter wheelbase or for weight jacking while car is in competition. No mirrors of any kind.
FRONT SUSPENSION: All components must be steel, unaltered OEM, in OEM location, and match frame. No jack bolts allowed. Adjustable spring buckets are allowed. Must use OEM upper and lower A-frames and mounts. OEM upper A-frame may be replaced using aftermarket upper A-frame (steel or aluminum cross shaft allowed), part(s) #91034394 L/R or #910-34393 R/L. Upper A-frame mounts may be modified and moved for caster and camber adjustment, but must remain OEM material. Lower A-frame mounts and bolt holes on frame must be in OEM location, mount may be notched for clearance. All A-frame bushings may be aftermarket, but no offset or bearing type. OEM or OEM replacement ball joints allowed, may be tacked in. Sway bars (optional) and brackets must remain OEM.
STEERING: All components must be steel, unaltered OEM, in OEM location and match frame. No grinding, lightening or welding on any steering parts. Spindle may be reamed and bolt on spindle savers are allowed. Steel steering shafts and knuckles only. Steering quickener (optional), steering wheel and quick release (required) may be aluminum. Power steering pump and reservoir must remain one unit. Driver compartment steering may be modified, must be kept on left side. No rack and pinion. Stock OEM gear box only, may not be moved from original location. Bump Steer cannot be adjusted, no altering of inner or outer tie rod end or sleeves.
SHOCKS: One steel, nonadjustable, unaltered shock per wheel only. Shock must be in OEM mounts and location, using OEM style shock. Mounting spacers and weld or screw-on shock ends allowed. No air or coil-over shocks, remote reservoir shocks, Schrader valves or bladder type valve allowed.
SPRINGS: One steel spring (racing allowed) per wheel only. Minimum 4.5-inches O.D., non-Progressive coils only. No torsion bars or air bags.
REAR SUSPENSION: All control arms and mounts must be steel, unaltered OEM, in OEM location, and match frame. No jack bolts allowed. Adjustable spring buckets allowed, may be dropped as long as they remain in OEM location. If upper spring cup uses all thread, it must be securely welded to chassis. Lower spring cups must be centered on housing. Stock OEM Control arms may be reinforced, but cannot be shortened or lengthened, must remain OEM length. All control arm bushings may be aftermarket, but no offset or bearing type. Bushings cannot be drilled. No suspension parts may be altered or lightened. No aluminum parts allowed, other than bushings.
REAR END: Must use OEM 7.5-inch GM 10 bolt rear end (bracing optional), must remain stock width. No Ford or floater rear end allowed. Housing end, from control arm mount out, may be modified with 3-inch tubing to accept 9" Ford axle. If Ford axles are used, rearend must remain minimum GM width or maximum 3-inches wider. Steel components only. OEM mounts on lower control arms must remain in OEM location on original 7.5-inch tube housing. Aftermarket axles, mini-spools and C-clip eliminators allowed. Locked rear ends only, no torque dividing differentials allowed. No full or aluminum spools allowed. Pinion angle can not be changed. Any gear ratio allowed but housing must remain unaltered. No quick change devices.
BUMPERS/RUB RAILS: (see diagram) Steel bumpers must be on front and rear at all times and welded, or mounted with minimum 0.375 inch bolts. Two bar front bumper must be minimum 1.25-inch O.D. tubing with minimum .065-inch wall thickness (maximum 0.095 inch) mounted frame end to frame end. Rear bumper must be constructed of minimum 1.25-inch tubing, 0.095 wall thickness. Maximum 1.50-inch O.D. tubing, .095-inch wall thickness fuel cell protection bar required, must cover rear and extend past both sides of cell, may be welded to rear bumper. Rear bumper may be maximum 6-inches beyond rear deck. All bumpers and rub rails must be capped with no sharp edges. Single bar rub rail from front to rear wheel allowed on each side, no center supports allowed, maximum 1.50-inch O.D. tubing and .095-inch wall thickness, must be mounted to cage at front and rear of rub rail.
TIRES/WHEELS: Must use unaltered Hoosier '500' Race tire, “H” stamped or with IMCA stamped on sidewall. 27 by 8 by 15 or 26.5 by 8 by 15 'stagger tire' allowed. No chemical softening, conditioning of tires. May groove tires. Tires may be ground or siped within confines of tread. Any offset allowed. May use bead lock, on right rear only. External steel bead lock only and it cannot make wheel any narrower than 8-inches and no wider than 8.75-inches. Steel bolts only. Foam type or plastic outer mud cover allowed on right side wheels. Inner mud cover allowed on left rear only. No bleeder valves. Must use minimum 1-inch O.D. steel lug nuts and 0.625-inch studs are recommended. Wheel adapters are treated as spacers and may be aluminum, maximum 1.50-inches thick. No wheel spacers allowed with OEM studs.
BRAKES: Must be steel OEM, operative three wheel, drum or disc. Must maintain minimum OEM dimensions for hubs/rotors and calipers, cannot be lightened. No oil bath hubs. Bolt pattern may be changed. 0.625-inch studs allowed. Single or dual aftermarket master cylinders allowed. Driver adjustable dual pedal brake bias allowed. Additional proportioning valve (in-line type) allowed, must be out of driver reach. Rear rotors may be aftermarket, minimum 0.810-inch thickness, maximum 12-inch O.D. Vented rotors only, no scalloped, ceramic coated, single phase or drilled rotors allowed. Rear caliper brackets must be welded to housing.
EXHAUST: Recommended: Under Chassis Header, may use modified style header that meets these specifications with 1.625-inch tubes (1-5/8 inch tubes) and 3-inch collector. Some suggested part numbers include: Schoenfeld - GM #161, #151, #151E, or GM #161CM, #151CM, #151ECM (for crate motor) Dynatech - GM #701-16210, #701-10010 Chrysler: #451, #461. Ford: #351, #361, #562, #562-4B. Collector length maximum 9 inches. Turn downs (maximum 10 inches) Required. No header modifications allowed. No exhaust sensors, merge collectors, cross-overs, extensions, inserts or balance tubes. Coated headers allowed. Gator Motorplex Spec Mufflers are Required at all time. No Altering. Must be Custom Kraft 3-Ring Inserts, Loback, or Auger-Baffle Style Insert (Speedway #91013984) minimum 11” long to reduce noise to Texas Law of 86 db. Unaltered Mufflers must be in place before, during and after hot laps, heat race, B-mains, and A-mains, if not driver will not be allowed to participate and disqualification.
FUEL SYSTEM: Racing fuel cell required, maximum 22 gallon capacity (12 gallon recommended), must be in minimum 20 gauge steel container. Must mount with minimum two solid steel straps around entire cell, two inches wide and 0.125 inch thick, between frame rails and behind rear axle. Fuel cell vents, including cap vent, must have check valves. If fuel cell does not have aircraft style positive seal filler neck/cap system - a flapper, spring or ball type filler rollover valve is required. No part of cell can be lower than protective tubing. No regulators, bypass fuel systems, pressurized, or return lines allowed. One fuel filter allowed. No cool cans. Any air cleaner allowed. No cold air boxes or ducting of any kind between engine and hood. Mechanical OEM type push rod fuel pumps only. Maximum 0.100 inch thick carburetor gaskets on all engines. ENGINE: must use IMCAapproved naturally aspirated, unaltered 500 c.f.m. Holley - part no. 4412. Float bowl must face forward. Any adapter, maximum one inch thick. No throttle bore adjustable carburetor spacers. GM CRATE ENGINE: may use any Holley 4 barrel carburetor, all components (float bowls and main body) must be Holley manufactured. Metering blocks and base plate may be billet aluminum non-Holley. No aerosol-style carburetors allowed. May use Speedway Motors part #545-64940 or Moroso part #64940 carburetor spacer on crate.
FUEL: Gasoline only. Racing fuel allowed. No E85. No performance enhancing additives or scented additives. Fuel must pass both dielectric meter and chemical tests. Fuel sample may be taken from any car at any time (Refer to www.imca.com for automatic penalties).
WEIGHT: Minimum weight limit of 2,350 pounds after race with driver in car. Weights must not be used in driver compartment or outside body. All weights must be securely mounted with at least two, .5-inch bolts, painted white with car number on it. No titanium, magnesium, stainless steel or carbon fiber components. Solid steel fasteners only.
BATTERY/STARTER: One 12-volt battery only. Must be shielded and securely mounted. Aftermarket starter allowed, must bolt in OEM location. Must have capability of starting without being pushed or pulled. Must leave initial staging area on demand, unaided, or go to rear of that race.
GAUGES/ELECTRONICS: No unapproved cameras, transmitting or listening devices (exception is one-way RACEceiver radio by officials), timing retard controls, or digital gauges (including tach). No electronic monitoring computer devices capable of storing or transmitting information except memory recall analog tach. 12 volt ignition system and OEM HEI style ignitions only. Ford/Chrysler may use HEI distributor. No crank triggers. Any module that fits inside distributor with no alteration allowed. Crate engine MUST use original HEI distributor with MSD #8728 rev-control and 6,200 rpm chip. Claim engine MAY use MSD #8728 rev-control with any rpm chip. Rev-control must be out of reach of driver, but accessible for inspection with rev limiter facing upward. No ignition boxes, remote coil or accessories. All wiring must be visible for inspection. OEM type alternator with internal regulator allowed. No electronic traction control devices
TRANSMISSION/DRIVE SHAFT: Only OEM production transmissions allowed. No aftermarket transmissions allowed. No 'in and out' boxes or quick change devices allowed. With engine running and car in a still position, must be able to engage car in gear and move forward, then backward. Functioning shift levers must be in OEM location. Transmission fluid coolers allowed. Flywheel, flexplate and converter must be steel.
Automatic: Any OEM automatic transmission allowed. Must use functioning, minimum 10-inch diameter steel torque converter. No direct drives, couplers, valved pumps, or bleeder style valve bodies. Must have at least one forward gear and reverse gear, gears must function. Must have an approved scattershield constructed of .125-inch by three-inch steel, 270 degrees around top of flexplate. GM automatic must be used with GM engine, may be used with Ford or Chrysler engine. Stall converters allowed. Steel OEM style flexplate only, must be bolted directly to end of crankshaft.
Manual: 3, 4 or 5 speed OEM manual transmissions only. All gears must function. Must have functioning 10.5-inch minimum diameter clutch and pressure plate bolted directly to steel flywheel. These components must rotate, consistent with engine rpm, while car is in any gear. Must use explosion-proof steel bellhousing 180 degrees around top of clutch and flywheel. No mini-clutches or couplers. Minimum 9-inch diameter Ford clutch allowed. Hydraulic slave cylinder/throw out bearing allowed.
Drive Shaft: Minimum 2-inch diameter, white, steel drive shaft only. Steel slip-yokes only. 360-degree drive shaft loop required, constructed of at least 0.125-inch by 2-inch steel, or 1-inch tubing, mounted 6-inches back from front U-joint.
ENGINE COMPARTMENT: Rear of engine (bellhousing flange) must be mounted at least 70-inches forward from centerline of rear axle. Minimum 11-inch engine height from ground to center of crankshaft. One radiator allowed, steel or aluminum, 27-inches by 19-inches maximum in size, must be mounted in front of engine. Racing cap and electric fans allowed. No sprinklers. Power steering pump and reservoir must remain one unit and mount in front of engine. Side engine mounts only (OEM or 45-degree style) must be steel, aluminum mid-plate allowed. No vacuum pumps or pan evac systems.
ENGINE OPTIONS AND SPECIFICATIONS:
(A) CRATE ENGINE: Must use unaltered sealed GM #88958602 or #19258602 crate engine. Upon inspection, any different, altered or missing GM seal bolts will result in disqualification, GM seal bolt exception is IMCA approved and issued cable-lock rebuild system, and oil pan may be replaced by IMCA certified builder with Kevko pan #1090NRHw/ISP and Kevko pick-up #1003-3/4.
(B) ENGINE: All engines must be able to be used in conventional passenger car without alterations. External engine casting and threaded holes cannot be altered. No aluminum, titanium or carbon fiber components allowed.
BLOCK: OEM steel passenger vehicle production block only. No GM bowtie, Ford SVO or Chrysler W-2 components allowed. GM approved blocks are: 283, 302, 305, 307, 327, 350. Ford: 260, 289, 302, 351. Chrysler: 273, 318, 340, 360, no hemis. Maximum cubic inch limits: GM 364, Ford 363, Chrysler 370, no tolerance. Violation of cubic inch limit must be verified by removal of head and will result in disqualification, No 400 or larger cubic inch parts allowed. Any flat top or dished pistons allowed, no gas ported pistons. 3.48-inch maximum GM stroke. Maximum 175 lbs. per cylinder compression zero tolerance. Compression checked with one spark plug removed, turned five engine compression revolutions. Engines may be balanced and block decked. Oil filter system must remain OEM. 'Wet' sump oiling system only. No accumulators. OEM or OEM replacement steel crankshaft only - cannot be lightened. No aerowing, bullnose, knife edge, undercut or drilling of second or third rod throws allowed. OEM or OEM replacement steel rods only - GM must use maximum 5.7-inch rod. No cap screws. No splayed main caps. Floating wrist pins allowed. Racing oil pans allowed. Recommended one inch inspection hole in all pans. - no obstructions to crank and rods. Pan removal required if no inspection hole and at the discretion of the track. Engine bolts may be aftermarket. Fluid dampener balancer allowed. No roller bearings allowed.
CYLINDER HEADS: Steel only. GM OEM approved head numbers are (last 3 digits): 126, 185, 336, 441, 445, 487, 487X, 493, 598, 624, 862, 882, 920, 993, 997, with valve no larger than 1.94-inch intake and 1.50-inch exhaust. May use Engine Quest (EQ) Stock Replacement (SR) cylinder head, part number CH350I, head must remain as produced, seat angles and valve sizes can not be changed: three angle valve job only (absolutely no casting removal in valve pocket of EQ head, for any reason). No porting, polishing, or unapproved alterations to ANY cylinder head. Any cast iron OEM Ford and Chrysler heads allowed with valves no larger than 2.04-inch intake and 1.70-inch exhaust. Headers must bolt directly to heads with correct numbers. No vortec, bowtie, SVO, W-2 or aftermarket heads allowed. Flat milling allowed. Guide plates, screw-in shouldered studs (0.375- inch max) and polylocks allowed. No stud girdles. Steel roller tip rocker arms allowed. Chrysler may use OEM rocker arm bars. Any length push rods allowed. OEM diameter springs (GM - 1.250 inch maximum O.D.) must match heads, no beehive valve springs allowed. No Jessel or other assmemblies allowed. No O-Ring Blocks or Heads, No Bresinski or similar style heads.
INTAKE: Unaltered, approved OEM cast iron low rise, two- or four-barrel. Only unaltered (no porting or polishing) aftermarket aluminum intakes allowed are: Weiand GM #7547, #7547-1; Ford #7515, #8023 or #7516; Chrysler #7545; Edelbrock GM #2701; Ford #7121, #7181, #7183; Chrysler #2915. Cooling lines allowed on aluminum intakes. Disqualification if any alterations are found to heads/intake. Ford may use OEM aluminum intake, no under air or hi-rise. Belt driven, OEM style water pumps only, no aluminum water pumps on GM engine.
CAMSHAFT:Conventional Flat Tappet or Hydraulic - OEM firing order cannot be changed (GM: 1-8-4-3-6-5-7-2). No maximum cam lift. No vacuum rule. Up to four bronze bushings will be allowed in lifter bore for repair. Hydraulic lifters, Anti-pump up lifters, no solid lifters. Must be chain driven, no gear/belt drives.
EIRI: (Except in rare instances) Decisions of officials are final and binding without exception
Includes Clarifications made through IMCA and Adopted by Gator Motorplex
SAFETY EQUIPMENT: Rules apply at all times car is on track. Snell-rated SA2000, SA2005 or SA2010 helmet required. Roll bar padding required in driver compartment (Fire retardant recommended). SFI-approved full fire suit required. Fire retardant gloves, shoes and neck brace (or head and neck restraint) required. Right and left seat head supports required if using head restraint system with no neck collar. Recommended: Fire retardant head sock and underwear; collapsible steering shaft. Driver-side window net required, minimum 16 inch by 20 inch ribbon or mesh style, Sprint car net allowed and must be mounted to roll cage so latch is at top front of window. Minimum three inch (two-inch with head restraint system) wide SFI-approved five point safety belt assembly required (Y-type shoulder harness not allowed), must be mounted securely to roll cage, recommended to be no more than two years old. Kill switch required within easy reach of driver and must be clearly marked 'OFF' and 'ON'.
FRAME: 1978-1987 OEM midsize GM metric full frame only. Minimum wheelbase 107-inches, maximum 109-inches, both sides. Frame must be full and complete, cannot be widened, narrowed, shortened, lengthened, or be cut, bent, or altered to change suspension brackets, except upper control arm brackets on front end. All frame bolt holes must remain in OEM location. Front frame horns may be removed in front of steering box. Front frame may be cut for radiator clearance. Frame may be notched for seat clearance. Transmission cross- member mounts may be removed, no further forward than frame welds. Rear of frame, behind upper shock mounts, may be replaced with round, square, or rectangular tubing. No part of frame can be lower than five inches from ground except front cross-member. No other frame alterations allowed. See drawing for OEM frame dimensions
ROLL CAGE: Must consist of continuous hoops, minimum 1.5 inch O.D. tubing, with a minimum wall thickness of.095 inch for main cage. Cages must be steel or chrome-moly. Main cage no further forward than rear of engine and no further back than front edge of rear tire. Four bars, two per side, may extend from main roll cage to main frame points in front of the upper control arms. These bars may have two additional braces per side to the main frame. Six bars may extend from the main cage to the rear. X-bracing is allowed. Driver's head must not protrude outside cage with helmet on. Roll cage must be securely supported and braced with minimum one cross bar in top halo. All bars forward of cage must be lower than hood.
DOOR BARS: Minimum three driver side door bars required, minimum 1.5 inch O.D. and .083 inch wall thickness, must be parallel to ground and perpendicular to driver, and welded to front and rear of roll cage. Minimum two passenger side door bars required, must have at least one cross door bar, horizontal or angled. Steel door plate, 18 gauge or .049- inch.
BODY: [Pay close attention to the measurements] (See diagram) No composite or plastic body panels allowed except roof rock guard and hood scoop. Body must be same width, front to rear, and parallel to OEM frame. Aluminum nose panel must be flat. Maximum 2.250 inch side fins allowed on aluminum nose. MD3 plastic nosepiece, part#020-410 allowed. All nose panels may be no wider, or lower than two inches outside of front frame horns and remain within 0.5 inch tolerance outside confines of front bumper. Plastic nosepiece must be mounted in an approved manner and can extend no further back than 6 inches from front of hood. Cooling holes allowed. Engine compartment must remain open (no side panels). Hood must be level or sloped down at front, enclosed and flush with interior deck at rear. No reverse hood rake allowed. No panel in front of right door to engine compartment. No inner panels. No car covers. Must have front and rear roof support posts. Driver and passenger side windows must have at least 12 inch opening (height and width). Full size, fiberglass or aluminum roof only (see diagram). No dished roofs allowed. Driver roof hatch allowed. Maximum 1.5 inch rolled down rock guard allowed on roof front. Maximum 4 inch roof sides allowed. Maximum 1 inch ridge down sides of roof. Maximum 1 inch rear roof stiffener (must face down). Window side panels must resemble all aspects of drawing and may not extend ahead of back of seat.
Rear spoiler (optional) may be minimum 1 inch or maximum 8 inches in material height and maximum 67 inches wide. Spoiler may have stiffener, must be 1 inch or more down from top. Maximum 3 spoiler braces allowed, must be mounted in line. Spoiler braces must resemble all aspects of drawing. Spoiler must be mounted within confines of spoiler braces. Spoiler may be aluminum or lexan. No fins, lips or wings allowed.
Scoring- Car number must be minimum four inches thick and 20 inches tall and clearly visible, on both sides, top and back of car, and front, if possible. Recommended: Avoid holographic or dark on dark colors for numbers. The best number is the top number outlined in white or black depending on car color.
DRIVER COMPARTMENT: Must have minimum three windshield bars in front of driver. Lexan or aluminum cowl panel in front of driver can be no wider than cockpit and no further back than steering wheel. Floor pan must be metal or aluminum and cover entire driver compartment. Aluminum high-back seat only, must be securely bolted, using minimum 0.375-inch bolts, to roll cage and support system. Bottom of seat can be no lower than bottom of frame rail. Driver must be sealed off from track, driveline, engine, fuel cell, cannisters and pumps. No oil coolers allowed in driver compartment. No devices that would enable driver adjustment to alter wheelbase or for weight jacking while car is in competition. No mirrors of any kind.
FRONT SUSPENSION: All components must be steel, unaltered OEM, in OEM location, and match frame. No jack bolts allowed. Adjustable spring buckets are allowed. Must use OEM upper and lower A-frames and mounts. OEM upper A-frame may be replaced using aftermarket upper A-frame (steel or aluminum cross shaft allowed), part(s) #91034394 L/R or #910-34393 R/L. Upper A-frame mounts may be modified and moved for caster and camber adjustment, but must remain OEM material. Lower A-frame mounts and bolt holes on frame must be in OEM location, mount may be notched for clearance. All A-frame bushings may be aftermarket, but no offset or bearing type. OEM or OEM replacement ball joints allowed, may be tacked in. Sway bars (optional) and brackets must remain OEM.
STEERING: All components must be steel, unaltered OEM, in OEM location and match frame. No grinding, lightening or welding on any steering parts. Spindle may be reamed and bolt on spindle savers are allowed. Steel steering shafts and knuckles only. Steering quickener (optional), steering wheel and quick release (required) may be aluminum. Power steering pump and reservoir must remain one unit. Driver compartment steering may be modified, must be kept on left side. No rack and pinion. Stock OEM gear box only, may not be moved from original location. Bump Steer cannot be adjusted, no altering of inner or outer tie rod end or sleeves.
SHOCKS: One steel, nonadjustable, unaltered shock per wheel only. Shock must be in OEM mounts and location, using OEM style shock. Mounting spacers and weld or screw-on shock ends allowed. No air or coil-over shocks, remote reservoir shocks, Schrader valves or bladder type valve allowed.
SPRINGS: One steel spring (racing allowed) per wheel only. Minimum 4.5-inches O.D., non-Progressive coils only. No torsion bars or air bags.
REAR SUSPENSION: All control arms and mounts must be steel, unaltered OEM, in OEM location, and match frame. No jack bolts allowed. Adjustable spring buckets allowed, may be dropped as long as they remain in OEM location. If upper spring cup uses all thread, it must be securely welded to chassis. Lower spring cups must be centered on housing. Stock OEM Control arms may be reinforced, but cannot be shortened or lengthened, must remain OEM length. All control arm bushings may be aftermarket, but no offset or bearing type. Bushings cannot be drilled. No suspension parts may be altered or lightened. No aluminum parts allowed, other than bushings.
REAR END: Must use OEM 7.5-inch GM 10 bolt rear end (bracing optional), must remain stock width. No Ford or floater rear end allowed. Housing end, from control arm mount out, may be modified with 3-inch tubing to accept 9" Ford axle. If Ford axles are used, rearend must remain minimum GM width or maximum 3-inches wider. Steel components only. OEM mounts on lower control arms must remain in OEM location on original 7.5-inch tube housing. Aftermarket axles, mini-spools and C-clip eliminators allowed. Locked rear ends only, no torque dividing differentials allowed. No full or aluminum spools allowed. Pinion angle can not be changed. Any gear ratio allowed but housing must remain unaltered. No quick change devices.
BUMPERS/RUB RAILS: (see diagram) Steel bumpers must be on front and rear at all times and welded, or mounted with minimum 0.375 inch bolts. Two bar front bumper must be minimum 1.25-inch O.D. tubing with minimum .065-inch wall thickness (maximum 0.095 inch) mounted frame end to frame end. Rear bumper must be constructed of minimum 1.25-inch tubing, 0.095 wall thickness. Maximum 1.50-inch O.D. tubing, .095-inch wall thickness fuel cell protection bar required, must cover rear and extend past both sides of cell, may be welded to rear bumper. Rear bumper may be maximum 6-inches beyond rear deck. All bumpers and rub rails must be capped with no sharp edges. Single bar rub rail from front to rear wheel allowed on each side, no center supports allowed, maximum 1.50-inch O.D. tubing and .095-inch wall thickness, must be mounted to cage at front and rear of rub rail.
TIRES/WHEELS: Must use unaltered Hoosier '500' Race tire, “H” stamped or with IMCA stamped on sidewall. 27 by 8 by 15 or 26.5 by 8 by 15 'stagger tire' allowed. No chemical softening, conditioning of tires. May groove tires. Tires may be ground or siped within confines of tread. Any offset allowed. May use bead lock, on right rear only. External steel bead lock only and it cannot make wheel any narrower than 8-inches and no wider than 8.75-inches. Steel bolts only. Foam type or plastic outer mud cover allowed on right side wheels. Inner mud cover allowed on left rear only. No bleeder valves. Must use minimum 1-inch O.D. steel lug nuts and 0.625-inch studs are recommended. Wheel adapters are treated as spacers and may be aluminum, maximum 1.50-inches thick. No wheel spacers allowed with OEM studs.
BRAKES: Must be steel OEM, operative three wheel, drum or disc. Must maintain minimum OEM dimensions for hubs/rotors and calipers, cannot be lightened. No oil bath hubs. Bolt pattern may be changed. 0.625-inch studs allowed. Single or dual aftermarket master cylinders allowed. Driver adjustable dual pedal brake bias allowed. Additional proportioning valve (in-line type) allowed, must be out of driver reach. Rear rotors may be aftermarket, minimum 0.810-inch thickness, maximum 12-inch O.D. Vented rotors only, no scalloped, ceramic coated, single phase or drilled rotors allowed. Rear caliper brackets must be welded to housing.
EXHAUST: Recommended: Under Chassis Header, may use modified style header that meets these specifications with 1.625-inch tubes (1-5/8 inch tubes) and 3-inch collector. Some suggested part numbers include: Schoenfeld - GM #161, #151, #151E, or GM #161CM, #151CM, #151ECM (for crate motor) Dynatech - GM #701-16210, #701-10010 Chrysler: #451, #461. Ford: #351, #361, #562, #562-4B. Collector length maximum 9 inches. Turn downs (maximum 10 inches) Required. No header modifications allowed. No exhaust sensors, merge collectors, cross-overs, extensions, inserts or balance tubes. Coated headers allowed. Gator Motorplex Spec Mufflers are Required at all time. No Altering. Must be Custom Kraft 3-Ring Inserts, Loback, or Auger-Baffle Style Insert (Speedway #91013984) minimum 11” long to reduce noise to Texas Law of 86 db. Unaltered Mufflers must be in place before, during and after hot laps, heat race, B-mains, and A-mains, if not driver will not be allowed to participate and disqualification.
FUEL SYSTEM: Racing fuel cell required, maximum 22 gallon capacity (12 gallon recommended), must be in minimum 20 gauge steel container. Must mount with minimum two solid steel straps around entire cell, two inches wide and 0.125 inch thick, between frame rails and behind rear axle. Fuel cell vents, including cap vent, must have check valves. If fuel cell does not have aircraft style positive seal filler neck/cap system - a flapper, spring or ball type filler rollover valve is required. No part of cell can be lower than protective tubing. No regulators, bypass fuel systems, pressurized, or return lines allowed. One fuel filter allowed. No cool cans. Any air cleaner allowed. No cold air boxes or ducting of any kind between engine and hood. Mechanical OEM type push rod fuel pumps only. Maximum 0.100 inch thick carburetor gaskets on all engines. ENGINE: must use IMCAapproved naturally aspirated, unaltered 500 c.f.m. Holley - part no. 4412. Float bowl must face forward. Any adapter, maximum one inch thick. No throttle bore adjustable carburetor spacers. GM CRATE ENGINE: may use any Holley 4 barrel carburetor, all components (float bowls and main body) must be Holley manufactured. Metering blocks and base plate may be billet aluminum non-Holley. No aerosol-style carburetors allowed. May use Speedway Motors part #545-64940 or Moroso part #64940 carburetor spacer on crate.
FUEL: Gasoline only. Racing fuel allowed. No E85. No performance enhancing additives or scented additives. Fuel must pass both dielectric meter and chemical tests. Fuel sample may be taken from any car at any time (Refer to www.imca.com for automatic penalties).
WEIGHT: Minimum weight limit of 2,350 pounds after race with driver in car. Weights must not be used in driver compartment or outside body. All weights must be securely mounted with at least two, .5-inch bolts, painted white with car number on it. No titanium, magnesium, stainless steel or carbon fiber components. Solid steel fasteners only.
BATTERY/STARTER: One 12-volt battery only. Must be shielded and securely mounted. Aftermarket starter allowed, must bolt in OEM location. Must have capability of starting without being pushed or pulled. Must leave initial staging area on demand, unaided, or go to rear of that race.
GAUGES/ELECTRONICS: No unapproved cameras, transmitting or listening devices (exception is one-way RACEceiver radio by officials), timing retard controls, or digital gauges (including tach). No electronic monitoring computer devices capable of storing or transmitting information except memory recall analog tach. 12 volt ignition system and OEM HEI style ignitions only. Ford/Chrysler may use HEI distributor. No crank triggers. Any module that fits inside distributor with no alteration allowed. Crate engine MUST use original HEI distributor with MSD #8728 rev-control and 6,200 rpm chip. Claim engine MAY use MSD #8728 rev-control with any rpm chip. Rev-control must be out of reach of driver, but accessible for inspection with rev limiter facing upward. No ignition boxes, remote coil or accessories. All wiring must be visible for inspection. OEM type alternator with internal regulator allowed. No electronic traction control devices
TRANSMISSION/DRIVE SHAFT: Only OEM production transmissions allowed. No aftermarket transmissions allowed. No 'in and out' boxes or quick change devices allowed. With engine running and car in a still position, must be able to engage car in gear and move forward, then backward. Functioning shift levers must be in OEM location. Transmission fluid coolers allowed. Flywheel, flexplate and converter must be steel.
Automatic: Any OEM automatic transmission allowed. Must use functioning, minimum 10-inch diameter steel torque converter. No direct drives, couplers, valved pumps, or bleeder style valve bodies. Must have at least one forward gear and reverse gear, gears must function. Must have an approved scattershield constructed of .125-inch by three-inch steel, 270 degrees around top of flexplate. GM automatic must be used with GM engine, may be used with Ford or Chrysler engine. Stall converters allowed. Steel OEM style flexplate only, must be bolted directly to end of crankshaft.
Manual: 3, 4 or 5 speed OEM manual transmissions only. All gears must function. Must have functioning 10.5-inch minimum diameter clutch and pressure plate bolted directly to steel flywheel. These components must rotate, consistent with engine rpm, while car is in any gear. Must use explosion-proof steel bellhousing 180 degrees around top of clutch and flywheel. No mini-clutches or couplers. Minimum 9-inch diameter Ford clutch allowed. Hydraulic slave cylinder/throw out bearing allowed.
Drive Shaft: Minimum 2-inch diameter, white, steel drive shaft only. Steel slip-yokes only. 360-degree drive shaft loop required, constructed of at least 0.125-inch by 2-inch steel, or 1-inch tubing, mounted 6-inches back from front U-joint.
ENGINE COMPARTMENT: Rear of engine (bellhousing flange) must be mounted at least 70-inches forward from centerline of rear axle. Minimum 11-inch engine height from ground to center of crankshaft. One radiator allowed, steel or aluminum, 27-inches by 19-inches maximum in size, must be mounted in front of engine. Racing cap and electric fans allowed. No sprinklers. Power steering pump and reservoir must remain one unit and mount in front of engine. Side engine mounts only (OEM or 45-degree style) must be steel, aluminum mid-plate allowed. No vacuum pumps or pan evac systems.
ENGINE OPTIONS AND SPECIFICATIONS:
(A) CRATE ENGINE: Must use unaltered sealed GM #88958602 or #19258602 crate engine. Upon inspection, any different, altered or missing GM seal bolts will result in disqualification, GM seal bolt exception is IMCA approved and issued cable-lock rebuild system, and oil pan may be replaced by IMCA certified builder with Kevko pan #1090NRHw/ISP and Kevko pick-up #1003-3/4.
(B) ENGINE: All engines must be able to be used in conventional passenger car without alterations. External engine casting and threaded holes cannot be altered. No aluminum, titanium or carbon fiber components allowed.
BLOCK: OEM steel passenger vehicle production block only. No GM bowtie, Ford SVO or Chrysler W-2 components allowed. GM approved blocks are: 283, 302, 305, 307, 327, 350. Ford: 260, 289, 302, 351. Chrysler: 273, 318, 340, 360, no hemis. Maximum cubic inch limits: GM 364, Ford 363, Chrysler 370, no tolerance. Violation of cubic inch limit must be verified by removal of head and will result in disqualification, No 400 or larger cubic inch parts allowed. Any flat top or dished pistons allowed, no gas ported pistons. 3.48-inch maximum GM stroke. Maximum 175 lbs. per cylinder compression zero tolerance. Compression checked with one spark plug removed, turned five engine compression revolutions. Engines may be balanced and block decked. Oil filter system must remain OEM. 'Wet' sump oiling system only. No accumulators. OEM or OEM replacement steel crankshaft only - cannot be lightened. No aerowing, bullnose, knife edge, undercut or drilling of second or third rod throws allowed. OEM or OEM replacement steel rods only - GM must use maximum 5.7-inch rod. No cap screws. No splayed main caps. Floating wrist pins allowed. Racing oil pans allowed. Recommended one inch inspection hole in all pans. - no obstructions to crank and rods. Pan removal required if no inspection hole and at the discretion of the track. Engine bolts may be aftermarket. Fluid dampener balancer allowed. No roller bearings allowed.
CYLINDER HEADS: Steel only. GM OEM approved head numbers are (last 3 digits): 126, 185, 336, 441, 445, 487, 487X, 493, 598, 624, 862, 882, 920, 993, 997, with valve no larger than 1.94-inch intake and 1.50-inch exhaust. May use Engine Quest (EQ) Stock Replacement (SR) cylinder head, part number CH350I, head must remain as produced, seat angles and valve sizes can not be changed: three angle valve job only (absolutely no casting removal in valve pocket of EQ head, for any reason). No porting, polishing, or unapproved alterations to ANY cylinder head. Any cast iron OEM Ford and Chrysler heads allowed with valves no larger than 2.04-inch intake and 1.70-inch exhaust. Headers must bolt directly to heads with correct numbers. No vortec, bowtie, SVO, W-2 or aftermarket heads allowed. Flat milling allowed. Guide plates, screw-in shouldered studs (0.375- inch max) and polylocks allowed. No stud girdles. Steel roller tip rocker arms allowed. Chrysler may use OEM rocker arm bars. Any length push rods allowed. OEM diameter springs (GM - 1.250 inch maximum O.D.) must match heads, no beehive valve springs allowed. No Jessel or other assmemblies allowed. No O-Ring Blocks or Heads, No Bresinski or similar style heads.
INTAKE: Unaltered, approved OEM cast iron low rise, two- or four-barrel. Only unaltered (no porting or polishing) aftermarket aluminum intakes allowed are: Weiand GM #7547, #7547-1; Ford #7515, #8023 or #7516; Chrysler #7545; Edelbrock GM #2701; Ford #7121, #7181, #7183; Chrysler #2915. Cooling lines allowed on aluminum intakes. Disqualification if any alterations are found to heads/intake. Ford may use OEM aluminum intake, no under air or hi-rise. Belt driven, OEM style water pumps only, no aluminum water pumps on GM engine.
CAMSHAFT:Conventional Flat Tappet or Hydraulic - OEM firing order cannot be changed (GM: 1-8-4-3-6-5-7-2). No maximum cam lift. No vacuum rule. Up to four bronze bushings will be allowed in lifter bore for repair. Hydraulic lifters, Anti-pump up lifters, no solid lifters. Must be chain driven, no gear/belt drives.
EIRI: (Except in rare instances) Decisions of officials are final and binding without exception
2013 STEET STOCK RULES
When choosing an OEM body, any year make or model to present date will be allowed with all steel body panels, roof, trunk, quarters, ect. Factory OEM aluminum hood permitted. No other aluminum or fiberglass body components. All cars must have factory or aftermarket nose piece. Aftermarket steel bodies will be allowed. Bodies must be mounted in stock location, or be proportionate to stock location when using an alternate body. All bodies stock or aftermarket are subject to approval by the technical inspector. Wheel base as measured at the tech pad will have minimum of 107.5”for metric chassis; 104" 1981 or earlier Camaro; 101" for Strut Chassis. Frame and/or wheel base may not be altered to change the original wheelbase. Ballast allowed, must be welded or bolted to the frame or roll cage structure with a minimum of two 1/2” bolts per 100 pounds. Minimum of two (2) bolts per piece/location. Bolted ballast must be painted white, and car number must be on ballast. NO liquid ballast.
WEIGHT: 3000 lbs. Minimum with driver after heat and feature event.
ENGINE SPECS
Any engine found to be illegal will include disqualification from that event and forfeiture of points, money and trophy. An illegal engine consists of any illegal parts found horizontally from the fan blade through the flywheel and vertically from the oil pan through the carburetor.
1. Maximum of 361 cubic inches. Ford, Dodge, and GM are allowed· Engine displacement formula for determining cubic inches is: bore x bore x .7854 x stroke x number of cylinders = cubic displacement. Any engine exceeding maximum allowable cubic inch displacement limit will cause disqualification.
2. Only cast iron OEM production blocks allowed. NO bowtie, Dart, Little M., Ect.
· GM chassis – GM block
· Ford chassis – Ford block
· Dodge chassis – Dodge block
3. ANY cast or steel crankshaft. After market fluid dampeners allowed
4. ANY steel connecting rod allowed. Aluminum rods PROHIBITED.
5. Pistons may be flat top (2) valve relief or OEM equivalent. NO domed pistons! Cast or forged OK. Any type pistons rings allowed. Must have a minimum of (2) compression rings and (2) oil ring. Floating wrist pins are allowed. NO titanium. Engine block permitted a minimum of .0 deck clearance. Piston must not hit straight edge held over cylinder while engine is cranked with starter.
6. Any camshaft: solid, hydraulic or roller. NO mushrooms. NO oversize lifters.
7. NO dry sump oil systems or vacuum pumps.
8. GM Sealed Crate 602 allowed.
CYLINDER HEADS
Note: Casting numbers must remain in cylinder head or head is illegal. Must retain manufacturer part # and intake port runner size. Also, NO o-ringing of block to mate head gasket with block and head.
1. Any 23 degree heads cast iron ONLY. NO more than 200cc on intake runners. 2.02 intakes and 1.60 exhaust valves maximum.
2. NO acid dipping, porting or polishing. Heads maybe flat or angle milled.
3. Screw in studs, pinning and guide plate allowed. NO titanium valves or components.
4. Any work done in the bowl area must be done with a 360 degree cut, with the valve guide as the center point.
5. Full rocker arms are allowed. Roller tip rocker arms are allowed. Polylocks are allowed. Stud girdles are allowed. NO Jessel or similar allowed.
6. Any breather/valve cover combination is allowed.
ENGINE LOCATION
1. Minimum engine height is 10” from the ground to the center of the crankshaft. This will be measured on the front of the crankshaft/pulley.
2. ENGINE SETBACK is #1 spark plug even with ball joint or forward for all cars except '82-'92 strut cars.
Note: '82 to '92 Camaros, Firebirds, Trans-Ams (strut cars) engine setback must be 14" from center of steering gear box slack adjustment bolt to center of first header bolt on driver’s side.
3. Side engine mounts may be 45 degree style, steel ONLY. Rear motor plates allowed.
4. Firewall setback is allowed.
CARBURETOR
1. Holley 2 Barrel #4412 only - 500 CFM maximum with 1-11/16 throttle bore maximum. Choke horn must be attached. List # must be legible on air horn. Circle track floats may be used. NO other alterations are allowed.
2. GASOLINE ONLY! Carb spacers/adapters allowed with #4412. Must NOT exceed 1¼” in thickness. NO injectors or pressure systems allowed. Tech Official’s may use any inspection procedure, including Test Gauges.
3. Cast iron or aluminum intake manifold - Note: No Brezensinki or special order intake allowed. NO tin intakes. NO tunnel rams. Any brand / style / size of air cleaner are allowed, but no kind of RAM air is allowed. NO coating, NO acid porting, NO porting, polishing or port machine or intake manifolds, intake manifold may not be altered in anyway. NO vacuum leaks between the intake valve and the top of the carburetor.
IGNITION
1. Stock or replacement ignitions ONLY.
2. HEI must remain in one unit. NO external coils allowed. MSD or any module may be used as long as it fits inside the cap with no alterations. Vacuum advance may be removed and the pick-up coil locked. Must be stock appearing housing and cap.
3. MSD Boxes (6A, 6AL, 6T ONLY) are allowed on Ford and Chrysler engines ONLY. Any after market or GM electronic boxes are NOT Allowed on GM. No electronic traction control devices
4. NO racing ignitions, crank triggers or magnetos.
EXHAUST SYSTEM
1. MUFFLERS ARE MANDATORY, and MAY NOT BE ALTERED. NO EXCEPTIONS. Mufflers Options: LOBACK MUFFLERS or TWISTER F-SERIES AUGER MUFFLERS or SPEEDWAY UN-ALTERED AUGER INSERT. TURN DOWNS REQUIRED ON ALL EXHAUST PIPES FACING THE GROUND, NO EXHAUST MAY EXIT THE SIDE OF CAR- MUST BE ON CAR PRIOR TO ENTERING TRACK SURFACE. Both Mufflers must be in place prior to hot laps, heat and feature races or car will be disqualified for the night, forfeiting all winnings and will not be able to finish the race. Note: There will be no grace periods given on mufflers.
2. Cast iron exhaust manifold is allowed. Street headers are allowed and Schoenfeld headers are allowed. Maximum 3½ OD. No 180 degree or over the top of engine exhaust allowed
3. Header must be under chassis style, exhaust must run past the front edge of the Driver seat and turn down.
RADIATOR
1. Only one (1) radiator is allowed. Radiator must be mounted in the stock location.
2. Radiator may be aluminum.
3. Racing radiator cap is allowed.
4. Must mount radiator overflow through the frame and exit the frame under the car just behind the right front wheel.
5. NO electric cooling fans.
FUEL
1. GASOLINE ONLY. Racing gas is allowed. NO ADDITIVES. NO ALCOHOL. NO NITROUS.
FUEL PUMPS
1. NO electric fuel pumps. ONLY stock mount push rod activated pumps are allowed.
2. Holley and Carter style are allowed.
FUEL TANKS
1. Maximum 22 gallon fuel cell. Must be in can.
2. Fuel cells ONLY. Must be securely mounted inside trunk area ONLY, must be between frame rails and must be totally enclosed from the driver compartment. A minimum of two (2) fuel cell straps 2” x ⅛” required to secure fuel cell. Fuel cell with a rollover valve is required.
3. Fuel cell protection bar is required. Must be a minimum of 1½” x .095”. It must protect the fuel cell from the rear. It must be as low as the fuel cell, and extend from side to side as wide as the fuel cell. It is recommended that this bar be attached to the frame, NOT the bumper. If the fuel cell protection is not present the car will NOT Be allowed to continue racing. The fuel cell protection bar must be attached to the frame.
TRANSMISSION
1. Any OEM automatic transmission is allowed. Unit must be stock and have a working torque converter. NO direct drives, valved pumps or bleeder valve bodies. All forward and reverse gears must be in working order, except Powerglide. Powerglide is allowed either or both forward gears, with neutral and reverse in working order.
2. Standard transmissions must be stock, with all gears working, with minimum of 10.5” clutch, pressure plate and full size stock flywheel. Mini-Clutch allowed. NO direct drives. Standard may use stock aluminum flywheel.
3. All standards must have bell housing made of ¼” thick steel and cover 180 degrees over the sides and top of the clutch assembly.
4. NO 2, 5 or 6 speed manual transmission. NO overdrives or overdrive units. NO Bert or Brinn style transmissions allowed..
5. NO ram couplers.
6. Quick-change transmissions or transmission adapters for gear change are NOT allowed.
7. Car must be self-starting and having working neutral, reverse and forward.
8. Transmission coolers are allowed. If exposed to driver, it must be shielded in case of leaks.
9. Automatic Transmissions must have a scatter shield, minimum 3/16” x 4” wide steel. May be attached to the bell housing or the floor pan.
DRIVESHAFTS
Driveshaft must be steel, and must be painted white. Must have a steel driveshaft loop (360 degree) connected to the frame within 6” of the front driveshaft u-joint. Minimum of 2” x ¼” or minimum of 1” round. NO chain loops allowed as front loops.
REARENDS
1. After-market axles, studs, and mini-spools are allowed. NO posi-trac, or limited slip style rearends. Rearend axles must be locked together.
2. 9” Ford allowed.
3. Any gear ratio may be used if no alteration to housing is required.
4. Bolt pattern on the axle / drums may be changed.
5. Wheel adapters are allowed.
6. Rear end may be locked by welding spider gears, using a mini-spool or with a full spool. NO aluminum.
7. NO quick change rearends.
8. Floater Style rearend is allowed
9. Disc brakes are allowed. Steel components ONLY. Single piston ONLY.
BRAKES
1. All components at wheel must be stock OEM. Except disc must be steel.
2. Dual master cylinder after market brake pedal is allowed.
3. Rear brakes may be disc.
4. An adjustable proportioning valve may be used. May not be in driver’s compartment.
5. Minimum of three (3) working brakes is required. If using (4) brakes a shut off valve may be used for the fourth brake.
6. If using three (3) brakes, the fourth brake assembly need not be present. If the fourth is the right front, the caliper and the rotor may be removed. Spindle to remain unaltered.
7. Cooling holes may not be drilled in any brake component.
STEERING
1. Quick release steering wheel is mandatory.
2. Quick steer is optional. NO chains or sprockets are allowed in the steering system. D & M OK.
3. Steering left of drive train ONLY.
4. Bump steer cannot be adjusted. Center link, inner tie-rods, outer tie-rods or sleeves cannot be altered.
5. Power steering is allowed. After market power steering may be used.
6. NO rack and pinion steering. Stock OEM steering box must be used.
SUSPENSION
1. Upper control arm brackets may be moved for caster and camber adjustment. Must use stock OEM upper control arms and brackets or any after-market non-adjustable tubular A-Arm.
2. Upper and lower control arm bushings may be after market and may use steel bushings, no mono-ball bushings.
3. Lower control arms and brackets must be stock OEM.
4. Lowers control arms must match make, model and year of frame.
5. If used, sway bars and brackets must remain stock. Bushings may be after market.
6. Racing springs are allowed. Adjustable spring buckets are allowed. Jack bolts are allowed.
7. Spindles and rotors must remain stock for year, make and model. Spindle may be reamed for bigger ball joints. NO grinding or lightened parts. ⅝” studs are allowed in any bolt patterns.
8. Tie-rods, center link pitman arm, steering box and idler arms must be stock for year, make and model.
9. Larger size press-in ball joints may be used. NO mono-ball joints allowed. May be welded.
10. If rear coil spring car, lower rear end trailing arm brackets maybe moved for pinion adjustment. Metric cars must retain all four (4) links, and Lower trailing arms must match year, make and model (OEM) and may use steel bushings. Upper rear trailing arms may be adjustable. NO suspension parts may be altered or lightened on leaf spring cars. Must remain stock for year, make and model of car. Must be Ford on Ford, GM on GM, Dodge on Dodge. No After-Market suspension parts, such as panhard bars, j-bars, hard bars, pull-bars, etc.
11. Ford 9” rearend is allowed on any make and model.
12. Wheel adapters are allowed with 5/8 studs.
13. Non-Adjustable lowering blocks allowed, two (2”) inches max. Sliders or shackles on leaf springs maybe adjustable.
14. After market steel leaf and coil springs are allowed. Composite Leaf Springs are allowed. NO coil overs.
15. Rear coil springs ONLY, may use maximum two (2”) inch spacer welded to frame or rear housing. Adjustable coil spring spacers allowed, front and rear.
16. Aluminum suspension parts are NOT allowed, even if it fits year, make and model.
Strut Chassis Specific:
1. Front Suspension: Strut type car must retain strut suspension. May run braces to side of strut tower. May place plate on top of strut tower and run brace from plate to cage. All strut mount cars must use struts that bolt in stock position. No alterations to mounts, except the afore mentioned bracing. Aftermarket racing shocks allowed. Racing springs allowed. Adjustable tie rods allowed.
2. Rear Suspension: Stock torque arm on '82 - '92 Camaros, Firebirds, and Trans Ams must be non-adjustable and mounted solid, level with no flex plates or any other device to let mount flex. Front of arm may run through a rubber bushing with rod sticking straight forward through bushing. No heim ends on arm allowed. Torque may be reinforced without any alterations to length and location. Non-adjustable pan-hard bar must remain completely stock and in stock holes and in stock location.
3. Engine Setback: '82 to '92 Camaros, Firebirds, Trans-Ams (strut cars) engine setback must be 14" from center of steering gear box slack adjustment bolt to center of first header bolt on driver’s side.
SHOCKS
1. Shocks must be steel, may be after market.
2. Front: any steel shock and may be relocated.
3. Rear: any steel shock and may be relocated.
4. One shock per wheel.
5. NO more than four (4) shocks on car.
FRAME
1. Complete and unaltered OEM Frame (front suspension to rear suspension) as per OEM specifications is required. NO complete or partial tube chassis. Can plate frame.
2. On 1978 – 1987 metric frames the outside of the frame may be altered for right front tire clearance.
3. Frame or brackets can not be cut, bent, or altered to change suspension.
4. Uni-bodies and Strut Cars must be tied together from front sub-frame to rear sub-frame.
ROLL CAGE
1. Roll cage material must be a minimum of 1½” x .095 wall thickness round steel tubing. Must be box type cage, four (4) uprights connecting tubing on roll cage. Roll cage must have rear supports going down to the frame and may extend into the trunk area, and diagonal tubing is required to keep the cage from moving from side to side. Roll cage must have minimum three (3) door bars ( 1½” x .095). The center of the roll cage and driver's seat may be no further back than the third (3rd) body mount bushing frame hole for metric frames. All welds must be complete and pass safety inspection by tech personnel.
2. NO iron or square tubing allowed in main section of the cage.
3. NO brazing or soldering.
4. NO aluminum cages allowed.
5. A minimum of two (2) bars, (engine bay bars) one (1) per side, may extend from the main roll cage to points on the main frame in front of the upper control arms, These bars may have three (3) additional braces per side to the main frame.
6. A minimum of two (2) bars may extend to rear of main frame from the main cage. X-bracing is allowed, including frame to frame under the driver.
7. Driver’s head must NOT protrude outside of the cage with helmet on.
8. Cutting of the floor is limited to cage placement and / or sub-frame connectors. Replacement must be made with a minimum of 20 gauge steel.
HOOD
1. Hoods and trunk lid must have quick release system (hood pins).
2. Hole may be cut in hood for air cleaner. Air cleaner can not extend more than four (4”) inches above hood. Hood scoops allowed.
3. Hood and trunk lid may be a single layer of material.
4. Hood must set flat on the deck, firewall or the dash and provide a seal.
FENDERS
Front and rear inner wheel wells may be removed.
FIREWALL
Firewall must be no further than 42 inches measured from the first bolt of the steering gear box. Holes in the firewalls must be covered with 20 gauge steel. For driver safety, the firewall must provide a seal with the hood, from the engine compartment.
FLOORS
Floorboards must remain in car. All rusted portions of the floorboard must be replaced with minimum 20 gauge steel. Floor Pan must remain stock from driver / passenger seat forward; therefore you may remove the floor pan behind the driver/passenger. However a rear firewall with minimum 20 gauge steel will be mandatory behind the driver/passenger area to ensure the safety of driver.
NERF BARS
1. One single nerf bar between the front and the rear wheels, on each side of the car is allowed. Maximum size 1½” x0.95”. This may be rectangular tubing, a maximum of 2” x1”. They are to be attached to the cage at the front and rear sections of the nerf bar. Maximum of two (2) supports allowed for the nerf bar. NO center supports are allowed on the nerf bar.
2. Must have rounded or tapered ends on front. NO sharp edges or corners. The rear of the bar may be squared off but must be capped. Nerf bars cannot extend more than 2½” from widest part of door. Any nerf bars in front of front tires or behind rear tires may be no wider than stock bumper. NO sharp edges allowed.
BUMPERS
1. Front OEM style bumpers or plastic aftermarket nose pieces are required to start heat and feature races.
2. Front bumper must be securely fastened. After market noses may use after market bumpers.
3. Bumpers or wrecker loops are required on front and rear, without the time delay of removing the hood. Two (2) hooks required front and back.
4. Bumpers must NOT extend wider than outside of rear tires.
WINDSHIELD BARS
A minimum of three (3) vertical windshield bars are required. Must be a minimum of 5/16” diameter steel, welded to the cage, and mounted in front of the driver.
SPOILER
Not to exceed 6” and must be attached to rear of trunk lid only. May not extend past the width of the car and may not have side-boards. Spoiler supports may not be taller than spoiler and may not be longer than 12 inches. Spoiler may be made of aluminum, steel, or Lexan. No Raised Body Lips, Side-Spoilers, or wings on any part of the car. No Window Spoilers.
INTERIOR
Any oil or transmission fluid coolers in the driver’s compartment must be configured to shield the driver in case of leaks. The cooler lines must be incased in tubing, rubber, or steel may be used. Sheet metal interiors OK
IGNITION SWITCH
1. All cars must have ignition switch clearly labeled.
2. The car must be equipped with a kill switch to be located within reach when standing outside of the car and easily accessible to emergency personnel.
BATTERY
1. Maximum of 1- 12 volt battery is allowed. Battery disconnect is required. Must be located behind the driver at deck height.
2. Must be securely mounted. NO batteries in driver’s compartment.
3. Battery may be charged by an alternator.
TIRES AND WHEELS:
1. Hoosier Asphalt take-offs must Durometer no less than 50 at the end of the race.
Goodyear Racing Tire #2951 Medium or Hard Compound allowed. No recaps and NO tire softeners.
2. Maximum 27.5 x 10 x 15.
3. Grooved and siped tires are allowed.
4. Steel wheels ONLY. Maximum wheel size allowed is 15” x10”.
5. One (1) beadlock is allowed. It is allowed on the right rear. Beadlock outer rings may be steel or aluminum.
6. 1” O.D. lug nuts are required. ⅝ lug studs are recommended.
7. Wheel spacers may be used with 5/8 studs only.
8. Wheel adapters will be allowed.
When choosing an OEM body, any year make or model to present date will be allowed with all steel body panels, roof, trunk, quarters, ect. Factory OEM aluminum hood permitted. No other aluminum or fiberglass body components. All cars must have factory or aftermarket nose piece. Aftermarket steel bodies will be allowed. Bodies must be mounted in stock location, or be proportionate to stock location when using an alternate body. All bodies stock or aftermarket are subject to approval by the technical inspector. Wheel base as measured at the tech pad will have minimum of 107.5”for metric chassis; 104" 1981 or earlier Camaro; 101" for Strut Chassis. Frame and/or wheel base may not be altered to change the original wheelbase. Ballast allowed, must be welded or bolted to the frame or roll cage structure with a minimum of two 1/2” bolts per 100 pounds. Minimum of two (2) bolts per piece/location. Bolted ballast must be painted white, and car number must be on ballast. NO liquid ballast.
WEIGHT: 3000 lbs. Minimum with driver after heat and feature event.
ENGINE SPECS
Any engine found to be illegal will include disqualification from that event and forfeiture of points, money and trophy. An illegal engine consists of any illegal parts found horizontally from the fan blade through the flywheel and vertically from the oil pan through the carburetor.
1. Maximum of 361 cubic inches. Ford, Dodge, and GM are allowed· Engine displacement formula for determining cubic inches is: bore x bore x .7854 x stroke x number of cylinders = cubic displacement. Any engine exceeding maximum allowable cubic inch displacement limit will cause disqualification.
2. Only cast iron OEM production blocks allowed. NO bowtie, Dart, Little M., Ect.
· GM chassis – GM block
· Ford chassis – Ford block
· Dodge chassis – Dodge block
3. ANY cast or steel crankshaft. After market fluid dampeners allowed
4. ANY steel connecting rod allowed. Aluminum rods PROHIBITED.
5. Pistons may be flat top (2) valve relief or OEM equivalent. NO domed pistons! Cast or forged OK. Any type pistons rings allowed. Must have a minimum of (2) compression rings and (2) oil ring. Floating wrist pins are allowed. NO titanium. Engine block permitted a minimum of .0 deck clearance. Piston must not hit straight edge held over cylinder while engine is cranked with starter.
6. Any camshaft: solid, hydraulic or roller. NO mushrooms. NO oversize lifters.
7. NO dry sump oil systems or vacuum pumps.
8. GM Sealed Crate 602 allowed.
CYLINDER HEADS
Note: Casting numbers must remain in cylinder head or head is illegal. Must retain manufacturer part # and intake port runner size. Also, NO o-ringing of block to mate head gasket with block and head.
1. Any 23 degree heads cast iron ONLY. NO more than 200cc on intake runners. 2.02 intakes and 1.60 exhaust valves maximum.
2. NO acid dipping, porting or polishing. Heads maybe flat or angle milled.
3. Screw in studs, pinning and guide plate allowed. NO titanium valves or components.
4. Any work done in the bowl area must be done with a 360 degree cut, with the valve guide as the center point.
5. Full rocker arms are allowed. Roller tip rocker arms are allowed. Polylocks are allowed. Stud girdles are allowed. NO Jessel or similar allowed.
6. Any breather/valve cover combination is allowed.
ENGINE LOCATION
1. Minimum engine height is 10” from the ground to the center of the crankshaft. This will be measured on the front of the crankshaft/pulley.
2. ENGINE SETBACK is #1 spark plug even with ball joint or forward for all cars except '82-'92 strut cars.
Note: '82 to '92 Camaros, Firebirds, Trans-Ams (strut cars) engine setback must be 14" from center of steering gear box slack adjustment bolt to center of first header bolt on driver’s side.
3. Side engine mounts may be 45 degree style, steel ONLY. Rear motor plates allowed.
4. Firewall setback is allowed.
CARBURETOR
1. Holley 2 Barrel #4412 only - 500 CFM maximum with 1-11/16 throttle bore maximum. Choke horn must be attached. List # must be legible on air horn. Circle track floats may be used. NO other alterations are allowed.
2. GASOLINE ONLY! Carb spacers/adapters allowed with #4412. Must NOT exceed 1¼” in thickness. NO injectors or pressure systems allowed. Tech Official’s may use any inspection procedure, including Test Gauges.
3. Cast iron or aluminum intake manifold - Note: No Brezensinki or special order intake allowed. NO tin intakes. NO tunnel rams. Any brand / style / size of air cleaner are allowed, but no kind of RAM air is allowed. NO coating, NO acid porting, NO porting, polishing or port machine or intake manifolds, intake manifold may not be altered in anyway. NO vacuum leaks between the intake valve and the top of the carburetor.
IGNITION
1. Stock or replacement ignitions ONLY.
2. HEI must remain in one unit. NO external coils allowed. MSD or any module may be used as long as it fits inside the cap with no alterations. Vacuum advance may be removed and the pick-up coil locked. Must be stock appearing housing and cap.
3. MSD Boxes (6A, 6AL, 6T ONLY) are allowed on Ford and Chrysler engines ONLY. Any after market or GM electronic boxes are NOT Allowed on GM. No electronic traction control devices
4. NO racing ignitions, crank triggers or magnetos.
EXHAUST SYSTEM
1. MUFFLERS ARE MANDATORY, and MAY NOT BE ALTERED. NO EXCEPTIONS. Mufflers Options: LOBACK MUFFLERS or TWISTER F-SERIES AUGER MUFFLERS or SPEEDWAY UN-ALTERED AUGER INSERT. TURN DOWNS REQUIRED ON ALL EXHAUST PIPES FACING THE GROUND, NO EXHAUST MAY EXIT THE SIDE OF CAR- MUST BE ON CAR PRIOR TO ENTERING TRACK SURFACE. Both Mufflers must be in place prior to hot laps, heat and feature races or car will be disqualified for the night, forfeiting all winnings and will not be able to finish the race. Note: There will be no grace periods given on mufflers.
2. Cast iron exhaust manifold is allowed. Street headers are allowed and Schoenfeld headers are allowed. Maximum 3½ OD. No 180 degree or over the top of engine exhaust allowed
3. Header must be under chassis style, exhaust must run past the front edge of the Driver seat and turn down.
RADIATOR
1. Only one (1) radiator is allowed. Radiator must be mounted in the stock location.
2. Radiator may be aluminum.
3. Racing radiator cap is allowed.
4. Must mount radiator overflow through the frame and exit the frame under the car just behind the right front wheel.
5. NO electric cooling fans.
FUEL
1. GASOLINE ONLY. Racing gas is allowed. NO ADDITIVES. NO ALCOHOL. NO NITROUS.
FUEL PUMPS
1. NO electric fuel pumps. ONLY stock mount push rod activated pumps are allowed.
2. Holley and Carter style are allowed.
FUEL TANKS
1. Maximum 22 gallon fuel cell. Must be in can.
2. Fuel cells ONLY. Must be securely mounted inside trunk area ONLY, must be between frame rails and must be totally enclosed from the driver compartment. A minimum of two (2) fuel cell straps 2” x ⅛” required to secure fuel cell. Fuel cell with a rollover valve is required.
3. Fuel cell protection bar is required. Must be a minimum of 1½” x .095”. It must protect the fuel cell from the rear. It must be as low as the fuel cell, and extend from side to side as wide as the fuel cell. It is recommended that this bar be attached to the frame, NOT the bumper. If the fuel cell protection is not present the car will NOT Be allowed to continue racing. The fuel cell protection bar must be attached to the frame.
TRANSMISSION
1. Any OEM automatic transmission is allowed. Unit must be stock and have a working torque converter. NO direct drives, valved pumps or bleeder valve bodies. All forward and reverse gears must be in working order, except Powerglide. Powerglide is allowed either or both forward gears, with neutral and reverse in working order.
2. Standard transmissions must be stock, with all gears working, with minimum of 10.5” clutch, pressure plate and full size stock flywheel. Mini-Clutch allowed. NO direct drives. Standard may use stock aluminum flywheel.
3. All standards must have bell housing made of ¼” thick steel and cover 180 degrees over the sides and top of the clutch assembly.
4. NO 2, 5 or 6 speed manual transmission. NO overdrives or overdrive units. NO Bert or Brinn style transmissions allowed..
5. NO ram couplers.
6. Quick-change transmissions or transmission adapters for gear change are NOT allowed.
7. Car must be self-starting and having working neutral, reverse and forward.
8. Transmission coolers are allowed. If exposed to driver, it must be shielded in case of leaks.
9. Automatic Transmissions must have a scatter shield, minimum 3/16” x 4” wide steel. May be attached to the bell housing or the floor pan.
DRIVESHAFTS
Driveshaft must be steel, and must be painted white. Must have a steel driveshaft loop (360 degree) connected to the frame within 6” of the front driveshaft u-joint. Minimum of 2” x ¼” or minimum of 1” round. NO chain loops allowed as front loops.
REARENDS
1. After-market axles, studs, and mini-spools are allowed. NO posi-trac, or limited slip style rearends. Rearend axles must be locked together.
2. 9” Ford allowed.
3. Any gear ratio may be used if no alteration to housing is required.
4. Bolt pattern on the axle / drums may be changed.
5. Wheel adapters are allowed.
6. Rear end may be locked by welding spider gears, using a mini-spool or with a full spool. NO aluminum.
7. NO quick change rearends.
8. Floater Style rearend is allowed
9. Disc brakes are allowed. Steel components ONLY. Single piston ONLY.
BRAKES
1. All components at wheel must be stock OEM. Except disc must be steel.
2. Dual master cylinder after market brake pedal is allowed.
3. Rear brakes may be disc.
4. An adjustable proportioning valve may be used. May not be in driver’s compartment.
5. Minimum of three (3) working brakes is required. If using (4) brakes a shut off valve may be used for the fourth brake.
6. If using three (3) brakes, the fourth brake assembly need not be present. If the fourth is the right front, the caliper and the rotor may be removed. Spindle to remain unaltered.
7. Cooling holes may not be drilled in any brake component.
STEERING
1. Quick release steering wheel is mandatory.
2. Quick steer is optional. NO chains or sprockets are allowed in the steering system. D & M OK.
3. Steering left of drive train ONLY.
4. Bump steer cannot be adjusted. Center link, inner tie-rods, outer tie-rods or sleeves cannot be altered.
5. Power steering is allowed. After market power steering may be used.
6. NO rack and pinion steering. Stock OEM steering box must be used.
SUSPENSION
1. Upper control arm brackets may be moved for caster and camber adjustment. Must use stock OEM upper control arms and brackets or any after-market non-adjustable tubular A-Arm.
2. Upper and lower control arm bushings may be after market and may use steel bushings, no mono-ball bushings.
3. Lower control arms and brackets must be stock OEM.
4. Lowers control arms must match make, model and year of frame.
5. If used, sway bars and brackets must remain stock. Bushings may be after market.
6. Racing springs are allowed. Adjustable spring buckets are allowed. Jack bolts are allowed.
7. Spindles and rotors must remain stock for year, make and model. Spindle may be reamed for bigger ball joints. NO grinding or lightened parts. ⅝” studs are allowed in any bolt patterns.
8. Tie-rods, center link pitman arm, steering box and idler arms must be stock for year, make and model.
9. Larger size press-in ball joints may be used. NO mono-ball joints allowed. May be welded.
10. If rear coil spring car, lower rear end trailing arm brackets maybe moved for pinion adjustment. Metric cars must retain all four (4) links, and Lower trailing arms must match year, make and model (OEM) and may use steel bushings. Upper rear trailing arms may be adjustable. NO suspension parts may be altered or lightened on leaf spring cars. Must remain stock for year, make and model of car. Must be Ford on Ford, GM on GM, Dodge on Dodge. No After-Market suspension parts, such as panhard bars, j-bars, hard bars, pull-bars, etc.
11. Ford 9” rearend is allowed on any make and model.
12. Wheel adapters are allowed with 5/8 studs.
13. Non-Adjustable lowering blocks allowed, two (2”) inches max. Sliders or shackles on leaf springs maybe adjustable.
14. After market steel leaf and coil springs are allowed. Composite Leaf Springs are allowed. NO coil overs.
15. Rear coil springs ONLY, may use maximum two (2”) inch spacer welded to frame or rear housing. Adjustable coil spring spacers allowed, front and rear.
16. Aluminum suspension parts are NOT allowed, even if it fits year, make and model.
Strut Chassis Specific:
1. Front Suspension: Strut type car must retain strut suspension. May run braces to side of strut tower. May place plate on top of strut tower and run brace from plate to cage. All strut mount cars must use struts that bolt in stock position. No alterations to mounts, except the afore mentioned bracing. Aftermarket racing shocks allowed. Racing springs allowed. Adjustable tie rods allowed.
2. Rear Suspension: Stock torque arm on '82 - '92 Camaros, Firebirds, and Trans Ams must be non-adjustable and mounted solid, level with no flex plates or any other device to let mount flex. Front of arm may run through a rubber bushing with rod sticking straight forward through bushing. No heim ends on arm allowed. Torque may be reinforced without any alterations to length and location. Non-adjustable pan-hard bar must remain completely stock and in stock holes and in stock location.
3. Engine Setback: '82 to '92 Camaros, Firebirds, Trans-Ams (strut cars) engine setback must be 14" from center of steering gear box slack adjustment bolt to center of first header bolt on driver’s side.
SHOCKS
1. Shocks must be steel, may be after market.
2. Front: any steel shock and may be relocated.
3. Rear: any steel shock and may be relocated.
4. One shock per wheel.
5. NO more than four (4) shocks on car.
FRAME
1. Complete and unaltered OEM Frame (front suspension to rear suspension) as per OEM specifications is required. NO complete or partial tube chassis. Can plate frame.
2. On 1978 – 1987 metric frames the outside of the frame may be altered for right front tire clearance.
3. Frame or brackets can not be cut, bent, or altered to change suspension.
4. Uni-bodies and Strut Cars must be tied together from front sub-frame to rear sub-frame.
ROLL CAGE
1. Roll cage material must be a minimum of 1½” x .095 wall thickness round steel tubing. Must be box type cage, four (4) uprights connecting tubing on roll cage. Roll cage must have rear supports going down to the frame and may extend into the trunk area, and diagonal tubing is required to keep the cage from moving from side to side. Roll cage must have minimum three (3) door bars ( 1½” x .095). The center of the roll cage and driver's seat may be no further back than the third (3rd) body mount bushing frame hole for metric frames. All welds must be complete and pass safety inspection by tech personnel.
2. NO iron or square tubing allowed in main section of the cage.
3. NO brazing or soldering.
4. NO aluminum cages allowed.
5. A minimum of two (2) bars, (engine bay bars) one (1) per side, may extend from the main roll cage to points on the main frame in front of the upper control arms, These bars may have three (3) additional braces per side to the main frame.
6. A minimum of two (2) bars may extend to rear of main frame from the main cage. X-bracing is allowed, including frame to frame under the driver.
7. Driver’s head must NOT protrude outside of the cage with helmet on.
8. Cutting of the floor is limited to cage placement and / or sub-frame connectors. Replacement must be made with a minimum of 20 gauge steel.
HOOD
1. Hoods and trunk lid must have quick release system (hood pins).
2. Hole may be cut in hood for air cleaner. Air cleaner can not extend more than four (4”) inches above hood. Hood scoops allowed.
3. Hood and trunk lid may be a single layer of material.
4. Hood must set flat on the deck, firewall or the dash and provide a seal.
FENDERS
Front and rear inner wheel wells may be removed.
FIREWALL
Firewall must be no further than 42 inches measured from the first bolt of the steering gear box. Holes in the firewalls must be covered with 20 gauge steel. For driver safety, the firewall must provide a seal with the hood, from the engine compartment.
FLOORS
Floorboards must remain in car. All rusted portions of the floorboard must be replaced with minimum 20 gauge steel. Floor Pan must remain stock from driver / passenger seat forward; therefore you may remove the floor pan behind the driver/passenger. However a rear firewall with minimum 20 gauge steel will be mandatory behind the driver/passenger area to ensure the safety of driver.
NERF BARS
1. One single nerf bar between the front and the rear wheels, on each side of the car is allowed. Maximum size 1½” x0.95”. This may be rectangular tubing, a maximum of 2” x1”. They are to be attached to the cage at the front and rear sections of the nerf bar. Maximum of two (2) supports allowed for the nerf bar. NO center supports are allowed on the nerf bar.
2. Must have rounded or tapered ends on front. NO sharp edges or corners. The rear of the bar may be squared off but must be capped. Nerf bars cannot extend more than 2½” from widest part of door. Any nerf bars in front of front tires or behind rear tires may be no wider than stock bumper. NO sharp edges allowed.
BUMPERS
1. Front OEM style bumpers or plastic aftermarket nose pieces are required to start heat and feature races.
2. Front bumper must be securely fastened. After market noses may use after market bumpers.
3. Bumpers or wrecker loops are required on front and rear, without the time delay of removing the hood. Two (2) hooks required front and back.
4. Bumpers must NOT extend wider than outside of rear tires.
WINDSHIELD BARS
A minimum of three (3) vertical windshield bars are required. Must be a minimum of 5/16” diameter steel, welded to the cage, and mounted in front of the driver.
SPOILER
Not to exceed 6” and must be attached to rear of trunk lid only. May not extend past the width of the car and may not have side-boards. Spoiler supports may not be taller than spoiler and may not be longer than 12 inches. Spoiler may be made of aluminum, steel, or Lexan. No Raised Body Lips, Side-Spoilers, or wings on any part of the car. No Window Spoilers.
INTERIOR
Any oil or transmission fluid coolers in the driver’s compartment must be configured to shield the driver in case of leaks. The cooler lines must be incased in tubing, rubber, or steel may be used. Sheet metal interiors OK
IGNITION SWITCH
1. All cars must have ignition switch clearly labeled.
2. The car must be equipped with a kill switch to be located within reach when standing outside of the car and easily accessible to emergency personnel.
BATTERY
1. Maximum of 1- 12 volt battery is allowed. Battery disconnect is required. Must be located behind the driver at deck height.
2. Must be securely mounted. NO batteries in driver’s compartment.
3. Battery may be charged by an alternator.
TIRES AND WHEELS:
1. Hoosier Asphalt take-offs must Durometer no less than 50 at the end of the race.
Goodyear Racing Tire #2951 Medium or Hard Compound allowed. No recaps and NO tire softeners.
2. Maximum 27.5 x 10 x 15.
3. Grooved and siped tires are allowed.
4. Steel wheels ONLY. Maximum wheel size allowed is 15” x10”.
5. One (1) beadlock is allowed. It is allowed on the right rear. Beadlock outer rings may be steel or aluminum.
6. 1” O.D. lug nuts are required. ⅝ lug studs are recommended.
7. Wheel spacers may be used with 5/8 studs only.
8. Wheel adapters will be allowed.
2013 HOBBY STOCK RULES
CHASSIS:
Chassis must be an American made passenger car only. Metric framed GM or Ford cars are allowed. Nova chassis are allowed. S-10 and Ford Ranger Bodies are allowed on metric frame. Station Wagons must be metric framed only with enclosed rear compartment, no other makes or models will be accepted. Station Wagons cannot enclose side windows. Frame must remain unaltered in wheelbase and width as defined by OEM original specifications. Exception to the rear: frame may be altered no less than 1” behind original rear upper shock mounts.1978-1987 metric chassis may be altered for clearance of right front tire only, with maximum alteration not to exceed one-half inch (.5”). Uni-body sub-frames may be tied together. No Camaro, Cadillac, Town Cars, Mustang or Corvette Chassis allowed. No commercial vehicles, convertibles or sports cars. Altering original frame wheelbase is not allowed. Minimum wheel base is 108” per OEM specifications for stock factory production. Allowance to 107.5” for caster adjustment will be allowed at the technical inspection pad. No tubed chassis.
WEIGHT: Minimum weight is 3200 pounds with driver after race.
CARBURETOR:
Rochester Quadrajet, Edelbrock Quadrajet or Holley #4412 two barrel is allowed. Number must be legible on air horn. Choke horn must be attached. Circle track floats may be used. Fords must run Motorcraft 4 barrel or may run Holley #4412. No machine work on carburetor. Holley #4412 carburetors may be mounted on cast iron 4 barrel intake with an adaptor only, no spacers allowed. No other alterations are allowed. Only one carburetor allowed on engine. No other carburetors are allowed. No spacer or adapter allowed on Quadrajet Carburetor. No injectors or pressure systems allowed.
CYLINDER HEADS: (Compression Rule 175 psi with 5 starter hits.)
OEM cylinder heads only with a Minimum 68cc chamber size. No closed chamber heads except 305 heads on 305 engine only. No partially closed chamber heads. No 461 or 462 heads. Open chamber heads only. No Vortec heads. Racecars using GM engines must run 350 heads on 350 engines, and 305 heads on 305 engines. No aluminum heads, no special order heads or factory special order heads. Any open chamber cast iron steel OEM factory production straight plug head is allowed that meets the described requirements. All GM heads are limited to 1.94” intake valves and 1.50” exhaust valves. Heads may be flat milled for surfacing reasons only, no angle milling allowed.
Studs may be pinned or screwed in. Push rod guide plates are allowed. Any single valve spring with dampener is legal, no double or triple springs allowed.
No porting, polishing, port matching or coatings of any type allowed. No aluminum or titanium components are allowed.
Any work done in the bowl area must be done with a 360 degree cut, with the valve guide as the center point.
Full roller rocker arms and roller tip rocker arms are not allowed. Poly-locks are allowed. Stud girdles are not allowed.
ENGINE:
May be in stock location or #1 spark plug can be even with ball-joint or forward. #1 spark plug may not extend behind upper ball joint on any car.
Cast iron OEM blocks only. After-market steel stock type engine mounts are allowed. No machining in lifter valley (except for oil flow drain openings) or in lifter bores.
Engine components must be stock. No Chevrolet Bowtie, Ford SVO or Mopar Performance blocks. Stock stroke must be maintained within .002”. No performance parts. Stock appearing rods only. Rods should be 5.7 inch only. Stroke must equal 3.48. After-market rod bolts may be used. OEM replacement-style pistons with two (2) or four (4) equal valve relief. Valve relief pocket must be symmetrical in size as produced by manufacturer. No modifications to pistions are allowed. Flat top pistons or dish pistons only, no domed pistons. No total seal type rings are allowed. Maximum cubic inch displacement allowed is 364 c.i.d. Boring to a maximum of .060” over stock OEM bore is allowed.
OEM or stock replacement steel or cast crankshaft. All crankshaft must have casting number, casting letters, or part number for identification. Balancing okay. No splayed main caps. Crankshaft cannot be lightened (no aerowing, bullnose, knife edge, undercut or drilling of second or third rod throws allowed).
Camshaft and lifters must be hydraulic with a maximum of 450 lift. Measured at the valve. Tech Clarification: In order to maintain a 450 lift on your camshaft you must not exceed a camshaft lobe of 0.280 (thousandths) with 1.6 rocker arms, which will measure a 450 lift. Also, a camshaft lobe of 0.300 (thousandths) with 1.5 Rocker Arms will measure a 450 lift. Be advised that a camshaft lobe of 0.300 (thousandths) with 1.6 Rocker Arms will measure a 480 lift at the valve, which will be deemed illegal. Know what your camshaft and rocker arm combination produces in order to not exceed a 450 lift measured at the valve.
Stock style rockers arms only, no full rollers, and no roller tips. No stud girdles.
A stock oil pan or a claimer style oil pan is allowed. Oiling must be complete wet sump. No dry sump systems allowed. Oil Pan Site Plug between the 2nd and 3rd holes from the front of the motor on the drivers side is recommended to avoid pan removal Tech. No obstructions inside the pan.
Intake must be cast iron. No high-rise intakes, No marine intakes, No Brzezinski intakes, and no aluminum intakes. No porting, polishing, port matching, acid porting, acid treatments or coatings of any kind. .
Any brand, style or size air cleaner is allowed, but no type of ram air or forced air induction will be allowed. Any valve cover combination is allowed.
Cast iron water pump is required. Pulleys may be aluminum after-market. Fan must be steel and attached to water pump. Fan spacers may be used. An additional electric cooling fan may be used to assist cooling under yellow flag periods, but all stock fan, pulley and belt components must remain installed.
After-market harmonic balancer is allowed.
FORDS: 289,302, or 351 blocks only with Flat Top pistons. Any OEM Ford head is allowed. No aftermarket or Boss heads allowed. Maximum valve size is 1.94 intake and 1.60 exhaust.
2013 Engine Option B: CRATE ENGINE: Must use unaltered sealed GM #88958602 or #19258602 crate engine. Upon inspection, any different, altered or missing GM seal bolts will result in disqualification, GM seal bolt exception is IMCA/Gator approved and issued cable-lock rebuild system, and oil pan may be replaced. If running 602 Crate Option, #4412 Carburator mandatory.
IGNITION: Ignition must remain and be completely stock OEM replacement parts only. Stock HEI ignition is allowed. No MSD modules, no MSD systems or any after-market or GM ignition boxes allowed. Aftermarket starter is O.K.
EXHAUST SYSTEM:
MUFFLERS ARE MANDATORY, NO ALTERING, NO EXCEPTIONS if running Headers. Mufflers Mandatory: LOBACK MUFFLERS or TWISTER F-SERIES MUFFLERS or Un-altered AUGER STYLE SPEEDWAY INSERT. TURN DOWNS REQUIRED ON ALL CARS MUST FACE THE GROUND, NO EXHAUST SHOULD EXIT THE SIDE OF CAR- MUST BE ON CAR AT ALL TIMES AT TRACK. Both Mufflers must be in place prior to the hot laps, heat and feature races or car will be disqualified for the night, forfeiting all winnings and will not be able to finish the race. Must use under chassis header, that meets these specifications with 1.625-inch tubes (1-5/8 inch tubes) and 3-inch collector.
Note: There will be NO Grace Periods given on mufflers at Gator!
No 180 degree, shorty or mini headers. Stock cast iron exhaust manifolds allowed. No porting, polishing, acid treatment or coatings. No Corvette-style (2.5” port exhaust) stock exhaust manifolds.
All Exhaust pipes must extend past driver seat.
RADIATOR: Only one radiator must be in stock location. No cutting of hood for clearance.
Aluminum radiator is allowed. Racing radiator cap is allowed.
FUEL: Gasoline only. Racing fuel allowed. No additives allowed. No alcohol.
FUEL PUMP: Must be stock OEM style fuel pump. Carter and Holley manual styles are allowed.
FUEL CELL: Must be securely mounted to frame in trunk of car between the rear frame rails. Fuel Cell in a Steel Can is required if cell is dropped down between frame rails. A Plastic Fuel Cell may be used only if complete floor pan is in place. Fuel cell is required, maximum capacity of 22 gallons.
DRIVETRAIN - TRANSMISSION:
Any OEM automatic transmission is allowed. Unit must be stock and have a full working torque converter, minimum of 10". Powerglides may have 10” torque converter. No direct drives, valved pumps or bleeder style valve bodies. All forward, neutral and reverse gears must be in working order for all automatics except Powerglides. Powerglides are allowed to have either one or both forward gears, with neutral and reverse in working order.
Standard transmissions must be OEM stock cast iron three or four speed allowed, with all gears in working order and a minimum of 10.5” clutch, pressure plate and full size stock flywheel. No mini-clutches, Ram couplers or direct drives. Standard transmissions may not use aluminum flywheel of any size.
All standard transmissions must have bell housing made of 1/4” thick steel and must cover 180 degrees over the sides and top of the clutch assembly (also referred to as a blow-proof bell housing).
No 5-speed or 6-speed standard transmissions, no overdrive transmissions or overdrive units. No Bert, Brinn or internal clutch style transmissions allowed. No ram couplers allowed. Quick-change transmissions or transmission adapters for gear change are not allowed.
Car must be self-starting and have working neutral, reverse and ALL forward gears. (ex. 3-speed trans. must have 3 forward working gears.)
Transmission fluid coolers are allowed, but may not be mounted exposed in drivers compartment.
DRIVESHAFT: Driveshaft must be steel and must be painted white or silver. Driveshaft must have a steel driveshaft loop (360 degrees) connected to the frame located within 6” of the front driveshaft u-joint. Minimum size of driveshaft loop is 2” x 1/4” or minimum 1” round tubing. No chain loops are allowed as driveshaft loops.
REAR-END: Rear-end must be OEM stock for year, make and model. Any gear ratio allowed as long as no altering of housing is required to allow for installation. (Note: 8.5 GM Rear-end may replace 7.5 GM Rear-end for durability purpose.)
Axles must be locked together at all times with mini-spool or welded. No posi-trac, limited slip, Detroit locker or full spool allowed.
BRAKES: After-market racing brake pedal and single racing master cylinder are allowed. No aluminum brake calipers or suspension braking components. Cars must have a minimum of three (3) functioning brakes. If four brakes are installed, a cut-off valve may be used on one of the brakes, which may not be in the driver's compartment. Adjustable proportioning valves are not allowed. If using three brakes, the fourth brake components need not be present other than rotor, which you can remove outer portion. Rear Disc brakes are allowed with steel components only and with only a single piston caliper.
STEERING: Quick steer boxes of any type or style allowed. Complete OEM stock steering system for year, make and model, from the steering box to the spindles, including steering gear box must be used. Cast iron steering box only. After-market steering shaft and quick release steering wheel is allowed. Steering wheel spacer allowed to a maximum of 3”thick.Any stock OEM power steering pump allowed, no aftermarket power steering pumps.
SUSPENSION: No modifying of the suspension is allowed. Exception: Upper control arm brackets may be moved for caster and camber adjustment. Cannot move lower A-frames. OEM suspension parts only. No cutting, welding or bending of frame to accommodate suspension changes. Suspension parts must remain absolutely stock for that year, make and model of car. This includes spindles, rotors, upper control arms, lower control arms, ball joints, tie rods, tie rod sleeves, center link, pitman arm, idler arm, steering box and trailing arms. All upper/lower trailing arm & upper/lower control arm bushings must be present. Front upper/lower control arms bushings may be replaced with steel after-market. No mono-ball, bearing type or offset bushings. Rear upper/lower trailing arms may use aftermarket rubber bushings and cannot be drilled. Bolt on Spindle Savers are allowed. Upper Control Arm can be strengthened with a maximum of 3/8 inch cold roll or rebar along the outer lip within the groove. Steel IMCA Stock Car A-Arm part # 91034394 left/right may be used.
SPRINGS: Racing springs may be used. Rear coil spring must not extend through the stock spring bucket and the maximum spring length is 13 inches. Adjustable spring spacers are allowed on front and rear, no jack-bolts. Steel leaf springs only, may be after market, may use lowering blocks. Any steel non-jack bolt type leaf spring shackles are allowed, including multi-hole, no sliders.
SHOCKS: Shocks must be steel OEM replacement shocks. Shocks must be mounted using the OEM stock mounts in the factory installed location. No heims on shocks allowed. No shock adapters.
ROLL CAGE: Roll bars must be constructed of 1.5” x .095” steel tubing minimum.
Main roll bar and halo must be a minimum of 1” higher than the driver’s helmet. Minimum of three (3) door bars on the driver side and a minimum of two (2) door bars on the passenger side. A single bay bar per side is allowed, and may not extend past the idler arm or the steering box. Two vertical bars may be attached to each bay bar to the frame. Maximum size is 1.5” inch O.D., .095” tubing. The center of the roll cage and driver's seat may be no further back than the third (3rd) body mount bushing frame hole for metric frames, and no less than 25" inches forward of rear axle centerline on all other cars. All roll cage welds must be complete and pass safety inspection by tech officials. Floor pan may be cut for cage and sub- frame connectors, but must be replaced by a minimum of 20 gauge steel. X-bracing under the driver (frame-to-frame) is allowed.
NERF BARS: A single nerf bar is allowed on each side. Maximum size 1.5” x .095”. May be attached to main cage only at the front and rear section of the nerf bar. This means only two (2) attachment points are allowed. No open tubing allowed. Tubing must be capped or rounded with no sharp edges. No nerf bars are allowed on the rear outside quarter panel area. Nerf bars may not extend outside of tires.
WINDSHIELD BARS: A minimum of three vertical windshield bars are required. Must be a minimum of 3/8” diameter steel and mounted in front of the driver.
TIRES: Any brand DOT radial tire is allowed. Allowable sizes are 225/60, 235/60, 245/60, 255/60, 275/60, also may run American Racer KK704 or Hoosier IMCA stamped G60. Grooved and siped tires are allowed. No softening of tires.
WHEELS: Any 8” width steel wheel. Any offset from 2” through 5” is allowed. After-market 5/8” lug studs are recommended. 1” diameter lug nuts are required. Wheel spacers are not allowed with stock studs. Wheel adapters are not allowed. No screws allowed. A protective outer ring is allowed to be welded to the outer lip of the wheel with a maximum size .5” O.D., round or square is allowed. A flat bar of 1.25” may also be used. Bead lock placed on right rear only.
INTERIOR: Any oil or transmission fluid coolers in the driver’s compartment must be configured to shield the driver in case of leaks. The cooler lines must be encased in tubing, rubber or steel may be used.
BODIES:
Any steel factory style OEM body is permitted, and must have factory hood, truck, roof, fenders, doors, and quarter panels. Bodies must remain in stock location, or be proportionate to stock location when using an alternate body. Frame must remain square and to factory specs. No Roof Rake. Complete bumper-to-bumper steel body must be retained. Note:1981-1988 Performance Bodies street stock Monte Carlo steel body and Five Star Race Car Body Package #601-101S are allowed. No Camaro Bodies. No Late-Model, No Wide-Bodies, No Aluminum Body Components.
Enclosure required at rear bumper to trunk lid. Fuel Cell should not be visible.
Doors must be welded or bolted shut. Doors may be gutted for cage installation. All glass, plastic, fiberglass and trim must be removed from racecar. Upholstery and plastic portion of the dash must be completely removed. No gutting of steel interior except for hood and trunk. (See Floor for gutting Exceptions) A-Posts may be trimmed and cleaned up to allow for engine set back, but must be reinforced. Window Post may not be removed.
FENDERS: Fenders may be cut for tire clearance only and fender must be within 7” of the tire. Front inside fender wells must be removed. Rear Fender wells may be removed.
FIREWALL: Firewalls may be stock or made of 20 gauge steel. Firewall must be complete, from fender to fender, top to bottom, deck to floor pan, all holes closed with 20 ga. steel. Firewall may not be further than 40 inch back from the first frame mounting bolt (closest to the front bumper) of the steering box. The firewall may be rolled back to allow for distributor clearance not more than 6 inches. Note: If driver's compartment is enclosed, and decking is in place, the rear firewall may be removed and replaced no less than 25" inches forward of rear axle centerline on all makes and models, with a minimum 20 gauge steel behind the driver /passenger area to ensure the safety of driver.
FLOOR: Floorboards must remain in car. All rusted portions of the floorboard must be replaced with minimum 20 gauge steel. The floor pan must remain stock from front firewall to no less than 25" inches forward of rear axle centerline on all makes and models, and must fully extend from left rocker panel to right rocker panel.
BUMPERS: Stock OEM bumpers are required. Option: After-market plastic bumpers may replace stock OEM bumber. A maximum of 2 in. x 3 in. rectangular tubing or 1 ¾ in. round tubing should be used to support plastic bumper. Bumper loops are required to protect radiator, fuel tank and to be used by wrecker for tow hooks. Maximum 1.5” x .095” steel tubing, maximum 8” tall and not wider than the frame and mounted to the frame or bumper only.
HOOD: Steel Hood/Trunk Required, No Aluminum. Hood may be hulled and must remain in place at all times. Hood must be pinned. No holes allowed in the hood: therefore no working hood scoops. Any holes in hood must be covered by steel. Quick release hood pins and rear deck pins are required. Hood must make a complete seal dashboard and/or firewall. The engine compartment must not be visible from driver’s seat.
SPOILER: Not to exceed 6” and must be attached to rear of trunk lid only. May not extend past the width of the car. Spoiler supports may not be taller than spoiler and may not be longer than 12 inches. Spoiler may be made of aluminum, steel, or Lexan. No Raised Body Lips, Side-Spoilers, or wings on any part of the car. No Window Spoilers.
IGNITION SWITCH: All cars must have ignition switch clearly labeled. The car must be equipped with a kill switch to be located within reach when standing outside of the car and easily accessible to emergency personnel.
BATTERY : Only one twelve volt (12v) battery allowed. Battery and battery box must be securely mounted to car and safely sealed. Battery must be completely encased in an enclosed battery box.
DRIVER LOCATION: Driver must be located in the original OEM seat location on the left side of the vehicle only. No back seat mounting of driver’s seat.
REVIEW SEAT, DRIVER'S SAFETY, WINDOW NET, & SCORING RULES ABOVE.
CHASSIS:
Chassis must be an American made passenger car only. Metric framed GM or Ford cars are allowed. Nova chassis are allowed. S-10 and Ford Ranger Bodies are allowed on metric frame. Station Wagons must be metric framed only with enclosed rear compartment, no other makes or models will be accepted. Station Wagons cannot enclose side windows. Frame must remain unaltered in wheelbase and width as defined by OEM original specifications. Exception to the rear: frame may be altered no less than 1” behind original rear upper shock mounts.1978-1987 metric chassis may be altered for clearance of right front tire only, with maximum alteration not to exceed one-half inch (.5”). Uni-body sub-frames may be tied together. No Camaro, Cadillac, Town Cars, Mustang or Corvette Chassis allowed. No commercial vehicles, convertibles or sports cars. Altering original frame wheelbase is not allowed. Minimum wheel base is 108” per OEM specifications for stock factory production. Allowance to 107.5” for caster adjustment will be allowed at the technical inspection pad. No tubed chassis.
WEIGHT: Minimum weight is 3200 pounds with driver after race.
CARBURETOR:
Rochester Quadrajet, Edelbrock Quadrajet or Holley #4412 two barrel is allowed. Number must be legible on air horn. Choke horn must be attached. Circle track floats may be used. Fords must run Motorcraft 4 barrel or may run Holley #4412. No machine work on carburetor. Holley #4412 carburetors may be mounted on cast iron 4 barrel intake with an adaptor only, no spacers allowed. No other alterations are allowed. Only one carburetor allowed on engine. No other carburetors are allowed. No spacer or adapter allowed on Quadrajet Carburetor. No injectors or pressure systems allowed.
CYLINDER HEADS: (Compression Rule 175 psi with 5 starter hits.)
OEM cylinder heads only with a Minimum 68cc chamber size. No closed chamber heads except 305 heads on 305 engine only. No partially closed chamber heads. No 461 or 462 heads. Open chamber heads only. No Vortec heads. Racecars using GM engines must run 350 heads on 350 engines, and 305 heads on 305 engines. No aluminum heads, no special order heads or factory special order heads. Any open chamber cast iron steel OEM factory production straight plug head is allowed that meets the described requirements. All GM heads are limited to 1.94” intake valves and 1.50” exhaust valves. Heads may be flat milled for surfacing reasons only, no angle milling allowed.
Studs may be pinned or screwed in. Push rod guide plates are allowed. Any single valve spring with dampener is legal, no double or triple springs allowed.
No porting, polishing, port matching or coatings of any type allowed. No aluminum or titanium components are allowed.
Any work done in the bowl area must be done with a 360 degree cut, with the valve guide as the center point.
Full roller rocker arms and roller tip rocker arms are not allowed. Poly-locks are allowed. Stud girdles are not allowed.
ENGINE:
May be in stock location or #1 spark plug can be even with ball-joint or forward. #1 spark plug may not extend behind upper ball joint on any car.
Cast iron OEM blocks only. After-market steel stock type engine mounts are allowed. No machining in lifter valley (except for oil flow drain openings) or in lifter bores.
Engine components must be stock. No Chevrolet Bowtie, Ford SVO or Mopar Performance blocks. Stock stroke must be maintained within .002”. No performance parts. Stock appearing rods only. Rods should be 5.7 inch only. Stroke must equal 3.48. After-market rod bolts may be used. OEM replacement-style pistons with two (2) or four (4) equal valve relief. Valve relief pocket must be symmetrical in size as produced by manufacturer. No modifications to pistions are allowed. Flat top pistons or dish pistons only, no domed pistons. No total seal type rings are allowed. Maximum cubic inch displacement allowed is 364 c.i.d. Boring to a maximum of .060” over stock OEM bore is allowed.
OEM or stock replacement steel or cast crankshaft. All crankshaft must have casting number, casting letters, or part number for identification. Balancing okay. No splayed main caps. Crankshaft cannot be lightened (no aerowing, bullnose, knife edge, undercut or drilling of second or third rod throws allowed).
Camshaft and lifters must be hydraulic with a maximum of 450 lift. Measured at the valve. Tech Clarification: In order to maintain a 450 lift on your camshaft you must not exceed a camshaft lobe of 0.280 (thousandths) with 1.6 rocker arms, which will measure a 450 lift. Also, a camshaft lobe of 0.300 (thousandths) with 1.5 Rocker Arms will measure a 450 lift. Be advised that a camshaft lobe of 0.300 (thousandths) with 1.6 Rocker Arms will measure a 480 lift at the valve, which will be deemed illegal. Know what your camshaft and rocker arm combination produces in order to not exceed a 450 lift measured at the valve.
Stock style rockers arms only, no full rollers, and no roller tips. No stud girdles.
A stock oil pan or a claimer style oil pan is allowed. Oiling must be complete wet sump. No dry sump systems allowed. Oil Pan Site Plug between the 2nd and 3rd holes from the front of the motor on the drivers side is recommended to avoid pan removal Tech. No obstructions inside the pan.
Intake must be cast iron. No high-rise intakes, No marine intakes, No Brzezinski intakes, and no aluminum intakes. No porting, polishing, port matching, acid porting, acid treatments or coatings of any kind. .
Any brand, style or size air cleaner is allowed, but no type of ram air or forced air induction will be allowed. Any valve cover combination is allowed.
Cast iron water pump is required. Pulleys may be aluminum after-market. Fan must be steel and attached to water pump. Fan spacers may be used. An additional electric cooling fan may be used to assist cooling under yellow flag periods, but all stock fan, pulley and belt components must remain installed.
After-market harmonic balancer is allowed.
FORDS: 289,302, or 351 blocks only with Flat Top pistons. Any OEM Ford head is allowed. No aftermarket or Boss heads allowed. Maximum valve size is 1.94 intake and 1.60 exhaust.
2013 Engine Option B: CRATE ENGINE: Must use unaltered sealed GM #88958602 or #19258602 crate engine. Upon inspection, any different, altered or missing GM seal bolts will result in disqualification, GM seal bolt exception is IMCA/Gator approved and issued cable-lock rebuild system, and oil pan may be replaced. If running 602 Crate Option, #4412 Carburator mandatory.
IGNITION: Ignition must remain and be completely stock OEM replacement parts only. Stock HEI ignition is allowed. No MSD modules, no MSD systems or any after-market or GM ignition boxes allowed. Aftermarket starter is O.K.
EXHAUST SYSTEM:
MUFFLERS ARE MANDATORY, NO ALTERING, NO EXCEPTIONS if running Headers. Mufflers Mandatory: LOBACK MUFFLERS or TWISTER F-SERIES MUFFLERS or Un-altered AUGER STYLE SPEEDWAY INSERT. TURN DOWNS REQUIRED ON ALL CARS MUST FACE THE GROUND, NO EXHAUST SHOULD EXIT THE SIDE OF CAR- MUST BE ON CAR AT ALL TIMES AT TRACK. Both Mufflers must be in place prior to the hot laps, heat and feature races or car will be disqualified for the night, forfeiting all winnings and will not be able to finish the race. Must use under chassis header, that meets these specifications with 1.625-inch tubes (1-5/8 inch tubes) and 3-inch collector.
Note: There will be NO Grace Periods given on mufflers at Gator!
No 180 degree, shorty or mini headers. Stock cast iron exhaust manifolds allowed. No porting, polishing, acid treatment or coatings. No Corvette-style (2.5” port exhaust) stock exhaust manifolds.
All Exhaust pipes must extend past driver seat.
RADIATOR: Only one radiator must be in stock location. No cutting of hood for clearance.
Aluminum radiator is allowed. Racing radiator cap is allowed.
FUEL: Gasoline only. Racing fuel allowed. No additives allowed. No alcohol.
FUEL PUMP: Must be stock OEM style fuel pump. Carter and Holley manual styles are allowed.
FUEL CELL: Must be securely mounted to frame in trunk of car between the rear frame rails. Fuel Cell in a Steel Can is required if cell is dropped down between frame rails. A Plastic Fuel Cell may be used only if complete floor pan is in place. Fuel cell is required, maximum capacity of 22 gallons.
DRIVETRAIN - TRANSMISSION:
Any OEM automatic transmission is allowed. Unit must be stock and have a full working torque converter, minimum of 10". Powerglides may have 10” torque converter. No direct drives, valved pumps or bleeder style valve bodies. All forward, neutral and reverse gears must be in working order for all automatics except Powerglides. Powerglides are allowed to have either one or both forward gears, with neutral and reverse in working order.
Standard transmissions must be OEM stock cast iron three or four speed allowed, with all gears in working order and a minimum of 10.5” clutch, pressure plate and full size stock flywheel. No mini-clutches, Ram couplers or direct drives. Standard transmissions may not use aluminum flywheel of any size.
All standard transmissions must have bell housing made of 1/4” thick steel and must cover 180 degrees over the sides and top of the clutch assembly (also referred to as a blow-proof bell housing).
No 5-speed or 6-speed standard transmissions, no overdrive transmissions or overdrive units. No Bert, Brinn or internal clutch style transmissions allowed. No ram couplers allowed. Quick-change transmissions or transmission adapters for gear change are not allowed.
Car must be self-starting and have working neutral, reverse and ALL forward gears. (ex. 3-speed trans. must have 3 forward working gears.)
Transmission fluid coolers are allowed, but may not be mounted exposed in drivers compartment.
DRIVESHAFT: Driveshaft must be steel and must be painted white or silver. Driveshaft must have a steel driveshaft loop (360 degrees) connected to the frame located within 6” of the front driveshaft u-joint. Minimum size of driveshaft loop is 2” x 1/4” or minimum 1” round tubing. No chain loops are allowed as driveshaft loops.
REAR-END: Rear-end must be OEM stock for year, make and model. Any gear ratio allowed as long as no altering of housing is required to allow for installation. (Note: 8.5 GM Rear-end may replace 7.5 GM Rear-end for durability purpose.)
Axles must be locked together at all times with mini-spool or welded. No posi-trac, limited slip, Detroit locker or full spool allowed.
BRAKES: After-market racing brake pedal and single racing master cylinder are allowed. No aluminum brake calipers or suspension braking components. Cars must have a minimum of three (3) functioning brakes. If four brakes are installed, a cut-off valve may be used on one of the brakes, which may not be in the driver's compartment. Adjustable proportioning valves are not allowed. If using three brakes, the fourth brake components need not be present other than rotor, which you can remove outer portion. Rear Disc brakes are allowed with steel components only and with only a single piston caliper.
STEERING: Quick steer boxes of any type or style allowed. Complete OEM stock steering system for year, make and model, from the steering box to the spindles, including steering gear box must be used. Cast iron steering box only. After-market steering shaft and quick release steering wheel is allowed. Steering wheel spacer allowed to a maximum of 3”thick.Any stock OEM power steering pump allowed, no aftermarket power steering pumps.
SUSPENSION: No modifying of the suspension is allowed. Exception: Upper control arm brackets may be moved for caster and camber adjustment. Cannot move lower A-frames. OEM suspension parts only. No cutting, welding or bending of frame to accommodate suspension changes. Suspension parts must remain absolutely stock for that year, make and model of car. This includes spindles, rotors, upper control arms, lower control arms, ball joints, tie rods, tie rod sleeves, center link, pitman arm, idler arm, steering box and trailing arms. All upper/lower trailing arm & upper/lower control arm bushings must be present. Front upper/lower control arms bushings may be replaced with steel after-market. No mono-ball, bearing type or offset bushings. Rear upper/lower trailing arms may use aftermarket rubber bushings and cannot be drilled. Bolt on Spindle Savers are allowed. Upper Control Arm can be strengthened with a maximum of 3/8 inch cold roll or rebar along the outer lip within the groove. Steel IMCA Stock Car A-Arm part # 91034394 left/right may be used.
SPRINGS: Racing springs may be used. Rear coil spring must not extend through the stock spring bucket and the maximum spring length is 13 inches. Adjustable spring spacers are allowed on front and rear, no jack-bolts. Steel leaf springs only, may be after market, may use lowering blocks. Any steel non-jack bolt type leaf spring shackles are allowed, including multi-hole, no sliders.
SHOCKS: Shocks must be steel OEM replacement shocks. Shocks must be mounted using the OEM stock mounts in the factory installed location. No heims on shocks allowed. No shock adapters.
ROLL CAGE: Roll bars must be constructed of 1.5” x .095” steel tubing minimum.
Main roll bar and halo must be a minimum of 1” higher than the driver’s helmet. Minimum of three (3) door bars on the driver side and a minimum of two (2) door bars on the passenger side. A single bay bar per side is allowed, and may not extend past the idler arm or the steering box. Two vertical bars may be attached to each bay bar to the frame. Maximum size is 1.5” inch O.D., .095” tubing. The center of the roll cage and driver's seat may be no further back than the third (3rd) body mount bushing frame hole for metric frames, and no less than 25" inches forward of rear axle centerline on all other cars. All roll cage welds must be complete and pass safety inspection by tech officials. Floor pan may be cut for cage and sub- frame connectors, but must be replaced by a minimum of 20 gauge steel. X-bracing under the driver (frame-to-frame) is allowed.
NERF BARS: A single nerf bar is allowed on each side. Maximum size 1.5” x .095”. May be attached to main cage only at the front and rear section of the nerf bar. This means only two (2) attachment points are allowed. No open tubing allowed. Tubing must be capped or rounded with no sharp edges. No nerf bars are allowed on the rear outside quarter panel area. Nerf bars may not extend outside of tires.
WINDSHIELD BARS: A minimum of three vertical windshield bars are required. Must be a minimum of 3/8” diameter steel and mounted in front of the driver.
TIRES: Any brand DOT radial tire is allowed. Allowable sizes are 225/60, 235/60, 245/60, 255/60, 275/60, also may run American Racer KK704 or Hoosier IMCA stamped G60. Grooved and siped tires are allowed. No softening of tires.
WHEELS: Any 8” width steel wheel. Any offset from 2” through 5” is allowed. After-market 5/8” lug studs are recommended. 1” diameter lug nuts are required. Wheel spacers are not allowed with stock studs. Wheel adapters are not allowed. No screws allowed. A protective outer ring is allowed to be welded to the outer lip of the wheel with a maximum size .5” O.D., round or square is allowed. A flat bar of 1.25” may also be used. Bead lock placed on right rear only.
INTERIOR: Any oil or transmission fluid coolers in the driver’s compartment must be configured to shield the driver in case of leaks. The cooler lines must be encased in tubing, rubber or steel may be used.
BODIES:
Any steel factory style OEM body is permitted, and must have factory hood, truck, roof, fenders, doors, and quarter panels. Bodies must remain in stock location, or be proportionate to stock location when using an alternate body. Frame must remain square and to factory specs. No Roof Rake. Complete bumper-to-bumper steel body must be retained. Note:1981-1988 Performance Bodies street stock Monte Carlo steel body and Five Star Race Car Body Package #601-101S are allowed. No Camaro Bodies. No Late-Model, No Wide-Bodies, No Aluminum Body Components.
Enclosure required at rear bumper to trunk lid. Fuel Cell should not be visible.
Doors must be welded or bolted shut. Doors may be gutted for cage installation. All glass, plastic, fiberglass and trim must be removed from racecar. Upholstery and plastic portion of the dash must be completely removed. No gutting of steel interior except for hood and trunk. (See Floor for gutting Exceptions) A-Posts may be trimmed and cleaned up to allow for engine set back, but must be reinforced. Window Post may not be removed.
FENDERS: Fenders may be cut for tire clearance only and fender must be within 7” of the tire. Front inside fender wells must be removed. Rear Fender wells may be removed.
FIREWALL: Firewalls may be stock or made of 20 gauge steel. Firewall must be complete, from fender to fender, top to bottom, deck to floor pan, all holes closed with 20 ga. steel. Firewall may not be further than 40 inch back from the first frame mounting bolt (closest to the front bumper) of the steering box. The firewall may be rolled back to allow for distributor clearance not more than 6 inches. Note: If driver's compartment is enclosed, and decking is in place, the rear firewall may be removed and replaced no less than 25" inches forward of rear axle centerline on all makes and models, with a minimum 20 gauge steel behind the driver /passenger area to ensure the safety of driver.
FLOOR: Floorboards must remain in car. All rusted portions of the floorboard must be replaced with minimum 20 gauge steel. The floor pan must remain stock from front firewall to no less than 25" inches forward of rear axle centerline on all makes and models, and must fully extend from left rocker panel to right rocker panel.
BUMPERS: Stock OEM bumpers are required. Option: After-market plastic bumpers may replace stock OEM bumber. A maximum of 2 in. x 3 in. rectangular tubing or 1 ¾ in. round tubing should be used to support plastic bumper. Bumper loops are required to protect radiator, fuel tank and to be used by wrecker for tow hooks. Maximum 1.5” x .095” steel tubing, maximum 8” tall and not wider than the frame and mounted to the frame or bumper only.
HOOD: Steel Hood/Trunk Required, No Aluminum. Hood may be hulled and must remain in place at all times. Hood must be pinned. No holes allowed in the hood: therefore no working hood scoops. Any holes in hood must be covered by steel. Quick release hood pins and rear deck pins are required. Hood must make a complete seal dashboard and/or firewall. The engine compartment must not be visible from driver’s seat.
SPOILER: Not to exceed 6” and must be attached to rear of trunk lid only. May not extend past the width of the car. Spoiler supports may not be taller than spoiler and may not be longer than 12 inches. Spoiler may be made of aluminum, steel, or Lexan. No Raised Body Lips, Side-Spoilers, or wings on any part of the car. No Window Spoilers.
IGNITION SWITCH: All cars must have ignition switch clearly labeled. The car must be equipped with a kill switch to be located within reach when standing outside of the car and easily accessible to emergency personnel.
BATTERY : Only one twelve volt (12v) battery allowed. Battery and battery box must be securely mounted to car and safely sealed. Battery must be completely encased in an enclosed battery box.
DRIVER LOCATION: Driver must be located in the original OEM seat location on the left side of the vehicle only. No back seat mounting of driver’s seat.
REVIEW SEAT, DRIVER'S SAFETY, WINDOW NET, & SCORING RULES ABOVE.
2013 PURE STOCK RULES
GENERAL RULES:
Gator Motorplex Pure Stocks are designed to be an entry level class. Age requirement is 13 years of age and up. Ages 13 -17 must have a notarized release form signed by their legal guardian/parent and birth certificate on file.
Drivers may not move from class to class. If you start the season in another class, you may not move down to pure stock during the same year. If the pure stock driver races in any other class throughout the season more than twice, he/she may not continue to run pure stock for the remainder of the season. Pure Stock driver MAY NOT run in two classes on the same race night.
Weight Rule: 3400 pounds
BODY AND FRAME:
Any American made GM or Ford metric frame passenger car, metric framed station wagon, S-10, Ranger pick-up and Novas are permitted. All cars must retain stock wheelbase for make and model. Cars must retain stock steel body pieces, floor pan, and stock firewalls. Any rusted pieces must be replaced with 20 gauge steel. Trunk area floor pan required; may be removed outside of frame rails, rearward of wheel houses.
1. Fenders may be cut for tire clearance. Cutting will not exceed 7 inches of the tire circumference.
2. Front inside fender wells may be removed.
3. Body sheet metal must be in place at the beginning of each race event and kept in an acceptable appearance throughout the season.
4. Doors must be welded or bolted shut.
5. All glass, fiberglass, plastic and trim must be completely removed from the car.
6. Driver and passenger door may be gutted for roll cage installation. No other gutting of car allowed. THIS INCLUDES HOOD, TRUNK AND ROOF AS WELL.
7. Hood and trunk must be secured with hood pins at all times. No holes allowed in hood except for hood pin holes.
8. All openings in car that could present a safety hazard to car occupant must be sealed with 20 ga steel.
9. BUMPERS: Stock OEM bumpers are required. Option: After-market plastic bumpers may replace stock OEM bumber. A maximum of 2 in. x 3 in. rectangular tubing or 1 ¾ in. round tubing should be used to support plastic bumper. In front of plastic bumber, a wrecker loop is required, may not extend further than frame horns, maximum
2 in x 3 in. rectangular tubing or 1- 3/4” steel tubing, tubing must be capped and rounded with no sharp edges .
10. Body may not be altered from its OEM appearance and must remain in stock location. No roof raking.
11. Rub Rails: A single rub rail is allowed on each side. Maximum size 1” x .2” maximum thickness 3/16" steel or lexan bolted flush to body only. Steel tubing must be capped and rounded with no sharp edges. No rub rails are allowed on the rear outside quarter panel area.
ENGINE:
1. Any straight or V-6 cylinder or V-8 engine with a maximum 361 cubic inch engine: must remain in stock location. Stock motor mounts are required, may use OEM stock steel replacement motor mounts, which must be bolted into stock location. 4 valve relief Flat top or dish pistons only, must be cast or hypereutectic, no forged pistons.
2. Cylinder heads. Any open chamber cast iron steel OEM factory production straight plug head is allowed that meets the described requirements. (305 ON 305, 350 ON 350, ECT.) No closed nor partially closed chambered heads. No vortec, aluminum or special order heads. Maximum 1.94 intake valves and 1.50 exhaust valve. Heads may be flat milled for surfacing reasons only. No angle milling. Studs may be pinned or may also use shoulderless screw in studs not to exceed 3/8” on the rocker arm side. No interior deburring or grinding allowed. Casting numbers must remain in heads.
3. Cast iron intake manifolds only. No bowtie, marine, or high-rise intakes. No aluminum intakes (even if OEM for year, make and model came with an aluminum intake). No Brezinski Intake. No port matching intakes or exhausts. No deburring or grinding allowed. No internal modifications of any intake permitted. All casting numbers and firing order must remain unaltered and visible.
4. Carburetor: Any 1 inch non-adjustable adapter only. A factory stock Holly 350 Carburetor (Part # 0-7448 or Holley rebuilt #65-7448) or Rochester 2-barrel model #2GV (#2GV Carburetor Spec: maximum base plate butterfly opening size 1-7/16 inch)is the ONLY carburetors allowed. Removal of the choke flap is the only modification allowed. Ram air or forced induction NOT allowed.
5. Any brand, style or size air cleaner is allowed, but no type of RAM air or forced air induction will be allowed.
6. After-market valve cover with breather tubes may be used.
7. Camshaft and lifters Camshaft and lifters must be OEM hydraulic style only; Roller lifters of any type are not permitted. Camshaft lobes not to exceed .300.Maximum valve lift allowed is .450”, measured at the valve. Mechanical lifter may be used by tech, for testing purposes. Engine must hold minimum of 15” vacuum at 1000 engine RPM. (.300 with 1.5 rocker arms equal .450 at the valve) 1.6 rocker arms not allowed. Stock or stock replacement fully hydraulic lifters.
8. Stock appearing rods only. Rods should be 5.7” rods only. 3.48 stroke only. ARP rod bolts allowed.
9. Stock appearing crank only. No lightweight cranks allowed. No knife edge, no bull nosing, undercut or drilling of second or third rod journals throw allowed.
10. Exhaust manifolds must be stock cast iron only. No corvette style (2.5” port exhaust) stock manifolds. No porting, polishing, acid treatment or coatings. Exhaust pipes must extend past driver’s compartment. No Brezinski exhaust manifolds. Must have Turn Downs on Exhaust.
11. Maximum engine cranking compression is 160 psi. For testing, with one or all spark plugs removed from the engine, the engine rotating assembly will be “spun” by the starter for five “hits” on the cylinder being tested and the resulting compression gauge reading recorded for that engine.
12. Must have an oil pan 1” inspection plug between the 2nd and 3rd bolt holes from the front of the motor on the drivers side to avoid oil pan removal. No obstruction inside of pan.
ROLL CAGE:
1. Roll cage must be constructed of no less than 1.5” x .095” steel tubing. Main roll cage and halo must be a minimum of 1” above drivers head. A minimum of 3 drivers door bars are required and a minimum of 2 passenger door bars are required. All roll cage welds must be complete.
2. Floor pan may be cut for roll cage installation clearance only. Minimum of 20 ga. steel for replacement floor pans.
3. X bracing under the driver (frame to frame) and sub frame connectors is permitted.
4. Windshield bars must be solid steel bars, minimum 3/8” OD. Windshield bars must extend from upper windshield flange at roof to lower windshield flange at cowl. A minimum of three vertical windshield bars are required in front of driver.
5. Driver must be in stock OEM seating location.
ELECTRICAL:
1. All cars must have an ignition switch clearly labeled.
2. The car must have a battery disconnect switch located outside the car and easily accessible to emergency Personnel. If the car is equipped with a working alternator the switch must disable alternator as well.
3. Only 1 twelve volt battery is allowed. Battery and box must be securely mounted and enclosed if in driver’s compartment or trunk.
FUEL CELL:
Must be securely mounted in trunk of car between frame rails. All cars must have a fuel cell with maximum capacity of 22 gallons. All fuel cells must have a roll-over valve. No plastic boat tanks. You can run gasoline only with no additives.
TRANSMISSION:
1. Any automatic stock transmission (powerglide or turbo 350). All torque converters must be 12 inches with no modifications. All forward gears must be in working order on all transmissions, with a neutral and working reverse. No over-drive transmissions. No standard transmissions. Transmission cooler OK but must be out of drivers compartment or shielded to protect driver.
2. Transmission coolers okay, but must be out of driver's compartment or sheilded to protect driver.
3. With engine at idle, and brake applied, transmission must accept shift from “neutral” gear to “reverse” gear, and from “neutral” gear to “low” gear, without causing engine to stall. Race car must remain stationary during such shifting and testing.
DRIVESHAFT:
All drive shafts must be steel and painted white. Driver shaft must have a safety loop within 6 inches of the front u-joint. No chain loops allowed.
REAR-END:
Rear-end must be stock OEM for make and model of car. Any gear ratio is allowed as long as the housing doesn’t have to be altered. Rear end must be locked. Mini spools are OK. No limited slip or posi-traction.
BRAKES:
Brake system must remain stock OEM to make and model. No aftermarket components of any kind. Stock pedal and stock OEM master cylinders required. Brake pedal may not be extended. Car must have minimum of 3 wheel brakes in working order at all times.
For safety purposes, rear disc brakes are HIGHLY recommended. Rear disc brakes must have steel components only. Brake caliper must be of single piston type only.
STEERING:
Must use stock OEM steering for make and model. May use after market steering shaft and quick release. Quick Steer Allowed. No aluminum or after-market gear boxes.
SUSPENSION:
Suspension parts must remain stock for make and model. No modification to any suspension components. No adjustable or non-adjustable spring spacers. Racing spring allowed maximum height 13” (steel only). Leaf spring cars may use lowering blocks. Stock appearing shocks only. No adjustable shocks, No QA1, or No Integra shocks. A-Arm bushings may be replaced with stock style OEM type only. Note: Bushings may not be steel, mono-ball, nor greasable type on rear trailing arms or upper/lower control arms.
TIRES:
60 Series DOT tires. (Must be able to have a road hazard warranty. Any tire designed or intended for racing not permitted.) Asphalt pull off grooving & siping allowed. Must be a pull off no new slick tires. Must durameter 51 at end of race.
WHEELS:
Maximum 8 inch steel wheel. No light weight wheels permitted. 5/8 studs and 1 inch lug nuts are required. No beadlocks. Wheel spacers are allowed.
RADIATOR:
Only one radiator is permitted in stock location. Aluminum radiator allowed.
FUEL PUMP:
Fuel pump must be stock mount push rod activated. Aftermarket manual type pump is OK. (Example: Carter, AC, Holley)
DRIVER RESTRAINTS:
1. Aluminum racing seats with rib supports are required. Seats must be securely mounted to chassis, not floor pan, with a minimum of four 3/8” bolts. Seat may not be positioned further back than original location.
2. 5 point safety harnesses are required. Required: S.F.I. tag must be legible and no more than 3 years old. Must be bolted to the roll cage and frame with a minimum bolt size of 7/16 inch bolts.
3. A properly installed, full size driver’s side window net is required. Sprint car type window nets are not allowed.
4. All helmets must be a full face, current Snell 90 or newer sticker in it. Snell SA90 & SA00 legal.
5. All drivers are required to wear fire resistant driving suit and gloves. No nomex coveralls will be allowed. Neck braces are mandatory. Fire resistant shoes are recommended.
Pure Stock Track Disclaimer:
After every four (4) 'A' Feature wins, a MANDATORY tear-down will be performed by removing one cylinder head, at track's choice. The track has the option for a tear-down after ANY 'A' feature win. If motor is found to be legal, the driver will receive $50 or gaskets. If motor is found to be illegal, or driver/owner refuses tear-down, the driver and car will be disqualified and lose all moneys earned and points for the night.
In an effort to maintain the purpose of the Pure Stock class, as an entry level/beginner class of race cars for drivers; the track reserves the right to ask a driver to move to a more advance class of cars. The track officials will take into consideration the drivability of the driver, years of experience, feature wins, championships, and listen to the driver's input prior to making an official decision. However, the final decision will rest upon the track official. If a driver wins the championship two consecutive years, he/she will be required to move up a class of cars.
Gator Motorplex Pure Stocks are designed to be an entry level class. Age requirement is 13 years of age and up. Ages 13 -17 must have a notarized release form signed by their legal guardian/parent and birth certificate on file.
Drivers may not move from class to class. If you start the season in another class, you may not move down to pure stock during the same year. If the pure stock driver races in any other class throughout the season more than twice, he/she may not continue to run pure stock for the remainder of the season. Pure Stock driver MAY NOT run in two classes on the same race night.
Weight Rule: 3400 pounds
BODY AND FRAME:
Any American made GM or Ford metric frame passenger car, metric framed station wagon, S-10, Ranger pick-up and Novas are permitted. All cars must retain stock wheelbase for make and model. Cars must retain stock steel body pieces, floor pan, and stock firewalls. Any rusted pieces must be replaced with 20 gauge steel. Trunk area floor pan required; may be removed outside of frame rails, rearward of wheel houses.
1. Fenders may be cut for tire clearance. Cutting will not exceed 7 inches of the tire circumference.
2. Front inside fender wells may be removed.
3. Body sheet metal must be in place at the beginning of each race event and kept in an acceptable appearance throughout the season.
4. Doors must be welded or bolted shut.
5. All glass, fiberglass, plastic and trim must be completely removed from the car.
6. Driver and passenger door may be gutted for roll cage installation. No other gutting of car allowed. THIS INCLUDES HOOD, TRUNK AND ROOF AS WELL.
7. Hood and trunk must be secured with hood pins at all times. No holes allowed in hood except for hood pin holes.
8. All openings in car that could present a safety hazard to car occupant must be sealed with 20 ga steel.
9. BUMPERS: Stock OEM bumpers are required. Option: After-market plastic bumpers may replace stock OEM bumber. A maximum of 2 in. x 3 in. rectangular tubing or 1 ¾ in. round tubing should be used to support plastic bumper. In front of plastic bumber, a wrecker loop is required, may not extend further than frame horns, maximum
2 in x 3 in. rectangular tubing or 1- 3/4” steel tubing, tubing must be capped and rounded with no sharp edges .
10. Body may not be altered from its OEM appearance and must remain in stock location. No roof raking.
11. Rub Rails: A single rub rail is allowed on each side. Maximum size 1” x .2” maximum thickness 3/16" steel or lexan bolted flush to body only. Steel tubing must be capped and rounded with no sharp edges. No rub rails are allowed on the rear outside quarter panel area.
ENGINE:
1. Any straight or V-6 cylinder or V-8 engine with a maximum 361 cubic inch engine: must remain in stock location. Stock motor mounts are required, may use OEM stock steel replacement motor mounts, which must be bolted into stock location. 4 valve relief Flat top or dish pistons only, must be cast or hypereutectic, no forged pistons.
2. Cylinder heads. Any open chamber cast iron steel OEM factory production straight plug head is allowed that meets the described requirements. (305 ON 305, 350 ON 350, ECT.) No closed nor partially closed chambered heads. No vortec, aluminum or special order heads. Maximum 1.94 intake valves and 1.50 exhaust valve. Heads may be flat milled for surfacing reasons only. No angle milling. Studs may be pinned or may also use shoulderless screw in studs not to exceed 3/8” on the rocker arm side. No interior deburring or grinding allowed. Casting numbers must remain in heads.
3. Cast iron intake manifolds only. No bowtie, marine, or high-rise intakes. No aluminum intakes (even if OEM for year, make and model came with an aluminum intake). No Brezinski Intake. No port matching intakes or exhausts. No deburring or grinding allowed. No internal modifications of any intake permitted. All casting numbers and firing order must remain unaltered and visible.
4. Carburetor: Any 1 inch non-adjustable adapter only. A factory stock Holly 350 Carburetor (Part # 0-7448 or Holley rebuilt #65-7448) or Rochester 2-barrel model #2GV (#2GV Carburetor Spec: maximum base plate butterfly opening size 1-7/16 inch)is the ONLY carburetors allowed. Removal of the choke flap is the only modification allowed. Ram air or forced induction NOT allowed.
5. Any brand, style or size air cleaner is allowed, but no type of RAM air or forced air induction will be allowed.
6. After-market valve cover with breather tubes may be used.
7. Camshaft and lifters Camshaft and lifters must be OEM hydraulic style only; Roller lifters of any type are not permitted. Camshaft lobes not to exceed .300.Maximum valve lift allowed is .450”, measured at the valve. Mechanical lifter may be used by tech, for testing purposes. Engine must hold minimum of 15” vacuum at 1000 engine RPM. (.300 with 1.5 rocker arms equal .450 at the valve) 1.6 rocker arms not allowed. Stock or stock replacement fully hydraulic lifters.
8. Stock appearing rods only. Rods should be 5.7” rods only. 3.48 stroke only. ARP rod bolts allowed.
9. Stock appearing crank only. No lightweight cranks allowed. No knife edge, no bull nosing, undercut or drilling of second or third rod journals throw allowed.
10. Exhaust manifolds must be stock cast iron only. No corvette style (2.5” port exhaust) stock manifolds. No porting, polishing, acid treatment or coatings. Exhaust pipes must extend past driver’s compartment. No Brezinski exhaust manifolds. Must have Turn Downs on Exhaust.
11. Maximum engine cranking compression is 160 psi. For testing, with one or all spark plugs removed from the engine, the engine rotating assembly will be “spun” by the starter for five “hits” on the cylinder being tested and the resulting compression gauge reading recorded for that engine.
12. Must have an oil pan 1” inspection plug between the 2nd and 3rd bolt holes from the front of the motor on the drivers side to avoid oil pan removal. No obstruction inside of pan.
ROLL CAGE:
1. Roll cage must be constructed of no less than 1.5” x .095” steel tubing. Main roll cage and halo must be a minimum of 1” above drivers head. A minimum of 3 drivers door bars are required and a minimum of 2 passenger door bars are required. All roll cage welds must be complete.
2. Floor pan may be cut for roll cage installation clearance only. Minimum of 20 ga. steel for replacement floor pans.
3. X bracing under the driver (frame to frame) and sub frame connectors is permitted.
4. Windshield bars must be solid steel bars, minimum 3/8” OD. Windshield bars must extend from upper windshield flange at roof to lower windshield flange at cowl. A minimum of three vertical windshield bars are required in front of driver.
5. Driver must be in stock OEM seating location.
ELECTRICAL:
1. All cars must have an ignition switch clearly labeled.
2. The car must have a battery disconnect switch located outside the car and easily accessible to emergency Personnel. If the car is equipped with a working alternator the switch must disable alternator as well.
3. Only 1 twelve volt battery is allowed. Battery and box must be securely mounted and enclosed if in driver’s compartment or trunk.
FUEL CELL:
Must be securely mounted in trunk of car between frame rails. All cars must have a fuel cell with maximum capacity of 22 gallons. All fuel cells must have a roll-over valve. No plastic boat tanks. You can run gasoline only with no additives.
TRANSMISSION:
1. Any automatic stock transmission (powerglide or turbo 350). All torque converters must be 12 inches with no modifications. All forward gears must be in working order on all transmissions, with a neutral and working reverse. No over-drive transmissions. No standard transmissions. Transmission cooler OK but must be out of drivers compartment or shielded to protect driver.
2. Transmission coolers okay, but must be out of driver's compartment or sheilded to protect driver.
3. With engine at idle, and brake applied, transmission must accept shift from “neutral” gear to “reverse” gear, and from “neutral” gear to “low” gear, without causing engine to stall. Race car must remain stationary during such shifting and testing.
DRIVESHAFT:
All drive shafts must be steel and painted white. Driver shaft must have a safety loop within 6 inches of the front u-joint. No chain loops allowed.
REAR-END:
Rear-end must be stock OEM for make and model of car. Any gear ratio is allowed as long as the housing doesn’t have to be altered. Rear end must be locked. Mini spools are OK. No limited slip or posi-traction.
BRAKES:
Brake system must remain stock OEM to make and model. No aftermarket components of any kind. Stock pedal and stock OEM master cylinders required. Brake pedal may not be extended. Car must have minimum of 3 wheel brakes in working order at all times.
For safety purposes, rear disc brakes are HIGHLY recommended. Rear disc brakes must have steel components only. Brake caliper must be of single piston type only.
STEERING:
Must use stock OEM steering for make and model. May use after market steering shaft and quick release. Quick Steer Allowed. No aluminum or after-market gear boxes.
SUSPENSION:
Suspension parts must remain stock for make and model. No modification to any suspension components. No adjustable or non-adjustable spring spacers. Racing spring allowed maximum height 13” (steel only). Leaf spring cars may use lowering blocks. Stock appearing shocks only. No adjustable shocks, No QA1, or No Integra shocks. A-Arm bushings may be replaced with stock style OEM type only. Note: Bushings may not be steel, mono-ball, nor greasable type on rear trailing arms or upper/lower control arms.
TIRES:
60 Series DOT tires. (Must be able to have a road hazard warranty. Any tire designed or intended for racing not permitted.) Asphalt pull off grooving & siping allowed. Must be a pull off no new slick tires. Must durameter 51 at end of race.
WHEELS:
Maximum 8 inch steel wheel. No light weight wheels permitted. 5/8 studs and 1 inch lug nuts are required. No beadlocks. Wheel spacers are allowed.
RADIATOR:
Only one radiator is permitted in stock location. Aluminum radiator allowed.
FUEL PUMP:
Fuel pump must be stock mount push rod activated. Aftermarket manual type pump is OK. (Example: Carter, AC, Holley)
DRIVER RESTRAINTS:
1. Aluminum racing seats with rib supports are required. Seats must be securely mounted to chassis, not floor pan, with a minimum of four 3/8” bolts. Seat may not be positioned further back than original location.
2. 5 point safety harnesses are required. Required: S.F.I. tag must be legible and no more than 3 years old. Must be bolted to the roll cage and frame with a minimum bolt size of 7/16 inch bolts.
3. A properly installed, full size driver’s side window net is required. Sprint car type window nets are not allowed.
4. All helmets must be a full face, current Snell 90 or newer sticker in it. Snell SA90 & SA00 legal.
5. All drivers are required to wear fire resistant driving suit and gloves. No nomex coveralls will be allowed. Neck braces are mandatory. Fire resistant shoes are recommended.
Pure Stock Track Disclaimer:
After every four (4) 'A' Feature wins, a MANDATORY tear-down will be performed by removing one cylinder head, at track's choice. The track has the option for a tear-down after ANY 'A' feature win. If motor is found to be legal, the driver will receive $50 or gaskets. If motor is found to be illegal, or driver/owner refuses tear-down, the driver and car will be disqualified and lose all moneys earned and points for the night.
In an effort to maintain the purpose of the Pure Stock class, as an entry level/beginner class of race cars for drivers; the track reserves the right to ask a driver to move to a more advance class of cars. The track officials will take into consideration the drivability of the driver, years of experience, feature wins, championships, and listen to the driver's input prior to making an official decision. However, the final decision will rest upon the track official. If a driver wins the championship two consecutive years, he/she will be required to move up a class of cars.
2013 RaceSaver 305 Sprint Rules
RaceSaver Certified Tech: Randy Waller 936-537-5265
Gator Motorplex is committed to the 305 RaceSaver Sprint Series. Randy Waller is the cerified Tech Inspector for the area. All Sprints running the Gator Motorplex RaceSaver 305 Series Series is required to display proper decals provided by Randy Waller, series inspector/promotor.
Engine Rules:
1: Blocks, GM 305 V-8s w/ approved casting #’s 361979 460776 460777 460778
2: #’s continued: 14010201 14010202 14010203 14088551 14016381 355909
3: Max C.I. 315.9 No Tolerance. Stroke 3.480 + - .020. Max. bore 3.801 Do the math!
4: Flat top pistons with valve relief's. Cannot protrude from cylinder bore.
5: Crank, iron or steel, min. weight 48 lbs. 1% tolerance, min. main brg. dia. 2.450 -.030. NO weight added to crank w/ exception of balance metal which must be welded in place.
6: 5.7” steel rods, min. rod journal dia. 2.100 -.030. Pan may be removed for inspection.
7: Cam drive: Chain only. No gear or belt drives. No device to vary running cam timing.
8: Plain hub or SFI approved damper. Stock location water pump.
9: Stock (.842) dia. flat tappets. NO roller, hydraulic, mushroom or radius tappets.
10: Cam: original material, configuration & firing order (18436572) No billet or hardened cams.
11: Spring specs: Straight wound springs w/ flat damper. Max dia.1.265”, min. dia. 1.200, Installed ht. min. 1.650, max. 1.825. Absolute max. pressure: @ seat 120#, @ .500 lift 355#, max. wire dia..195, Free ht. Max. 2.100, min. 1.900. Spring must have min. of 5 full coils.
12: Wet sump, internal pump only, no crankcase vacuum systems.
13: Roller rockers allowed. 3/8” stud mount rockers only. NO shaft systems.
14: Absolute max. valve lift: (.510” int., .535” exh.) measured @ zero lash @ valve retainer.
15: No girdles, rev kits, or valve train stabilizers. Tappet access for inspection required.
16: No repositioning, boring or bushing of cam or lifter bores. Max cam dia.1.869 + .002
17: Valves: Int. 1.94”, exh. 1.60”, Stem 11/32”, orig. length & weight, No altered or hollow stems.
18: Ferrous material only: Valves, Retainers, Keepers, Push rods, Springs, Tappets, Cam & cam drives, Crank, Rods, Wrist pins, Fasteners, Main Caps, No titanium or ceramics in engine.
19: Point type Magnetos, or Kettering style ignition. Constant flow fuel injection only.
20: 100 lb. wt. penalty for use of any electronic components, incl: ignition, ECU’s or driver aids.
21: RACESAVER® 305 SPEC head: Absolutely NO changes. NO machining, milling, resurfacing, grinding, polishing, welding, acid or caustic work, shot peening, glass beading, coating, or any other process that will alter the machined surfaces or the natural sand cast finish. Must retain all original dimensions & configurations including; Valves, springs, retainers, stems, & guides. The ONLY work allowed is: Reseating the valves. NO top cuts that extend into the aluminum of the chamber. NO, under the seat relief cuts. NO work that enlarges the as delivered throat size, 1.810 Int. & 1.345 Ex. (+ or - .010). NO bowl changes. NO CHANGES! Every dimension of these heads has a gauge dimension that must be met for them to be certified. Change any one of them and you will be disqualified. The stamped identification marks may not be altered.
22: Compression Ratio: 10.25 to 1 absolute maximum. C.R. checked w/ Whistle, or by pouring the assembled cylinder. Absolute minimum assembled cylinder volume: 70 cc. Heads may NOT be milled !!! Only exception is pre- approved milling to repair surface. All repairs MUST be pre- approved. Contact RACESAVER® Certified Tech: Randy Waller @ 936-537-5265 before attempting repairs. A repair authorization number will be issued. After repair, heads must be recertified and marked accordingly. Original serial numbers and certification marks must be intact. They may not be altered or obscured. Any & all repairs MUST be pre-approved and heads recertified. If any
spec head is found to be modified; it must be REPLACED with a certified spec head.
23: The spirit and intent of the RACESAVER® 305 SPEC Engine Rules will prevail.
Any attempt to circumvent the rules may result in confiscation of suspect parts, and other significant penalties. We reserve the right to exchange any Spec Head at any time. If heads are illegal, NO exchange will be made. Illegal heads will be removed from legal head registry.
Car Rules:
These car rules apply to all interregional and national events. Variances on weight, wing & tire rules, may be acceptable within single region events.
1: Frame and body must have a sprint car appearance. Wheel base 80” minimum, 95” max.
2: Min. weight w/ driver, after race 1575 lbs with Wings. Starting weight must allow for fuel burn off. Ballast weight must be located between the front motor plate to 12" behind rear motor plate.
3: Rear bumpers & rub rails, steel only, .095 max. wall (Can NOT contain ballast or lead.)
4: RR Bead lock required. No Bleeders. Minimum RR tire durometer 35.
5: Wing maximums: 25 sq. ft., 61” wide, 2.5” belly, side boards 30” by 72”, Wing angle,
wicker bill, and front wings are regional options.
6: No cockpit adjustable weight jacks, shocks, or wings.
7: No titanium, carbon, ceramic brakes. No Ti or carbon rotating parts larger than 1.5" in dia.
8: No open drive lines. Safety hoop or strap required. Center section must be centered in frame.
9: Fuel bladder & tank shut off required. On board fire extinguisher strongly recommended.
10: Pure Methanol only. No additives allowed. Fuel lube subject to test & review.
11: Safety minimum requirements: Approved 5 point harness, fire suit, gloves, roll bar padding, shoes, arm restraints, and SFI approved helmet. Hans ® device recommended.
12: Tech official decides legality of entry. Penalties determined by competition committee.
Note: There will be no grace periods given on mufflers.
TRACK MUFFLER - ALL RACESAVER SPRINTS MUST RUN UNALTERED 3-RING INSERTS PRODUCED BY CUSTOM KRAFT. (May be purchased through Smiley's Race Products.)
MUFFLERS ARE MANDATORY PRIOR TO ENTERING TRACK SURFACE. ANY CAR THAT LOSE A MUFFLER WILL NOT FINISH THE RACE AND FORFIETS ALL WINNINGS FOR THE NIGHT.
Engine Rules:
1: Blocks, GM 305 V-8s w/ approved casting #’s 361979 460776 460777 460778
2: #’s continued: 14010201 14010202 14010203 14088551 14016381 355909
3: Max C.I. 315.9 No Tolerance. Stroke 3.480 + - .020. Max. bore 3.801 Do the math!
4: Flat top pistons with valve relief's. Cannot protrude from cylinder bore.
5: Crank, iron or steel, min. weight 48 lbs. 1% tolerance, min. main brg. dia. 2.450 -.030. NO weight added to crank w/ exception of balance metal which must be welded in place.
6: 5.7” steel rods, min. rod journal dia. 2.100 -.030. Pan may be removed for inspection.
7: Cam drive: Chain only. No gear or belt drives. No device to vary running cam timing.
8: Plain hub or SFI approved damper. Stock location water pump.
9: Stock (.842) dia. flat tappets. NO roller, hydraulic, mushroom or radius tappets.
10: Cam: original material, configuration & firing order (18436572) No billet or hardened cams.
11: Spring specs: Straight wound springs w/ flat damper. Max dia.1.265”, min. dia. 1.200, Installed ht. min. 1.650, max. 1.825. Absolute max. pressure: @ seat 120#, @ .500 lift 355#, max. wire dia..195, Free ht. Max. 2.100, min. 1.900. Spring must have min. of 5 full coils.
12: Wet sump, internal pump only, no crankcase vacuum systems.
13: Roller rockers allowed. 3/8” stud mount rockers only. NO shaft systems.
14: Absolute max. valve lift: (.510” int., .535” exh.) measured @ zero lash @ valve retainer.
15: No girdles, rev kits, or valve train stabilizers. Tappet access for inspection required.
16: No repositioning, boring or bushing of cam or lifter bores. Max cam dia.1.869 + .002
17: Valves: Int. 1.94”, exh. 1.60”, Stem 11/32”, orig. length & weight, No altered or hollow stems.
18: Ferrous material only: Valves, Retainers, Keepers, Push rods, Springs, Tappets, Cam & cam drives, Crank, Rods, Wrist pins, Fasteners, Main Caps, No titanium or ceramics in engine.
19: Point type Magnetos, or Kettering style ignition. Constant flow fuel injection only.
20: 100 lb. wt. penalty for use of any electronic components, incl: ignition, ECU’s or driver aids.
21: RACESAVER® 305 SPEC head: Absolutely NO changes. NO machining, milling, resurfacing, grinding, polishing, welding, acid or caustic work, shot peening, glass beading, coating, or any other process that will alter the machined surfaces or the natural sand cast finish. Must retain all original dimensions & configurations including; Valves, springs, retainers, stems, & guides. The ONLY work allowed is: Reseating the valves. NO top cuts that extend into the aluminum of the chamber. NO, under the seat relief cuts. NO work that enlarges the as delivered throat size, 1.810 Int. & 1.345 Ex. (+ or - .010). NO bowl changes. NO CHANGES! Every dimension of these heads has a gauge dimension that must be met for them to be certified. Change any one of them and you will be disqualified. The stamped identification marks may not be altered.
22: Compression Ratio: 10.25 to 1 absolute maximum. C.R. checked w/ Whistle, or by pouring the assembled cylinder. Absolute minimum assembled cylinder volume: 70 cc. Heads may NOT be milled !!! Only exception is pre- approved milling to repair surface. All repairs MUST be pre- approved. Contact RACESAVER® Certified Tech: Randy Waller @ 936-537-5265 before attempting repairs. A repair authorization number will be issued. After repair, heads must be recertified and marked accordingly. Original serial numbers and certification marks must be intact. They may not be altered or obscured. Any & all repairs MUST be pre-approved and heads recertified. If any
spec head is found to be modified; it must be REPLACED with a certified spec head.
23: The spirit and intent of the RACESAVER® 305 SPEC Engine Rules will prevail.
Any attempt to circumvent the rules may result in confiscation of suspect parts, and other significant penalties. We reserve the right to exchange any Spec Head at any time. If heads are illegal, NO exchange will be made. Illegal heads will be removed from legal head registry.
Car Rules:
These car rules apply to all interregional and national events. Variances on weight, wing & tire rules, may be acceptable within single region events.
1: Frame and body must have a sprint car appearance. Wheel base 80” minimum, 95” max.
2: Min. weight w/ driver, after race 1575 lbs with Wings. Starting weight must allow for fuel burn off. Ballast weight must be located between the front motor plate to 12" behind rear motor plate.
3: Rear bumpers & rub rails, steel only, .095 max. wall (Can NOT contain ballast or lead.)
4: RR Bead lock required. No Bleeders. Minimum RR tire durometer 35.
5: Wing maximums: 25 sq. ft., 61” wide, 2.5” belly, side boards 30” by 72”, Wing angle,
wicker bill, and front wings are regional options.
6: No cockpit adjustable weight jacks, shocks, or wings.
7: No titanium, carbon, ceramic brakes. No Ti or carbon rotating parts larger than 1.5" in dia.
8: No open drive lines. Safety hoop or strap required. Center section must be centered in frame.
9: Fuel bladder & tank shut off required. On board fire extinguisher strongly recommended.
10: Pure Methanol only. No additives allowed. Fuel lube subject to test & review.
11: Safety minimum requirements: Approved 5 point harness, fire suit, gloves, roll bar padding, shoes, arm restraints, and SFI approved helmet. Hans ® device recommended.
12: Tech official decides legality of entry. Penalties determined by competition committee.
Note: There will be no grace periods given on mufflers.
TRACK MUFFLER - ALL RACESAVER SPRINTS MUST RUN UNALTERED 3-RING INSERTS PRODUCED BY CUSTOM KRAFT. (May be purchased through Smiley's Race Products.)
MUFFLERS ARE MANDATORY PRIOR TO ENTERING TRACK SURFACE. ANY CAR THAT LOSE A MUFFLER WILL NOT FINISH THE RACE AND FORFIETS ALL WINNINGS FOR THE NIGHT.
