SUPER LATE MODEL CLASS RULES - 2021
If the rules do not say you can do it, then don’t do it! Be sure to check the General Rules. All interpretations of rules by a Speedway Management or Speedway Technical Official are final. UNAWARENESS OR IGNORANCE IS NO EXCUSE!
1. CARS AND BODY GUIDELINES:
All competing cars must be stock, full-sized, American manufactured passenger cars. A-B-C Body Rules apply unless specified herein. (Refer to A-B-C Rule Book and Guidelines for details).
No panels allowed extending to top edge of doors.
Any other body configuration must be approved by Speedway Officials prior to qualifying. Weight may be added at the discretion of Speedway Officials.
Rub rails are discouraged and may only be used if they are polycarbonate.
The air box between the nose and radiator may have no pieces wider than the radiator. No types of under-body air deflectors are allowed
All air for blowers or coolers in the engine compartment must be pulled from the nose or radiator air box.
The maximum tread width for all cars is 66-inches.
All cars must go through a technical inspection prior to the car being permitted to enter the track for practice.
Cars will be weighed with the driver, and may be done prior to, or after, qualifying and prior to, or after, the feature race. Reading of Speedway scales will be official.
2. WEIGHT:
Minimum base weight 2,800 pounds, with a maximum of 58% on the left side always (without refueling).
Cars utilizing working locked rear end (i.e. a spool or similar) may deduct 50LBS off their total weight and 58.5% left side.
For post-race total weight requirements, teams may refuel, or Speedway Officials may utilize a “1-pound per lap” burn-off.
3. ENGINE SPECIFICATIONS:
Basic Engine Guidelines
Use of any engine under 347 Cubic Inches will require a 50lb penalty.
Engines with rear mounted distributors will be located so the forward most spark plug is no more than two inches (2”) from the center line of the upper ball joints. Engines with front mounted distributors: up to four inches (4”) setback from centerline of upper ball joints. Crate Engines may use four-inch (4”) setback.
Engines may not be offset more than one inch (1”) from centerline of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate Engines must be at least 11 inches.
Standard steel blocks only. No Carbon Compacted blocks of any type.
No Ford D3, SC, or other High Port heads. The following are the ONLY approved Ford heads: A, B, C, C3, and C35. These heads must remain unaltered other than porting and polishing. No altering will be allowed to change runner floor or roof height to raise port or ports, these heads will be considered high ports and are not permitted. Runner floor and runner roof heights must remain as manufactured from Ford.
No Overhead Camshafts.
A maximum 16-inch (O.D.) air element and housing must be used.
Carburetor restriction must be done with a solid plate or cone type system only and may NOT be externally adjustable in any way. No adjustments may be made to the carb/restrictor package following qualifying. Teams will race with the same package they qualify with.
Any competitor that finishes in the top 5 may be required, at their expense, to remove the intake, heads, and/or oil pan for inspection purposes.
Externally lightened blocks will receive a 25-50 lb. total weight penalty.
All oil pumps must be mounted to front of engine.
9:1 Compression Engine 362 Max Cubic Inches/Cast Iron Block
(This package may be phased out in the near future)
Cannot exceed 9.5:1 compression. Method of determining compression will be at the discretion of Officials. 8200 rpm max.
Minimum valve angle: GM-18 degrees; Ford 9 degrees with 4 degrees valve center; and Mopar 12 degrees. (+/- 2 degrees)
Steel or aluminum cylinder heads.
Steel standard production crankshaft; balancing, lightening, stroking allowed.
Any camshaft, any steel lifter, any rockers arms. Gear drives allowed.
Steel or aluminum intake. No fabricated intakes. No material may be added to production intake manifold to increase carb height. No welded-on spacers or air deflection devices allowed in intake. No part of carb spacer shall enter the intake.
390 CFM 4bbl Part #6895 or #80507. Carburetors must pass inspection at any time regardless of temperature. Booster bar may be removed from center of booster (max inside dia. of booster .473) and the booster may be tapered from the center seam down (booster must retain .700 length minimum) but all 4 boosters must be the same style. No other modifications are allowed on carbs.
1” Maximum spacer allowed but cannot extend into manifold.
Southern Super Parts Engine (SSPE)
Southern Super Parts Engine (May Be Claimed for $21,000 + pulling fee)
Maximum Engine displacement is 362 cubic inches.
Maximum compression ratio is 11.5:1 with +.5 tolerance.
Any flat top piston permitted with 927 wrist pin and .043 x .043x 3mm ring package only. Pistons must not extend out of the top of engine block. Maximum racer cost of $1400.00 per set.
Cast Iron engine blocks only.
Intake must remain stock. Absolutely no match porting or blasting of any kind permitted. Slotting of bolt holes, water lines and matching of sides allowed. Ford part #: Edelbrock 2928, 2929, or 2934 only. Chevy part#: Edelbrock 2814 or 2892 only.
Crankshaft must have a minimum weight of 40 pounds (with front timing pulley or sprocket). Minimum main size Chevy 2.300/ Ford 2.250. Maximum advertised racer cost of $1,400.00
Connecting rods: Minimum rod journal size 1.850”. Absolutely no piston-guided rods permitted. Maximum racer cost of $1400.00 per set. No titanium rods permitted. Minimum rod weight 560 grams.
Listed Brodix Cylinder Heads only. Heads may be surfaced to achieve proper compression ratio. Absolutely no other work of any kind will be permitted to the intake ports, exhaust ports, or combustion chambers. Ford part #: SP STS T-1 F STD 225-SSPE. Must retain minimum valve angle of 20°. Chevy Part #: SP STS T-1 STD 227-SSPE. Must retain min. valve angle of 21°. Multi-angle valve job permitted. Absolutely no blending of valve job below valve seat permitted. Chamber must retain shape 3/8” above valve seat. Minimal blending due to multi-valve jobs permitted.
Maximum valve size: Intake 2.08”, Exhaust 1.60”, Stem size 11/32”. Intake valve may be titanium or stainless steel. Exhaust must be stainless steel.
No Titanium valve springs permitted. Maximum racer cost: $425.00 per set. Titanium retainers permitted. Lock angles not specified.
Camshaft must be Competition Cam Part #: 21151712. Camshaft must be installed on 104° intake centerline +/- 1°. Roller lifters, maximum racer cost of $700.00 per set. Maximum lift of .715” while using 1.6 rockers checked at valve with zero lash. Maximum 1.6 rocker arm racer cost of $1,500.00 per set. Magnetic-type push rods only. No keyway guided lifters permitted.
Maximum 5 stage dry sump oil pump permitted. Max. racer cost of $1,250.00.
Oil pan must have 1” inspection hole. Absolutely no sectional pans permitted. Open box pans only (NO windage tray / scrapers etc.). Max. racer cost of $550.00.
Ignition System may only be FAST Cams Ignition part # 6000-6701. Mount on right side of car dials point out the passenger side. The mag positive & negative shall be a maximum length of 62 inches. Must be remain uncut or spliced and on top of dash in clear view. Mandatory 8000 RPM Rev Limiter must be installed and fully functional. Absolutely no crank trigger pickups permitted.
Carburetor must be an unaltered 750 CFM 4779, 80528 Holley permitted. Carburetor must pass inspection at any time regardless of temperature. Maximum 1” carburetor spacer permitted on Ford motor only. Maximum ½” carburetor spacer permitted on Chevrolet motor only. No Internally or externally lightened blocks.
“Other Engines”
S.E.A.L. approved McGunegill, Hamner. Ford 374D and Florida SPEC “Sealed Engines” may also be used. Any tampering of seals or established construction of these engines is grounds for immediate disqualification. Additional tech rules will apply. The maximum RPM is the series mandated 7600 for these engines. Rev limiting device must always be operational with RPM Dials securely covered. All Sealed engines must use the gauge legal, 750 carb as described in the SSPE section. NO Internally lightened blocks.
The “ACE” Engine as commonly used in the ARCA Midwest Tour may also be used with a 750 carb as described in SSPE engine section. Track officials may add or subtract weight to ensure fair competition. 7800 rpm max.
Legal S.E.A.L. crate engines may also be used, see economy rules section. 50lb Weight break.
Steel head engines may be allowed on a case by case basis with 750 carb.
Engine displacement; 362 c.i.d. cast iron block with steel heads.
Compression Ratio: 9:1 (Maximum).
Engine Option: Sealed or Spec. Super Late Model Engines.
Florida Spec. Super Late Model.
McGunegill Sealed Super Late Model.
Hamner Sealed Super Late Model.
Engine Option: Limited Late Model Spec. Engines – 2,650
Pounds
Florida Limited Late Model Spec Engines
Florida Limited Late Model 2-barrel carburetor
Engines.
Must have stock front clip – true LLM – FAB Chassis
add 50 pounds.
Engine Option: Crate Late Model Engines
General Motors - #88958604
Ford Motor Co. - #M-6007-D347
McGunegill Ford – ASA425LM
M O P A R – P5007958
No carburetor spacer allowed on Fords
Fords must have 1.5 rocker arms
Holley 4-barrel Carburetor – 750 cfm or Holley 4412/500 cfm 2-barrel carburetor.
Governor restrictor not required.
Engines with rear mounted distributors will be located so the forward most spark plug is no more than two inches (2”) from the center line of the upper ball joints.
Engines with front mounted distributors will be located up to four inches (4”) setback from the center line of the upper ball joints.
Crate engines may use four inch (4”0 setback.
Engines may not be off-set more than one inch (1”) from center line of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate engines must have eleven inches (11”) of ground clearance.
No overhead camshafts allowed.
Carburetors shall not exceed 750 cfm on any engine specifications – 2 inch (2”) spacer (maximum) is allowed.
A maximum sixteen inch (16”) O.D. air element and housing must be used.
Crate, Sealed or Spec. Engines must have proper seals in place, NO EXCEPTIONS.
4. FUEL SYSTEM:
Fuel samples may be taken at any time and tested.
Alcohol, nitro-methane, nitrous oxide, ether, moth balls, or any other oxygenating agents or additives are strictly prohibited. Use of such additives will result in immediate disqualification and loss of points.
No mixing of racing fuel with regular pump gasoline.
No electric fuel pumps are allowed.
No forced induction systems on any kind allowed.
No icing or cooling of fuel system allowed.
The maximum capacity of the fuel cell will be 22 gallons.
Fuel cell must have a minimum of eight inches (8”) ground clearance.
Fuel cell must be equipped with at least two (2) protective straps completely around the cell.
Fuel cell must be mounted securely behind the rear axle of the car.
All cars must have a Safety Bar at the rear of the fuel cell.
At a minimum, all fuel cells must be equipped with a “rubber bladder” inside the metal fuel container.
5. IGNITION:
All cars must have a battery powered ignition. Vehicle must start under its own power.
Maximum 16-volt battery. Car must be capable of being started with a 12-volt battery.
No magnetos allowed.
All wiring must be sealed. No unplugged wiring allowed.
All ignition boxes must be mounted on the passenger side, in plain view, and out of reach of the driver.
All wires to the distributor must be run separately and not part of a larger loom or wiring harness.
6. SUSPENSION:
No cockpit, driver adjustments, other than brake bias.
Coil springs and spindles must be steel.
No traction control devices, electronic or otherwise, will be permitted.
Use of traction control devices will be cause for immediate disqualification, loss of points, and/or suspension from future racing events.
One (1) shock per wheel (only).
7. WHEELS AND TIRES:
Ten-inch (10”) steel wheels only.
Right Side Tires: Hoosier F45.
Left Side Tires: Hoosier F45.
Bleeders are allowed.
Cars must start the feature race on the same tires on which they qualified.
Use of tire softening, hardening, or any other type of altering agents are strictly prohibited. Use of such substances or agents will be cause for immediate disqualification, loss of points and loss of prize money.
Durometer Rule may be enforced at Speedway Management or Technical Officials discretion.
8. TRANSMISSION, DRIVESHAFT, AND REAR-END:
Full standard (manual) type transmission only will be allowed.
Rankin direct-drive, other direct drive, or cluster disconnects – add 50 pounds to base weight.
No quick change or automatic transmissions allowed.
A minimum of one (1) reverse and two (2) forward gears will be required.
Multi-disc clutches will be allowed.
Conventional clutch mounted to fly wheel (only) will be allowed.
No carbon fiber or non-standard material clutches allowed.
Minimum clutch diameter is five-and – one-half inches (5.5”).
Driveshaft must be equipped with a minimum of two (2) safety straps and must be painted white.
Aluminum or Steel drive shafts (only) will be allowed.
9. BRAKES:
Cars must be equipped with four (4) wheel hydraulic disc brakes.
Only Steel rotors will be allowed.
No carbon fiber or titanium rotors allowed.
Brake fluid circulators are allowed.
Liquid or gas cooling systems are not allowed.
10 SAFETY:
Radio communication to the driver is mandatory, with a minimum of one (1) spotter for each team. Spotter must have the capability to monitor series race control with a scanner.
Approved seat belts and double shoulder harness will be required – no older than three (3) years old.
A crotch strap will be required. A sternum strap is recommended.
Head and neck restraint system will be required. Restraint system must or exceed SFI Specification 38.1 for Head and Neck Restraint Systems.
Drivers will not be allowed on the track at any time without the proper head and neck restraints in place.
Safety helmets must be equivalent to a 2000 Snell standard or better and have sticker visible for inspection. Full face helmets are required.
Clean, full “fire protection” driving suit is Mandatory, along with approved fire protection racing gloves.
Side plate for driver’s door is Mandatory. Must be twelve inches (12”) high post-to-post, 1/16-inch minimum thickness steel and must be fastened with a minimum of six (6) one-half inch (1/2”) diameter bolts, or securely welded to the satisfaction of Speedway Officials.
Driver’s window must be equipped with a safety net with quick release latch. The minimum net size must be 22 inches wide and 16 inches high. When latched, the window net must fit and pull tight.
String window nets are not allowed.
Resilient padding designed for a full roll bar must be installed on any roll cage member which can be reached by any extremity of the driver while driver is seated normally with restraints fastened.
Steering wheel must also be padded.
No lead below the frame rails.
All lead weights must be painted white, with the car number painted on each individual piece.
All lead weights must be securely fastened. No lead weights will be permitted in the driver’s compartment.
Any lost weights will result in a ten-dollars ($10.00) per pound fine.
All racing teams must have a minimum ten-pound (10 lb.) fully charged and functional fire extinguisher always while in the pit area. This must be presented during inspection. The car number must be painted on each fire extinguisher.
A main electrical cut-off switch needs to be clearly marked and easily accessible to safety crews.
Car numbers must be a minimum of twenty-one inches (21”) in height and three inches (3”) in width and must be professionally placed on each door. A third (3rd) car number will be required on top, readable from the Speedway infield.
A car number at least six-inches (6”) in height must be placed in the upper right-hand corner of the windshield.
A mandatory Roll Cage must be constructed of 1-3/4-inch OD round steel tubing with a minimum wall thickness of .090 inches. Three inches (3”) maximum gussets measured diagonally, must be welded in main roll cage area where a 90-degree angle exists, or where the roll cage meets the main frame rails.
The main frame rails and/or bolt-on clips must be steel from the radiator area to behind the fuel cell.
No part of the cooling system may be located in driver’s compartment.
The battery must be securely fastened and mounted outside the driver’s compartment.
PLEASE READ THE GENERAL RULES.
If the rules do not say you can do it, then don’t do it! Be sure to check the General Rules. All interpretations of rules by a Speedway Management or Speedway Technical Official are final. UNAWARENESS OR IGNORANCE IS NO EXCUSE!
1. CARS AND BODY GUIDELINES:
All competing cars must be stock, full-sized, American manufactured passenger cars. A-B-C Body Rules apply unless specified herein. (Refer to A-B-C Rule Book and Guidelines for details).
No panels allowed extending to top edge of doors.
Any other body configuration must be approved by Speedway Officials prior to qualifying. Weight may be added at the discretion of Speedway Officials.
Rub rails are discouraged and may only be used if they are polycarbonate.
The air box between the nose and radiator may have no pieces wider than the radiator. No types of under-body air deflectors are allowed
All air for blowers or coolers in the engine compartment must be pulled from the nose or radiator air box.
The maximum tread width for all cars is 66-inches.
All cars must go through a technical inspection prior to the car being permitted to enter the track for practice.
Cars will be weighed with the driver, and may be done prior to, or after, qualifying and prior to, or after, the feature race. Reading of Speedway scales will be official.
2. WEIGHT:
Minimum base weight 2,800 pounds, with a maximum of 58% on the left side always (without refueling).
Cars utilizing working locked rear end (i.e. a spool or similar) may deduct 50LBS off their total weight and 58.5% left side.
For post-race total weight requirements, teams may refuel, or Speedway Officials may utilize a “1-pound per lap” burn-off.
3. ENGINE SPECIFICATIONS:
Basic Engine Guidelines
Use of any engine under 347 Cubic Inches will require a 50lb penalty.
Engines with rear mounted distributors will be located so the forward most spark plug is no more than two inches (2”) from the center line of the upper ball joints. Engines with front mounted distributors: up to four inches (4”) setback from centerline of upper ball joints. Crate Engines may use four-inch (4”) setback.
Engines may not be offset more than one inch (1”) from centerline of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate Engines must be at least 11 inches.
Standard steel blocks only. No Carbon Compacted blocks of any type.
No Ford D3, SC, or other High Port heads. The following are the ONLY approved Ford heads: A, B, C, C3, and C35. These heads must remain unaltered other than porting and polishing. No altering will be allowed to change runner floor or roof height to raise port or ports, these heads will be considered high ports and are not permitted. Runner floor and runner roof heights must remain as manufactured from Ford.
No Overhead Camshafts.
A maximum 16-inch (O.D.) air element and housing must be used.
Carburetor restriction must be done with a solid plate or cone type system only and may NOT be externally adjustable in any way. No adjustments may be made to the carb/restrictor package following qualifying. Teams will race with the same package they qualify with.
Any competitor that finishes in the top 5 may be required, at their expense, to remove the intake, heads, and/or oil pan for inspection purposes.
Externally lightened blocks will receive a 25-50 lb. total weight penalty.
All oil pumps must be mounted to front of engine.
9:1 Compression Engine 362 Max Cubic Inches/Cast Iron Block
(This package may be phased out in the near future)
Cannot exceed 9.5:1 compression. Method of determining compression will be at the discretion of Officials. 8200 rpm max.
Minimum valve angle: GM-18 degrees; Ford 9 degrees with 4 degrees valve center; and Mopar 12 degrees. (+/- 2 degrees)
Steel or aluminum cylinder heads.
Steel standard production crankshaft; balancing, lightening, stroking allowed.
Any camshaft, any steel lifter, any rockers arms. Gear drives allowed.
Steel or aluminum intake. No fabricated intakes. No material may be added to production intake manifold to increase carb height. No welded-on spacers or air deflection devices allowed in intake. No part of carb spacer shall enter the intake.
390 CFM 4bbl Part #6895 or #80507. Carburetors must pass inspection at any time regardless of temperature. Booster bar may be removed from center of booster (max inside dia. of booster .473) and the booster may be tapered from the center seam down (booster must retain .700 length minimum) but all 4 boosters must be the same style. No other modifications are allowed on carbs.
1” Maximum spacer allowed but cannot extend into manifold.
Southern Super Parts Engine (SSPE)
Southern Super Parts Engine (May Be Claimed for $21,000 + pulling fee)
Maximum Engine displacement is 362 cubic inches.
Maximum compression ratio is 11.5:1 with +.5 tolerance.
Any flat top piston permitted with 927 wrist pin and .043 x .043x 3mm ring package only. Pistons must not extend out of the top of engine block. Maximum racer cost of $1400.00 per set.
Cast Iron engine blocks only.
Intake must remain stock. Absolutely no match porting or blasting of any kind permitted. Slotting of bolt holes, water lines and matching of sides allowed. Ford part #: Edelbrock 2928, 2929, or 2934 only. Chevy part#: Edelbrock 2814 or 2892 only.
Crankshaft must have a minimum weight of 40 pounds (with front timing pulley or sprocket). Minimum main size Chevy 2.300/ Ford 2.250. Maximum advertised racer cost of $1,400.00
Connecting rods: Minimum rod journal size 1.850”. Absolutely no piston-guided rods permitted. Maximum racer cost of $1400.00 per set. No titanium rods permitted. Minimum rod weight 560 grams.
Listed Brodix Cylinder Heads only. Heads may be surfaced to achieve proper compression ratio. Absolutely no other work of any kind will be permitted to the intake ports, exhaust ports, or combustion chambers. Ford part #: SP STS T-1 F STD 225-SSPE. Must retain minimum valve angle of 20°. Chevy Part #: SP STS T-1 STD 227-SSPE. Must retain min. valve angle of 21°. Multi-angle valve job permitted. Absolutely no blending of valve job below valve seat permitted. Chamber must retain shape 3/8” above valve seat. Minimal blending due to multi-valve jobs permitted.
Maximum valve size: Intake 2.08”, Exhaust 1.60”, Stem size 11/32”. Intake valve may be titanium or stainless steel. Exhaust must be stainless steel.
No Titanium valve springs permitted. Maximum racer cost: $425.00 per set. Titanium retainers permitted. Lock angles not specified.
Camshaft must be Competition Cam Part #: 21151712. Camshaft must be installed on 104° intake centerline +/- 1°. Roller lifters, maximum racer cost of $700.00 per set. Maximum lift of .715” while using 1.6 rockers checked at valve with zero lash. Maximum 1.6 rocker arm racer cost of $1,500.00 per set. Magnetic-type push rods only. No keyway guided lifters permitted.
Maximum 5 stage dry sump oil pump permitted. Max. racer cost of $1,250.00.
Oil pan must have 1” inspection hole. Absolutely no sectional pans permitted. Open box pans only (NO windage tray / scrapers etc.). Max. racer cost of $550.00.
Ignition System may only be FAST Cams Ignition part # 6000-6701. Mount on right side of car dials point out the passenger side. The mag positive & negative shall be a maximum length of 62 inches. Must be remain uncut or spliced and on top of dash in clear view. Mandatory 8000 RPM Rev Limiter must be installed and fully functional. Absolutely no crank trigger pickups permitted.
Carburetor must be an unaltered 750 CFM 4779, 80528 Holley permitted. Carburetor must pass inspection at any time regardless of temperature. Maximum 1” carburetor spacer permitted on Ford motor only. Maximum ½” carburetor spacer permitted on Chevrolet motor only. No Internally or externally lightened blocks.
“Other Engines”
S.E.A.L. approved McGunegill, Hamner. Ford 374D and Florida SPEC “Sealed Engines” may also be used. Any tampering of seals or established construction of these engines is grounds for immediate disqualification. Additional tech rules will apply. The maximum RPM is the series mandated 7600 for these engines. Rev limiting device must always be operational with RPM Dials securely covered. All Sealed engines must use the gauge legal, 750 carb as described in the SSPE section. NO Internally lightened blocks.
The “ACE” Engine as commonly used in the ARCA Midwest Tour may also be used with a 750 carb as described in SSPE engine section. Track officials may add or subtract weight to ensure fair competition. 7800 rpm max.
Legal S.E.A.L. crate engines may also be used, see economy rules section. 50lb Weight break.
Steel head engines may be allowed on a case by case basis with 750 carb.
Engine displacement; 362 c.i.d. cast iron block with steel heads.
Compression Ratio: 9:1 (Maximum).
Engine Option: Sealed or Spec. Super Late Model Engines.
Florida Spec. Super Late Model.
McGunegill Sealed Super Late Model.
Hamner Sealed Super Late Model.
Engine Option: Limited Late Model Spec. Engines – 2,650
Pounds
Florida Limited Late Model Spec Engines
Florida Limited Late Model 2-barrel carburetor
Engines.
Must have stock front clip – true LLM – FAB Chassis
add 50 pounds.
Engine Option: Crate Late Model Engines
General Motors - #88958604
Ford Motor Co. - #M-6007-D347
McGunegill Ford – ASA425LM
M O P A R – P5007958
No carburetor spacer allowed on Fords
Fords must have 1.5 rocker arms
Holley 4-barrel Carburetor – 750 cfm or Holley 4412/500 cfm 2-barrel carburetor.
Governor restrictor not required.
Engines with rear mounted distributors will be located so the forward most spark plug is no more than two inches (2”) from the center line of the upper ball joints.
Engines with front mounted distributors will be located up to four inches (4”) setback from the center line of the upper ball joints.
Crate engines may use four inch (4”0 setback.
Engines may not be off-set more than one inch (1”) from center line of car.
Front center of crankshaft must have at least ten inches (10”) of ground clearance. Crate engines must have eleven inches (11”) of ground clearance.
No overhead camshafts allowed.
Carburetors shall not exceed 750 cfm on any engine specifications – 2 inch (2”) spacer (maximum) is allowed.
A maximum sixteen inch (16”) O.D. air element and housing must be used.
Crate, Sealed or Spec. Engines must have proper seals in place, NO EXCEPTIONS.
4. FUEL SYSTEM:
Fuel samples may be taken at any time and tested.
Alcohol, nitro-methane, nitrous oxide, ether, moth balls, or any other oxygenating agents or additives are strictly prohibited. Use of such additives will result in immediate disqualification and loss of points.
No mixing of racing fuel with regular pump gasoline.
No electric fuel pumps are allowed.
No forced induction systems on any kind allowed.
No icing or cooling of fuel system allowed.
The maximum capacity of the fuel cell will be 22 gallons.
Fuel cell must have a minimum of eight inches (8”) ground clearance.
Fuel cell must be equipped with at least two (2) protective straps completely around the cell.
Fuel cell must be mounted securely behind the rear axle of the car.
All cars must have a Safety Bar at the rear of the fuel cell.
At a minimum, all fuel cells must be equipped with a “rubber bladder” inside the metal fuel container.
5. IGNITION:
All cars must have a battery powered ignition. Vehicle must start under its own power.
Maximum 16-volt battery. Car must be capable of being started with a 12-volt battery.
No magnetos allowed.
All wiring must be sealed. No unplugged wiring allowed.
All ignition boxes must be mounted on the passenger side, in plain view, and out of reach of the driver.
All wires to the distributor must be run separately and not part of a larger loom or wiring harness.
6. SUSPENSION:
No cockpit, driver adjustments, other than brake bias.
Coil springs and spindles must be steel.
No traction control devices, electronic or otherwise, will be permitted.
Use of traction control devices will be cause for immediate disqualification, loss of points, and/or suspension from future racing events.
One (1) shock per wheel (only).
7. WHEELS AND TIRES:
Ten-inch (10”) steel wheels only.
Right Side Tires: Hoosier F45.
Left Side Tires: Hoosier F45.
Bleeders are allowed.
Cars must start the feature race on the same tires on which they qualified.
Use of tire softening, hardening, or any other type of altering agents are strictly prohibited. Use of such substances or agents will be cause for immediate disqualification, loss of points and loss of prize money.
Durometer Rule may be enforced at Speedway Management or Technical Officials discretion.
8. TRANSMISSION, DRIVESHAFT, AND REAR-END:
Full standard (manual) type transmission only will be allowed.
Rankin direct-drive, other direct drive, or cluster disconnects – add 50 pounds to base weight.
No quick change or automatic transmissions allowed.
A minimum of one (1) reverse and two (2) forward gears will be required.
Multi-disc clutches will be allowed.
Conventional clutch mounted to fly wheel (only) will be allowed.
No carbon fiber or non-standard material clutches allowed.
Minimum clutch diameter is five-and – one-half inches (5.5”).
Driveshaft must be equipped with a minimum of two (2) safety straps and must be painted white.
Aluminum or Steel drive shafts (only) will be allowed.
9. BRAKES:
Cars must be equipped with four (4) wheel hydraulic disc brakes.
Only Steel rotors will be allowed.
No carbon fiber or titanium rotors allowed.
Brake fluid circulators are allowed.
Liquid or gas cooling systems are not allowed.
10 SAFETY:
Radio communication to the driver is mandatory, with a minimum of one (1) spotter for each team. Spotter must have the capability to monitor series race control with a scanner.
Approved seat belts and double shoulder harness will be required – no older than three (3) years old.
A crotch strap will be required. A sternum strap is recommended.
Head and neck restraint system will be required. Restraint system must or exceed SFI Specification 38.1 for Head and Neck Restraint Systems.
Drivers will not be allowed on the track at any time without the proper head and neck restraints in place.
Safety helmets must be equivalent to a 2000 Snell standard or better and have sticker visible for inspection. Full face helmets are required.
Clean, full “fire protection” driving suit is Mandatory, along with approved fire protection racing gloves.
Side plate for driver’s door is Mandatory. Must be twelve inches (12”) high post-to-post, 1/16-inch minimum thickness steel and must be fastened with a minimum of six (6) one-half inch (1/2”) diameter bolts, or securely welded to the satisfaction of Speedway Officials.
Driver’s window must be equipped with a safety net with quick release latch. The minimum net size must be 22 inches wide and 16 inches high. When latched, the window net must fit and pull tight.
String window nets are not allowed.
Resilient padding designed for a full roll bar must be installed on any roll cage member which can be reached by any extremity of the driver while driver is seated normally with restraints fastened.
Steering wheel must also be padded.
No lead below the frame rails.
All lead weights must be painted white, with the car number painted on each individual piece.
All lead weights must be securely fastened. No lead weights will be permitted in the driver’s compartment.
Any lost weights will result in a ten-dollars ($10.00) per pound fine.
All racing teams must have a minimum ten-pound (10 lb.) fully charged and functional fire extinguisher always while in the pit area. This must be presented during inspection. The car number must be painted on each fire extinguisher.
A main electrical cut-off switch needs to be clearly marked and easily accessible to safety crews.
Car numbers must be a minimum of twenty-one inches (21”) in height and three inches (3”) in width and must be professionally placed on each door. A third (3rd) car number will be required on top, readable from the Speedway infield.
A car number at least six-inches (6”) in height must be placed in the upper right-hand corner of the windshield.
A mandatory Roll Cage must be constructed of 1-3/4-inch OD round steel tubing with a minimum wall thickness of .090 inches. Three inches (3”) maximum gussets measured diagonally, must be welded in main roll cage area where a 90-degree angle exists, or where the roll cage meets the main frame rails.
The main frame rails and/or bolt-on clips must be steel from the radiator area to behind the fuel cell.
No part of the cooling system may be located in driver’s compartment.
The battery must be securely fastened and mounted outside the driver’s compartment.
PLEASE READ THE GENERAL RULES.