MODIFIEDS
Required:
The following tires may be used on all four corners
Goodyear G65 & G50 (grooving & siping allowed)
Hoosier 35 (siping & grinding only allowed)
American Racer G60 or KK704 (grooving & siping allowed)
Optional:
- Tubular lower A-Arms with stock configuration are allowed. Screw in style ball joint is required.
- Rear body panel is optional.
- Aluminum J-Bar mounts allowed.
- Beadlock allowed on right front wheel
- Quick change rear ends are allowed. Steel tubes only, 10" ring gear only allowed, magnesium or titanium components are not allowed, pinion & carrier bearings must be tapered, wide 5 bolt pattern is not allowed.
- USRA aluminum spec headed engine must weigh 2500 lbs with 50 lbs in front of engine plate after race. Cars with this engine may run a 7" spoiler and are required to run American Racer G60 or KK704 and 8,000 rpm chip.
- Regional spec engines must weigh 2450 after race. Maximum 5" spoiler.
- 406 engines are allowed with non-roller flat top rocker arms. No roller cams. Must weigh 2450 after race. Maximum 5" spoiler.
- Non-Spec headed engines are allowed with the following provisions. Approved Heads: Chrysler and Ford cast heads. In addition W-2 & SVO but cannot be ported. Chevrolet straight plug heads with the following castings numbers: 040, 041, 041x, 186, 187, 291, 461, 461x, 462 & 492. These heads may be ported. Angle plug or turbo heads are not allowed. Roller rockers are allowed. Roller cams or raised intake runners are prohibited. Non-Spec cars must weigh 2450 lbs with driver after the race. Maximum 5" spoiler.
PRO STOCKS
Required:
The following tires may be used on all four corners.
- Goodyear G65 & G50, or Hoosier 35 (Grooving and siping are allowed)
Optional:
- Swiveling spring cups are allowed.
- Rear body panel is optional.
- 5" spoiler allowed measured from top of interior deck.
- Non-shaft roller rockers are allowed. No stud girdles.
- GM 602 & 604 Crate engines are allowed. Cars using the GM crate engine may use a Holley 750 or smaller carburetor. No alterations to the engine inside the bolts allowed. Rebuilds or repairs must be performed by CLS approved rebuilder.
MIDWEST MODIFIEDS
Required:
The following tires may be used on all four corners.
- Goodyear G65 & G50 or Hoosier 35 (Grooving & siping are allowed)
- Compression Rule- 170 PSI Compression Maximum. Compression will be checked with absolutely NO tolerance over the 170 PSI limit.
Optional:
- Bert, Brinn or Falcon transmissions are allowed. Ball spline couplers or magnesium components are not allowed.
- Cars using 3 link suspension must weigh 2,550 lbs with driver after race.
- Cars using 3 link suspension & using a Bert, Brinn or Falcon transmission must weigh 2650 lbs with driver after race.
- Cars using 4 link suspension must weigh 2600 lbs with driver after race.
- Cars using 4 link suspension & using a Bert, Brinn or Falcon transmission must weigh 2700 lbs with driver after race.
HORNETS
All drivers must be 16 years of age or older. All drivers under 18 years of age must have a signed, notarized minor’s release requiring a parent or guardian signature.
Car and Body Rules
1) Any 4-cylinder car with a maximum wheelbase of 105.5”. No Pintos, trucks, T-tops or convertibles.
2) Cars must be strictly stock with NO modifications. This includes all engine components, drive train, suspension, ignition system or cooling system, exhaust system, and axles (exhaust system does NOT need a catalytic converter, but must have a muffler).
3) No chopping, channeling, bracing or shortening of frame allowed (door plates may be used for safety only). No exceptions. Full steel body must remain original and intact at all times. No rub rails or sharp edges on outside of body.
4) Passenger tires only. Wheels and tires must be of like size on all four corners. Right front wheel MUST be reinforced to prevent its loss during race. Plating washers and/or oversized nuts must be used. Tire size: any size original stock rim is acceptable. Max tire width is 7.5". No altering tires in any way. No mud or snow tires (i.e. those designed specifically for mud or snow. Regular road tires that say "M&S" are acceptable). No bias ply tired allowed. No pipes or protectors welded over tire valve stem. Hubcaps must be removed.
5) No turbos (or superchargers) allowed. One stock carburetor (2 or 4 barrel) or fuel injection only.
6) Batteries must be located in original position under hood and securely fastened.
7) Hoods and deck lids must have original hinges or pins/chains keeping them in place or they must be removed.
8) The stock steel floor pan, firewalls, truck floor, and wheel wells must be retained.
9) All cars must have a windshield or, if windshield is removed, car must have bracing over the windshield area covered with mesh. All other glass and trim must be removed including headlights, taillights, and all mirror assemblies. No broken glass allowed in car. Windshield wipers and washers are highly recommended if windshield is intact.
10) Must have steering wheel, steering column and pedals in stock position (removable steering wheels are acceptable).
11) Car’s interior must be completely gutted except dash and front seat. Dash can be removed also if you wish.
12) Stock seat allowed but racing seat recommended.
13) All doors must be welded, chained, or bolted shut. If driver’s door comes open, the car will be disqualified.
14) Bumpers must be chained or reinforced to frame to keep it from dropping onto the track.
15) Mufflers are mandatory.
Safety
1) Fire suit required. Gloves, boots and neck collar are highly recommended.
2) Full face helmet required.
3) Racing type seat belt and harness required. Minimum of four-point safety belt system required. Five-point harness recommended.
4) Four post roll bar (at least .095 x 1.625 steel tubing) mandatory with steel mounting plates on each end welded and/or bolted to the floor pan. If bolted, minimum of four ½” bolts on each plate. In addition, the “hoop” portion of the roll bar will be reinforced with a minimum of .095 x 1.625 steel tubing. See diagram below for proper installation. Roll bar must be located directly behind the driver and reach as close as possible to the roof and left side of car. Six point roll bar or more strongly recommended.

5) A minimum of one .095 x 1.75 steel bar to protect driver from side impact is mandatory. One end should be welded halfway up roll and continue to in front of driver’s seat. Mounting plate required on end of bar and welded and/or bolted to the floor pan. If bolted, minimum of four ½” bolts on plate. Driver's side door plates are allowed.
6) Driver compartment bracing must remain inside driver’s compartment and may not pass through any firewall.
7) Extra bracing may be installed as a safety feature only and may not reinforce the body or frame or alter the geometry of the car. Roll bar installation is subject to inspection and will be closely scrutinized.
8) Gas tanks located above or in front of rear axle do not have to be relocated. All others must be replaced with a fuel cell (maximum 12 gallons) or boat tank (maximum of 6.6 gallons). Fuel cell/boat tank must be secured and located in the front of the trunk. The fuel line must exit from the top or side of cell/boat tank. A complete firewall must seal the trunk area from the driver’s compartment if the fuel tank is placed in the trunk. No gas line in driver’s compartment.
Claim Rule
1) Competitors finishing in the top 10 & on the same lap may claim the winner of the feature event only for $1,000 less fuel cell (if used), fire extinguisher, racing seat and harness system. If the driver refuses the claim, he/she loses all prize money, points and will not be allowed to compete at Cedar Lake Speedway for remainder of the year.
Miscellaneous
1) Mascots, decorating cars, advertising nicknames, cartoons, etc. are encouraged. Mascots and decorations must be secured to not fall off on track will racing.
2) No suggestive language, symbols, or numbers allowed on car. Anything on the car in bad taste will mean disqualification.
3) Your car number should be painted on both sides of the car in contrasting colors at least 18 inches high and 5 inches wide. It must be legible and fill the entire door space.