Rules

The head Tech person has the final say in the interpretation of a rule. This say will be final. If an item is not stated as allowed, it is deemed disallowed. Play by the Rules or pay the price.

Rule 1 - Car Type

1.      Any American made car (no trucks) with a factory wheel base of 108" or longer.

2.      No convertibles allowed.

3.      No four wheel drives or front wheel drive cars allowed.

Rule 2- Bodies

1.      Must be steel and remain strictly stock.

2.      Hoods may be trimmed and liner removed.

3.      Plastic After market Nose Pieces allowed. Must be Stock Appearing.

4.      No cutting or trimming of any body panel is allowed, except for bar and roll cage installation.

5.      All glass and chrome must be removed. This includes any exterior chrome, moldings, emblems, door handles, bumper guards and plastic grills. Fiberglass parts that may be subject to being broken must be removed.

6.      All flammable materials must be removed from inside the car.

7.      Steering shaft must remain in the stock location. A removable steering wheel is allowed and highly encouraged, mounted on stock or solid shaft and with shaft remaining in stock location. A solid shaft must remain the same length as a stock shaft.

8.      Bolt on accessories in the engine compartment may be removed. Bolt on accessories in the drivers’ compartment will be removed.

9.      Full uncut floorboard must extend from the front firewall to the rear bumper.  Bottom of the trunk floor may be cut out for fuel tank installation only.

10.  Inner front fender wells may be removed. Front and rear fenders maybe trimmed for tire clearance. All sharp edges must be rolled or covered.

11.  Doors must be welded shut. Other options must have Tech approval.

12.  Bumpers may be welded to help prevent loss. Each end must be turned in to prevent hooking another car. Bumpers must have OEM mounts; no after market or extra materials allowed.

13.  One bar for leg protection is allowed on the left side only.

14.  Unibody cars must have a plate, minimum 1/8" thick x 6" square, welded under the main cage legs. Plate may be securely welded to main structure of uni-body or be bolted through the structure with a matching plate on the underside.

15.  One bar no larger than 2” OD tubing (not pipe) is allowed for radiator protection. Bar can be attached at no more than 3 places per side.

Rule 3- Suspensions

1.      No modifying of suspension.

2.      All suspension parts must remain absolutely stock for make, model, and year of car. No spacers, after market parts of any kind or hold down chains allowed.3.      Rubber suspension bushings only. No polyurethane, plastic, steel, aluminum, or brass or any other material not OEM for the model used.

4.      Stock appearing or OEM springs only. Must be in stock location. No Weight Jacks. No Shims, Spacers, Levelers or Spring Rubbers.

5.      No air shocks or shocks with helper springs allowed.

Rule 4- Transmissions and rear ends

All drive train components shall be strictly unmodified stock OEM parts.

1.      Stock passenger car type transmission only.

2.      Automatic transmissions or standard are allowed.

3.      Transmission must match family of car used. Ford for Ford, Chevy for Chevy. 

4.      All cars must have forward and reverse working gears.

5.      Automatic transmissions will have a stock working  torque converter. An add on oil cooler is allowed, but must be shielded from the driver, if located near the drivers compartment. 

6.      Stock passenger car type rear end must be OEM or Ford 9”.  Must be mounted in original rear end location and with original style mounts.

7.      Rear ends may have spider gears welded or OEM posi-traction.

8.      No aluminum components allowed.

9.      Mini spools or Full spools allowed.

Rule 5- Engines

1.      No high performance engines allowed.

2.      All engine components must be strictly stock and stock OEM production availability for the make and model of car.  

3.      Engines may be interchanged within their family line only if no modifications of any kind are required and all mounting remains in stock placement. And the engine came stock in that particular car (make, model, and year).

6.      No aluminum manifolds, stock or otherwise.

7.      Stock exhaust manifolds only,  Exhaust must extend past the driver.

8.      ABSOLUTELY no machining, milling, or modifying of cylinder heads, intake manifolds, exhaust manifolds, carburetors or any portion of the cylinder block.

9.      The following must be stock OEM per the engine used: crankshaft, connecting rods and heads. All heads must be on the proper engine they were intended for. Casting numbers must match and be legible, any grinding or defacing the casting numbers shall be judged illegal. All engine and components except camshaft and lifters must remain and be OEM factory production available for engine to be legal.

10.  All cars must have a hydraulic flat tappet cam. No roller cams, no roller lifters or no roller rockers stock or otherwise. 

11.  No electric fuel pumps, stock mechanical only.

12.  Stock OEM ignition only.

13.  No out of ordinary add on equipment allowed.

14.  Carburetion will be limited to one (1) stock holly 500 CFM 2- barrel, part number 4412, with 1-11/16" inch throttle bore. No grinding or polishing of any kind allowed. All carburetor components must be for a 500 Holley. No milling or grinding of throttle shaft allowed. Shaft must stay round. Maximum thickness of gaskets and adapter plate will be 1-3/8“. Stock adapters only.

15.  Stock two or four barrel intake manifolds only.

16.  Maximum of one fixed, non-adjustable spacer allowed on four barrel intake, maximum thickness of 1-1/4". No marine or van manifolds.

17.  No air flow devices allowed below carburetor.

18.  After market oil pan is acceptable, not required.

19.  The #1 spark plug can not be mounted no further back than the front ball joints.

20.  Restrictor Plate - NOT REQUIRED.

Rule 6 - Safety

1.      Car must have a minimum of a fore point roll cage.

2.      Three door bars required on driver’s side. A fourth bar is recommended.

3.      Two bars minimum on the right side.   Third bar recommended.

4.      1-1/2"x.095 minimum mild steel tubing on main roll cage.

5.      A competition safety harness with 3" belts mounted in five points required. Belts must meet the required safe age limit for use. Belts must be fastened to a point on the frame or cage.

6.      Race type seats required.

7.      Must have window net or use arm restraints.

8.      Must have screen or bars in front of driver.   Three 3/8” bars with center roll cage bar or six 3/8” bars.   To be approved by the tech inspector.

9.      Roll bar padding will be used where the drivers head may make contact with the roll bars. This includes halo and vertical cage bars.

10.  A round bar extending forward and horizontal off the roll cage to the car frame past the firewall is allowed may attach to the frame no further forward than rear mount of the upper control arm.  This horizontal bar may not extend above the body panels between the firewall and the mount location or it may not create a crossover attachment from the left side of the car to right side, or visa versa. The bar may be a maximum size of 1-1/2” dia. and .095 thickness. This bar in no way may attach to the radiator protection bars.

11.  Drive shafts shall be painted white and have the cars number in black.

12.  No unshielded batteries in the driver’s compartment.

13.  Fire extinguishers in the drivers compartment (an option).

Rule 7- Fuel

1.      Pump gasoline only, 92 octane or less.

2.      No additives, alcohol, or exotic octane boosters allowed.

3.      Racing fuel cell required. Or approved handmade tank 1/8" thick material.

4.      Fuel system must meet safety requirements at all times.

Rule 8- Wheels and Tires

1.      Approved steel safety wheels, racing wheels, or double- plated centers on stock wheels required on all four corners.

2.      Maximum rim width 8 inches.

3.      Maximum tires size 8” Wide. (HOOSIERS ALLOWED)

4.      Grooving or siping allowed.

5.      All season tread allowed- no mud and snow tires allowed.

6.      Wheel studs will be required to be 1/2 inch diameter with 1” nuts on all four corners.

Rule 9- Weight

1.      3500 pound minimum including driver.   After the race.