2. Roll cage. Roll cages shall be at least 1 inch .083 wall thickness mild steel, or 1 inch .065 wall thickness

chromoly steel minimum. The front section of the cage shall be no further back than the steering wheel. Roll cage shall have sufficient fore and aft bracing and strength to support the weight of the car & driver in case of an upset. Cage shall have gussets at the intersecting bars to the uprights. Bends must have at least 3 inch radius. No square or pointed corners allowed. Roll cage must be a minimum of 3 above the driver’s helmet. It is mandatory to install a cross brace behind the seat to support the shoulder harness.

3. Cockpit Controls. On and off switches must be on dash, top of the cowl or on steering wheel. On/off switch must be functional. No radio communication is allowed with the car or the driver. Cockpit controls: carb adjusters, kill switch and engine monitor. No wing sliders or pan hard adjuster driver operated in cockpits.

4. Fuel. Racing gas will be Sunoco Purple (110 octane or less) or pump gas not to exceed the racing gas octane.

5. Weight. "J" Class cars, minimum car and driver weight 400 lbs.

6. Suspension. Coil-over shock suspension only. Tread; Maximum 46 inches. Minimum 32 inches, center to center of tires. Wheelbase; Maximum 52 inches. Minimum 50 inches, center of front axle to center of rear axle. Rear axle to be steel only 1 1/4" min dia. Steering; Front wheels must be connected by a solid or tubular tie rod. Rear wheel drive only. All suspension bolts except wheel nuts must be secured by some type of locking device.

7. Shocks. Aluminum or steel body shocks are legal.

8. Tires And Wheels. Wheels to be 8" dia. steel or aluminum non-bead-lock only. Right rear spec tire to be 10 x 8.50 x 8 American Racer (McCreary) stamped NMMA SD44. Can groove or sipe all tires. Wheels must be held on with 4 or more standard lug nuts or knock-off hubs.

9. Bodies. All cars must have complete bodies of Sprint Car design only. Tail sections must be in place for time trials and all races. There must be a metal firewall between driver and engine, made of 24 gauge steel or .0625" aluminum. Body of car must be made of aluminum, metal, fiberglass or high impact plastic. All cars must be painted an attractive color or colors. No rear view mirrors. The only part of the car allowed to be dismantled for driver to enter or exit is a quick release steering wheel hub.. Mud-guards must be aluminum, metal, fiberglass or high impact plastic. There will be no tops or body encasements allowed. Minimum opening on the right side of the car will be 14" from top of roll cage to the top of the mud guard or sissy bar and 16" minimum from front down tube to the back. All mechanically operated devices must be mounted below the driver’s shoulders for safety. All fuel tanks must be equipped with a one-way check valve designed to prevent the spillage of fuel from the fuel tank vent in the event of a rollover.

10. Transmission. The drive will be by engine or jackshaft mounted clutch. No axle mounted clutches allowed.No direct drive will be allowed. Chain guards will be made of .090 inch thick aluminum or equivalent and will run on top of chain from the front of the front sprocket to the center of the rear axle. Driver must not be able to touch the chain or sprockets while sitting in the cockpit.

12. Hubs. Front hubs; Go kart type with 5/8" bearings and 5/16" wheel studs minimum. Rear hubs; Douglas 5 x

130 Go kart type or equivalent.