NEW CLASS:
Diesel Super Stock FWD Trucks
1. Weight class will operated at an 8000 lb. maximum
2. Maximum engine size will be 460 cubic inches. Engine must come 1 ton or smaller truck.
3. All inline engines are required to have a side shield consisting of .125 (1/8) thick steel or titanium or .250 (1/4) aluminum. Shield must be attached to the vehicle chassis (frame) with a minimum of 5/16 fasteners at both ends and center on the bottom and to the engine block at both ends (bolted solid or with a length of 5/16 chain) at deck height on the top. This shield must extend from the bottom of the head to the centerline of the crankshaft and extend the full length of the block on each side of the engine
4. V 8 engines are required to have a minimum of .060 steel or aluminum side shield. This shield must extend from the bottom of the head to the centerline of the crankshaft and extend the full length of the block on each side of the engine
5. No nitrous, propane or alcohol -- #2 Diesel only
6. Water injection is permitted. Alcohol, methanol, and all other flammables are prohibited.
7. Turbochargers- limited to 2 stage configuration
8. Hanging weights allowed- weights must not extend more than 60’’ from the centerline of front axle (weights must be secure)
9. 26” Hitch height
10. Wheelbase maximum 158”
11. Hitch hook point must not be less than 44” from the centerline of rear axle. Min. 3’’ X 3.75’’ drawbar opening.
12. Hitch must not exceed a max of 33 degree angle from pivot point to hook point.
13. Rigid suspension allowed
14. Drop boxes, Reversers allowed.
15. S.F.I 3.2a-1 fire suit required.
16. Snell 90 or newer helmets required.
17. S.F.I. approved clutch assembly required, (must be inspected annually like all other NTPA vehicles)
18. S.F.I. Bell housing blankets and/or S.F.I. Blow proof bell housing required
19. All U-joints must be shielded 360 degrees with 3/8” think aluminum or 5/16” thick steel. Shield will be 6inchs long minimum and centered on U-joint. Inside diameter of shield will no more than 2 inches larger than U-joint.
20. All intermediate shafts between the transmission and transfer case will be totally enclosed in 3/8” aluminum or 5/16” steel, ¼ of shaft may be visible.
21. 2.5 lb Fire extinguishers `and seatbelts required
22. Exhaust must exit vertically, minimum of cab height with (2)- 3/8” inch bolts mounted in a cross pattern as close to the turbo as possible.
23. Air shutoff’s required- consisting of (1) cable to the rear of the truck to be operated by the sled, and also a cable inside the driver’s compartment
24. Kill switch will be securely mounted to the back of the vehicle and have two inch diameter ring to attach the sled.
25. Axle shields are required. Shield to be .060” thickness steel or aluminum. Shield not to be mounted to axle ends or hub bolts. A hole may be cut in one to allow locking in of hubs.
26. 35” tire maximum height, tread width not exceed 18”
27. Cut or Sharpened tires allowed
28. Mechanical or electronic fuel injection permitted
29. Tires and wheels must stay in center of the wheel wells as intended by the manufacture.
30. All normal NTPA membership and event operations will apply.
