dmaxlover
12-07-2008, 03:47 PM
These are off the shelf PPL rules.
Pro Street Diesel Trucks
1. Class will run at 8000 lbs. Trucks must remain stock appearing.
2. Maximum wheelbase permitted 158.
3. Maximum engine size will be 460 cubic inches. Engine must come from factory in one ton or smaller pickup truck. Engine must remain in stock location as intended by manufacturer.
4. Front of engine block can be no farther forward than 17 of the centerline of the front axle.
5. Hook point must be no closer than 44 of centerline of rear axle, hitch height maximum of 26, with a minimum of a 3.5 X 3.0 opening. Hitch point must be easily accessed. No trick type hitches permitted. Hitch must be stationary in all directions.
6. One turbo with one pressure stage permitted. Maximum of 3.0 opening on intake wheel. Map width enhancement is allowed. Compressor wheel must protrude into three inch bore Intake housing may not exceed three inches Turbo mounting plates are permitted.
7. Exhaust must exit straight up, minimum of cab height with (2) -3/8 inch bolts mounted in a cross pattern.
8. No cast iron clutches or flywheels permitted.
9. Fuel safety kill and/or air shutoff must be installed on rear of truck. Kill switch will be securely mounted to the back of the vehicle and have a two (2) inch diameter ring to attach the sled.
10. No fuel lines or tanks permitted inside of truck cab unless securely mounted in marine box.
11. Computer chips and boxes permitted.
12. Fuel Systems: Largest fuel injection pump allowed will be a P-pump with only one plunger per cylinder. (No Sigma pumps)
13. Stock appearing fuel injection pump permitted.
14. Must be D.O.T. approved tire. Maximum tire height 35. No studded tires or chains. No alteration to tires allowed. No bar or terra tires. Dual rear wheels are permitted.
15. Water injection permitted.
16. Front weights must be no more than 60 from the center line of the front axle to forward most point and be securely fastened.
17. Fuel limited to Diesel fuel and Bio-diesel only. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
18. Drive train will consist of the following: Any front axle, any transfer case, any rear axle. No planetaries permitted.
19. 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.
20. S.F.I Bell housing Blankets and/or S.F.I Blow proof Bell housings required
21. All U-joints must be shielded 360 degrees with 3/8 thick aluminum or 5/16 thick steel. Shield will be 6 inches long minimum and centered on U-joint. Inside diameter of shield will no more than 2 inches larger than U-joint.
22. All intermediate shafts between the transmission and transfer case will be totally enclosed in 3/8 aluminum or 5/16 steel,1/4 of shaft may be visible.
23. Suspension modifications are permitted. Removable suspension blocks are permitted.
24. Fire Extinguishers, helmets, and seatbelts required.
Pro Street Diesel Trucks
1. Class will run at 8000 lbs. Trucks must remain stock appearing.
2. Maximum wheelbase permitted 158.
3. Maximum engine size will be 460 cubic inches. Engine must come from factory in one ton or smaller pickup truck. Engine must remain in stock location as intended by manufacturer.
4. Front of engine block can be no farther forward than 17 of the centerline of the front axle.
5. Hook point must be no closer than 44 of centerline of rear axle, hitch height maximum of 26, with a minimum of a 3.5 X 3.0 opening. Hitch point must be easily accessed. No trick type hitches permitted. Hitch must be stationary in all directions.
6. One turbo with one pressure stage permitted. Maximum of 3.0 opening on intake wheel. Map width enhancement is allowed. Compressor wheel must protrude into three inch bore Intake housing may not exceed three inches Turbo mounting plates are permitted.
7. Exhaust must exit straight up, minimum of cab height with (2) -3/8 inch bolts mounted in a cross pattern.
8. No cast iron clutches or flywheels permitted.
9. Fuel safety kill and/or air shutoff must be installed on rear of truck. Kill switch will be securely mounted to the back of the vehicle and have a two (2) inch diameter ring to attach the sled.
10. No fuel lines or tanks permitted inside of truck cab unless securely mounted in marine box.
11. Computer chips and boxes permitted.
12. Fuel Systems: Largest fuel injection pump allowed will be a P-pump with only one plunger per cylinder. (No Sigma pumps)
13. Stock appearing fuel injection pump permitted.
14. Must be D.O.T. approved tire. Maximum tire height 35. No studded tires or chains. No alteration to tires allowed. No bar or terra tires. Dual rear wheels are permitted.
15. Water injection permitted.
16. Front weights must be no more than 60 from the center line of the front axle to forward most point and be securely fastened.
17. Fuel limited to Diesel fuel and Bio-diesel only. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
18. Drive train will consist of the following: Any front axle, any transfer case, any rear axle. No planetaries permitted.
19. 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.
20. S.F.I Bell housing Blankets and/or S.F.I Blow proof Bell housings required
21. All U-joints must be shielded 360 degrees with 3/8 thick aluminum or 5/16 thick steel. Shield will be 6 inches long minimum and centered on U-joint. Inside diameter of shield will no more than 2 inches larger than U-joint.
22. All intermediate shafts between the transmission and transfer case will be totally enclosed in 3/8 aluminum or 5/16 steel,1/4 of shaft may be visible.
23. Suspension modifications are permitted. Removable suspension blocks are permitted.
24. Fire Extinguishers, helmets, and seatbelts required.