Here are the rules to our local pulls in this area, some of them are a little weird. Is rule # 7 common around? I am on the tech commity but was not involved in writing the rules.
Diesel 4X4 Pickups
1. Radiator must be in factory location.
2. OEM Transmission and transfer case are required. They must be from a one ton chassis or smaller.
3. OEM chassis is mandatory, the engine must be in factory location. No wheel tubs, backhalfs, or tube chassis, flatbeds are allowed.
4. No Dyed or high performance fuels. On road clear diesel must be used.
5. Hitches with reinforcements are allowed. No trick hitches. The hitch must be the rear most point of the vehicle excluding exhaust.
6. A stock suspension is required. The use of ladder bars, traction bars are permitted. Reinforcements for the steering are permitted.
7. OEM cylinder heads with no cutting or welding or moving of ports are required. Porting is allowed as long as the head has not been modified to do so.
8. No solid suspensions, all vehicles must have at least one inch of travel.
9. All vehicles must be street driven with mandatory functional headlights, taillights and reverse lights.
10. Injection systems are limited to no more than two high pressure common rail Pumps (commonly known as CP3 pumps) or one P series injection pump with maximum of 13mm barrels and plungers. Common rail systems are limited to one injector per cylinder. Injection style pumps are limited to one barrel and plunger per cylinder.
11. Air to air intercooling only is allowed. No water to air intercooling or air to water intercooling. After market air to air intercoolers are allowed.
12. Must be full bodied truck with interior and wipers etc…
13. A loop on the drive shafts is strongly recommended. Must be made of at least ¼” thick steel or 3/8” thick aluminum will be mandatory. In the future on all drive shafts that are visible from the side of the truck.
14. A 2. 8” maximum turbo inlet with no more than one- ¼” map width enhancement is allowed, any other provisions allowing air to enter the charger are prohibited. Trucks are limited to one charger. Trucks with multiple chargers are to run at 300# less per turbocharger (ex. Twin chargers run at #8200, three chargers run at #7900 etc…).
15. A minimum of a 3x 3. 5” opening for the hitch is required. A 26” hitch height will be enforced and is measured from the top of the hitch. The hitch must be horizontal or parallel to the ground and must be solid in all directions. No loose clevises.
16. No cut or bar tires. DOT approved tires only.
17. Hanging weight is permitted as long as weight does not extend forward more than 60” from the center of the front axle.
18. Exhaust must be blown up or down. Two 3/8” bolts must in the exhaust in a cross pattern as close to the turbocharger as possible.
19. All drivers must wear seat belts.
20. All drivers must wear helmets.
21. No nitrous oxide. If so equipped, all components must be disabled. No other oxygen extenders whatsoever may be used.
22. No propane injection. If so equipped, all components must be disabled.
23. Water injection is allowed. Water ONLY, no alcohols, or other foreign substance additives. A pump lube may be used.
24. Weight limit will be 8500lbs. unless there is a handicap applied.
25. OEM cylinder blocks and heads from 1 ton or smaller vehicles must be used.