Maded24v what part of Michigan are you from? I've run WS competitively the past 3 years in MI, as well as IN and OH. So the rules you've expressed are nothing that I've come across and the only place I haven't pulled is up in the thumb, I'd be interested in where the rules originated and maybe offer assistance where I can.
West Michigan Pullers
8,200 lb Street Diesel Truck Rules
2018
All decisions made by a WMP official are final.
STREET DIESEL
The Street Diesel class is designed for full -bodied pulling trucks with a maximum weight of 8,200 lbs. The
truck also needs to be licensed and insured. Trucks may enter into only one class per event. Pulling order
will be determined randomly by tractor pulling software.
DRIVERS: Must be 16 years of age. All drivers must have a valid driver’s license. Drivers shall not be
under the influence of drugs or alcohol, and must drive their trucks in a safe manner at all times when at
the pull.
BALLAST: Hanging weights are prohibited. Ballast may be added in the bed of the truck and must be
secured.
DRIVELINE: An OEM transmission and transfer case is mandatory. It must have been optioned in a one-
ton or smaller pickup.
DRIVER RESTRAINT SYSTEM: The OEM restraint system is mandatory and must be worn.
ENGINE: The engine is limited to a stock appearing, OEM make-specific compression ignition engine.
EXHAUST: All vehicles must be equipped to direct exhaust upward or downward.
FUEL INJECTION PUMP: The fuel injection pump is limited to a stock appearing, OEM engine model-
specific pump only. Twin CP3’s and Hpop’s are prohibited.
HITCH: The hitch must be a “REESE” style hitch. Reinforcements are permitted, but hitch mount MUST
remain in stock factory location. Trick hitches are prohibited. The hitch height from the ground may not
exceed 26" for 4x4 and 30" for 2x4. Must have a hook point at least 44 inches from the center of the rear
axle and be rearward of the factory location of the tailgate. The hooking point must have a minimum 3.00
inch by 3.75 inch inside diameter opening for the sled hook.
NITROUS OXIDE: Nitrous oxide is prohibited. No other oxygen extenders are allowed.
PROPANE: Propane is prohibited.
REAR SUSPENSION: Traction bars and devices are allowed. Bump stops are prohibited. Suspension
must maintain full factory shock travel.
TIRES: Tires must be DOT street tires. Cut tires are prohibited. A maximum tire diameter of 35 inch.
TRANSMISSIONS: Transmissions (manual and automatics) must have a transmission blanket meeting
SFI 4.1 if running more than 4500 rpm.
TURBOCHARGER: The turbocharger is limited to a stock, OEM make-specific charger only.
Turbochargers from different years in the same make may be interchanged.
WATER INJECTION: Water injection is prohibited.
I'm from west Michigan, oceana/Muskegon county area. Ok these are the rules for last year, the rules will be updated and as to my knowledge nothing will change EXCEPT the turbo charger rule, which I had been updated about the week after they had their meeting and changed it, the new rule will be as I think I mentioned before, "any non common railed engine may run up to a 66mm turbo, any common rail equipped engine must run stock/oem style charger". No it's not updated yet but will be hopefully soon. It will bring alot of dosge guys back out to compete I'm guessing hopefully make it something other than all Duramax ��