Bison Racing LLC Buffalo Dave's SXS Challenge
Bison Racing LLC Buffalo Dave's SXS Challenge
The Pro Production N/A UTV class vehicles are built using production UTVs manufactured by registered companies that issue VIN numbers. Companies must produce a minimum of 1,000 units per year to be accepted. UTVs must have two seats* (1 seat for RS1) and normally aspirated OEM engines must be used with a maximum engine size of 1,000cc*. Must use a hood, grill, front and rear fenders from the UTV. All suspension mounting points must be in the OEM location. Shocks must mount in the OEM locations. All suspension components must be the same dimensions as delivered by the OEM manufacture. All engines must remain stock as delivered from the OEM from the intake edge of the throttle bodies to the edge of the exhaust flange. Must use OEM engine electronics. Must use OEM transmission and differentials.
The following are allowed: exhaust header & muffler, air box and filters, clutching and transmission gears, OEM computer reflashing. After market suspension components allowed as long as the OEM pivot locations and geometry are retained. Shocks, springs and valving are open. Components that add reliability may be allowed (manual tensioners, head studs, relocated cooling etc). Chassis and suspension reinforcement allowed