Street 4 X 4 Diesel Trucks
will run at 8000 lbs. Trucks must remain stock appearing. Must have upholstered
interior. Factory mounted batteries.
wheelbase permitted 158.
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
point must be no closer than 48 of centerline of rear axle, hitch height
maximum of 26, with a minimum of a 3 opening. Hitch point must be easily
accessed. No trick type hitches permitted. Hitch must be stationary in all
are limited to 2 turbochargers only. Single turbos are unlimited. For multiple
turbos, the inducer bore on the atmosphere compressor housing(s) may be no
larger than 3.0 inches measured at the smallest diameter area of the compressor
wheel. A bushing may be used to downsize the compressor housing ahead of the
wheel. If a bushing is used, it must be round, at least 3/4 inches long, mounted
within 0.050 inch of the compressor wheel, and the inside diameter of the
bushing may not exceed 3.0 inch limit. The inducer bore will be measured using a
3.05 inch plug. All provisions allowing air to the wheel other than via the bore
must exit straight up, with (2) -3/8 inch bolts mounted in a cross pattern.
cast iron clutches or flywheels permitted.
safety kill and/or air shutoff must be installed on rear of truck. Vehicle
must have a manual fuel dump valve from the drivers compartment Kill
switch will be securely mounted to the back of the vehicle and have a two (2)
inch diameter ring to attach the sled.
tanks must be securely mounted in bed of truck. No fuel lines may be inside of
chips and boxes permitted.
appearing injection pump required.
or electronic fuel injection permitted.
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
weights must be no more than 60 from the center line of the front axle to
forward most point and be securely fastened. No
rubber straps will be allowed to hold weights on vehicle
limited to Diesel fuel and Bio-diesel only. No alcohol, nitrous, propane or any
oxygen enhancing agents allowed.
train will consist of the following: Any front axle, any transfer case, any rear
axle. No planetaries permitted.
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.
Bell housing Blankets and/or S.F.I Blow proof
shafts from engine/transmission to transfer case should be totally enclosed with
no more than 1/4" visible (as on a national 4x4).360
degrees shields must be 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. 3
drive shaft loops will be mandatory on each drive shaft and be made of 5/16
steel or 3/8 aluminum
modifications are permitted. Removable suspension blocks are permitted.
Extinguishers, helmets, and seatbelts required.
Fire Suite is recommended
may be trailered to the event.