Bart said:
I want to see the difference in Formula SUV and Sport Truck.
Like if I have a registered TJ, but it is the length of an LJ with bolt on LJ parts, what class would it fall into?
Do dana 60s count as a bolt on part?
Current preliminary rules for both classes.
C. Appendix C – Formula SUV Class
Formula SUV Class
Competition vehicles in class do not have to be legally registered as vehicles, but approved by Win Rock.
Engine
Restricted to front mounted, automotive engines.
Transmission/Transfer Case
No restrictions.
Frame
All stock and aftermarket frames with custom suspension mounting brackets, cross members for aftermarket parts or different engine combinations allowed. No changes in the basic frame are allowed other than cross members or mounting brackets.
Cage
See general rules.
Body
Body size restricted to OEM measurements. Bodies may not be shortened less than 24" past the rear axle.
Seats
Restricted to at least two seats mounted side by side.
Steering
Restricted to front axle steering only. Ram assist is legal as long as the original power steering box is attached to the main frame and the drag link is attached to the pitman arm and axle providing a mechanical steering linkage.
Axles
Restricted to automotive type axles only. No further restrictions apply.
Suspension
Limited to stock and aftermarket suspension kits with changes in wheel base from reactive suspension movements only.
Wheel Base
Limited to stock vehicle wheel base + or - 3" from center of axle to center of axle.
Brakes
See general rules.
Battery
See general rules.
Tires & Wheels
Tires are restricted to 35" as labeled by the side wall designation.
Fuel System
See general rules.
Safety
See general rules.
Appendix D - Sport Truck Class
Sport Truck
Competition vehicles in class do not have to be legally registered as vehicles, but approved by Win Rock.
Engine
No restrictions
Transmission/Transfer case
No restrictions
Safety Cage
See general rules
Firewall
Firewall must be intact from one side of the cab to the other. Modifications allowed as long as the integrity of the firewall is maintained.
Floor Boards
Protection for the occupants is required to protect them from flying parts in case of breakage. A full metal floor is required of 20 gage metal or aluminum from the firewall the back of the cab.
Frame
All stock and aftermarket frames with custom suspension mounting brackets, cross members for aftermarket parts or different engine combinations allowed. No changes in the basic frame are allowed other than cross members or mounting brackets.
Suspension
Limited to stock and aftermarket kits with changes in wheel base from reactive suspension movements only.
Wheel Base
Limited to stock vehicle wheel base + or - 3" from center of axle to center of axle.
Steering
All steering must use stock type mechanical boxes attached to the main frame. The drag link must attach to the pitman arm on the steering box and the differential. Ram assist and any aftermarket high steer cross over linkage is allowed.
Axles
Limited to automotive axles with no other restrictions.
Brakes
No restrictions
Battery
See general rules
Tires & Wheels
No restrictions
Fuel System
See general rules
Safety
See general rules