Class 8/ 8000
PRODUCTION FULL-SIZED TRUCK / SUV’S Vehicles built from a two or four-wheel drive full-sized truck / SUV. Vehicle must have been series produced in quantities of at least 4000 units within a 36-month period.
There must be a minimum of 4000 series vehicles sold to the general public in the U.S.A. within a 36-month period. Vehicle must be readily available to the general public in the U.S.A. Vehicle must be marketed as full-sized truck /SUV.
GENERAL REGULATIONS Class entrants shall comply with all class and applicable general regulations COMPETITION REGULATIONS Body, engine, and chassis must be from the same manufacture. This is an
open class and all parts will be considered open unless restricted herein.
Vehicles that have previously raced and do not meet our current rules or regulation, may submit for
Technical Director approval.
SUSPENSION COMPONENTS Front suspension must be of the same configuration as originally produced
and installed on the chassis to which it is mounted. Suspensions may be strengthened and reinforced
in any manner so long as original stock concept (a-arm, I-beam, etc.) is retained. Pivot points are open.
Ball joints may be of any manufacturer. Spindles may be of any manufacture and may be reinforced.
Vehicles with straight axle front ends may modify suspension configuration to utilize a four link and c
oil over shock system. Rear suspension must utilize an automotive straight axle differential. Suspension s upport system is open (quarter-elliptical, coil-over shocks, four-link, etc.). Outboard mounted rear springs are permitted. Spring rates and capacities are open. Front and rear wheel travel is open.
SHOCK ABSORBERS & BUMP STOPS
Number of shocks and mounting methods are open. Mounting points may be strengthened and design modified. Remote mounted shocks are permitted. Hydraulic bump stops are permitted. Front shocks
may not protrude through hood.
Secondary suspension is permitted.
WHEELS & TIRES –MAX SIZE 40”
FASTENERS STEERING & BRAKE COMPONENTS
STEERING Steering box location is optional. Steering box mounting may be reinforced by adding material. Power steering is permitted. Steering box may be replaced. Steering parts (tie rods, tie rod ends, idler arms, relay rods, and turning arms) may be specially made. Heim joints are optional. Any manufacturer steering wheel may be used.
FUEL TANKS Safety fuel cells are required. Fuel cell location must be behind cab. Fuel cell may be sunk into the bed. Rear frame cross members may be relocated or replaced in order to sink fuel cell.
ENGINE TRANSMISSION & DRIVELINES
ENGINE LOCATION & DISPLACEMENT Engine must be produced by the same manufacturer as frame and body.
Any displacement engine may be used. After market block may be used, if aluminum block, it must be same manufacture as frame and body. Engine must be readily available to the general public in the USA. Engines must be mounted in the front of the vehicle like a truck with all pulleys facing forward. No mid-engine chassis configuration. Any make of automotive carburetor may be used but is restricted to one (1) four-barrel.
Stock factory fuel injection or any one (1) aftermarket Throttle Body Injection (TBI kit) may be used with approval of Tech Director. Special Note: Ford Production turbocharged V6 gasoline engine (EcoBoost)
allowed in Class 8000. Items with no restrictions include: A. Strengthening and balancing. B. Valve train
and camshaft. C. Bore and stroke. D. Pistons E. Blueprinting. F. Oil and water-cooling systems. Dry sumps are permitted. G. Heads H. Air cleaners. I. Fuel pumps. J. Exhaust systems (must have muffler or spark arrestors.) TRANSMISSION Transmission is open.
DIFFERENTIAL Rear axle assembly must use an automotive type straight axle housing and third member.
Gear ratios, carriers, axles, and floating hubs are optional. Knock-off hubs are permitted. Axle tubes may be replaced.
SEATING Any Manufacturer’s racing seat may be used but must remain in the approximate stock location.
DRIVER’S COMPARTMENT If the full stock cab is not being utilized, metal sheeting must be installed on the sides of the rollcage by the occupants to afford protection in event fiberglass doors are damaged or missing. The sheet metal must extend from the front firewall to behind the seats and from the floor to the horizontal bar at t he approximate height of the door’s windowsill. Sheet metal must be attached to the top of the cage if a fiberglass roof is used. Vehicles utilizing a stock cab are exempt from the sheet metal sides but it is recommended if utilizing fiberglass doors.