Class 6800 6800 - 6899
Unlimited chassis and suspension truck or SUV with limited engine, drive train and tire size.
Unlimited chassis and suspension truck or SUV with limited engine, drive train and tire size.
Last Updated May 15, 2024
DEFINITION
Unlimited 4 wheel, 2 wheel drive vehicles. Vehicles must have a production appearing Utility or Sports Utility body. Engines limited to approved sealed engines as supplied by Unlimited Off-Road Racing engine suppliers. See Unlimited Off-Road Racing engine builders list.
GENERAL REGULATIONS
Entrants in this class shall comply with all applicable general regulations.
TECHNICAL REGULATIONS
This class is an open class and all components will be considered open unless restricted herein.
NOTE: The TR abbreviations listed under this class (I.E. TR1 HELMETS) refer to TR cross reference listings in the front of this book. These TR cross-referenced listings are part of the class rules. Where a conflict occurs between the TR cross-referenced listing and a rule contained under this class, the rule contained under this class takes priority.
SAFETY EQUIPMENT
TR1 HELMETS
TR2 PROTECTIVE CLOTHING
TR3 EYE PROTECTION and DENTURES
TR4 HEAD AND NECK RESTRAINTS
TR5 FIRST AID KIT
TR6 EMERGENCY SIGNALING DEVICES
TR7 HORNS
TR8 REFLECTORS
TR9 FIRE SUPPRESSION EQUIPMENT
TR10 SURVIVAL SUPPLIES
SUSPENSION COMPONENTS
TR11 SHOCK ABSORBERS and BUMP STOPS
TR12 SECONDARY SUSPENSION
TR13 WHEELS and TIRES
Maximum tire size is thirty seven (37) inches.
TR14 FASTENERS
STEERING and BRAKE COMPONENTS
TR15 STEERING
TR16 BRAKES
ELECTRICAL SYSTEM
TR17 IGNITION
TR18 BATTERIES
TR19 LIGHTS
TR20 STARTERS
FUEL SYSTEM
TR21 FUEL
TR22 FUEL TANKS
TR23 FUEL FILLERS LINES, VENTS, and CAPS
Fuel cell mandatory.
ENGINE, TRANSMISSION and DRIVELINES
TR24 ENGINE and ENGINE DISPLACEMENT
Engine is limited to a sealed V8. Only the following engines are permitted; General Motors LS3 430 HP 19301326, or 19370416. Must use LS3 engine control kit 19258270, or 19354328.
Ford 5.0L V8 engine part number M-6007-M50C. Must use engine control kit M-6017-M50B.
Ford 3.5 Ecoboost engine. Must use engine control kit M-6000-35TK
Ford 351 V8 part number M-6007-S374W.
Engines must be obtained and sealed by a Unlimited Off-Road Racing approved engine supplier.(see Unlimited Off-Road Racing
approved engine builder list)
All engines restricted to stock wet sump oil pans. Oil pans may be modified for fit. No dry
sump oil systems allowed.
All engines may use aftermarket fuel rails.
Any water pump, alternator, power steering pump may be used.(No electric water
pumps)
Oil accumulators are allowed.
Any manufacture wiring loam may be used.
TR25 ENGINE REPLACEMENT
TR26 TRANSMISSION
Turbo 400 transmission only. Any aftermarket case allowed.
No under/over drives allowed.
Must use ford nine(9) inch style rear differential.
TR27 THROTTLES
If engine is supplied with an electric throttle body a fly by wire throttle pedal must be used.
TR28 EXHAUST
TR29 DRIVE SHAFTS
TR30 FLYWHEEL SHIELDS
TR31 FLUID COOLERS
TR32 AUXILIARY EQUIPMENT
TR33 SUPERCHARGERS and TURBOCHARGERS
VEHICLE SAFETY EQUIPMENT
TR34 ROLL CAGES
TR35 SAFETY HARNESS
TR36 SAFETY NETS
TR37 SEATING
Must have a minimum of two (2) seats. Three (3) seats may be used with pre approval of Unlimited Off-Road Racing technical.
GENERAL VEHICLE COMPONENTS
TR38 DRIVERS COMPARTMENT
TR39 DOORS AND LATCHES
TR40 FIREWALLS
TR41 BALLAST
TR42 WEIGHT
TR43 FLOORBOARDS
TR44 BUMPERS and HAZARDOUS PROTRUSIONS
TR45 MIRRORS
TR46 SKID PLATES
TR47 STORAGE
TR48 CHASSIS and BODY
Wheelbase and track width are open.
Must use straight axle rear suspension.
Body must appear as a utility or sports utility body. Bodies are subject to Unlimited Off-Road Racing approval.
TR49 HOSES
TR50 IDENTIFICATION MARKINGS
Unlimited Off-Road Racing will assign race numbers.