JoeyD23
#utvunderground
http://www.vorra.net/forms/Rule Book 2011rev1.pdf
UTV
UTV800 & UTV1000
Vehicles built using production UTV’s, a.k.a. “side-by-sidesâ€, manufactured by registered
companies that issue VINs. Companies must produce a minimum number of units to be
accepted. UTV’s have 2 seats minimum. OEM engines must be used.
GENERAL REGULATIONS
Class entrants shall comply with all class and applicable general regulations.
COMPETITION REGULATIONS
This class is a production class. Anything not built in compliance with the spirit of the class
may be deemed ineligible to collect points, trophies, prize funds, and contingency.
Manufacturer’s body, chassis, engine, transmission, and differentials must be retained. All UTV
vehicles must have a driver and a co-driver in the vehicle for the duration of the race during
desert races.
Note: All universal rules apply unless specified. The URxx abbreviations are provided. Where
a conflict between the cross-referenced listings and a rule contained under this class occurs, the
rule contained under this class has precedence.
SUSPENSION COMPONENTS
All suspension arm mounting points must remain the stock design, and remain in the stock
location as delivered from the manufacturer; however they may be reinforced for strength.
UR16: SHOCK ABSORBERS & BUMP STOPS
There must be at least one and only one shock absorber per wheel in working condition at the
start of the race. Shock absorber mounting points may be moved. Suspension bump stops must
be of the solid type.
UR17: SECONDARY SUSPENSION
Secondary suspension is not permitted.
UR18: WHEELS & TIRES
Maximum tire size is 30 inches outside diameter. No multiple tires per corner permitted. Lug
nut thread engagement must be equal to the diameter of the wheel stud used, if closed “acornâ€
style lug nuts are used the competitor must bring the tools to technical inspection and remove a
lug nut to verify thread engagement.
UR19: TIRE TRACK WIDTH
Max width outside of tire to outside of tire is 76", and wheel base must not exceed 8" over stock
dimensions.
STEERING & BRAKE COMPONENTS
UR22: STEERING
Power steering is permitted.
UR23: BRAKES
Turning or steering brakes are not permitted.
ELECTRICAL SYSTEM
UR25: BATTERIES
Batteries must be securely mounted with metal attachments.
Batteries may be located in the driver’s compartment provided they are fully surrounded with
aluminum or sheet metal. 65
UR29: FUEL TANKS
Safety fuel cells are required Stock fuel tanks will be allowed for short course. All fuel vent
lines must be routed up and around the perimeter of the “B†pillar roll cage structure and vented
to the rear and away from occupants. VORRA recommends a shield installed between the stock
fuel tank and occupants for short course events
ENGINE TRANSMISSION & DRIVELINES
UR31: ENGINE LOCATION & DISPLACEMENT
Engine must be located in the manufacturer’s OEM mounting location. Vehicles must use OEM
engine cases, pistons, cylinders, and heads are open.
UTV800 maximum engine displacement is 800cc.
UTV1000 maximum engine displacement is 1000cc
Vehicles must use the same fuel delivery system as stock and designed by the factory. Electric
fuel pumps are permitted.
UR33: TRANSMISSION
Every vehicle must use the stock transmission and clutch design, have a functional reverse gear
if so equipped from the factory, and use the stock differential.
VEHICLE SAFETY EQUIPMENT
UR7: ROLLCAGES
Stock UTV cages rarely meet VORRA minimum cage requirements. VORRA may approve a
factory cage as manufactured or as modified if it is deemed to meet the requirements of UR7.
Key factors include but are not limited to welded joints, 6 attachment points, X-bracing,
gusseting, and material. All attachments must be welded or secured to the frame with
appropriate .1875†shear plates and minimum 3/8†grade 8 bolts.
UR11: SEATING
There must be at least two registered entrants, driver and co-driver, in the vehicle at all times
during the event. A co-driver will not be required for some short course events but center seat
locations will not be considered consistent with a UTV or “side-by-side.â€
GENERAL VEHICLE COMPONENTS
UR42: DOORS & LATCHES
All vehicles must have a minimum of a single door bar bracing in door area of the same tubing
size and material of the roll cage. Ladder design must be at least 1.25†diameter x .090†wall
thickness for rungs. Doors that latch or open and close are only allowed provided they have
secondary locking pins. Full door window nets are required. Wrist restraints may be
substituted for window nets during short course events only, although not recommended.
UR43: FIREWALLS
All vehicles must have an all-metal barrier separating the driver’s compartment from the danger
of fire relating to fuel supplies and from the danger of burns relating to hot fluids from the
engine. Stock UTV engine covers meet the engine firewall requirement for the UTV class.
However, a fuel container barrier is still necessary. All fuel vent lines must be properly routed
per UR30.
UR46: FLOORBOARDS
Stock UTV floorboards are acceptable. Although adding extra protection made of metal is
highly recommended.
UR47: BUMPERS
Must have rear bumper secured to frame using minimum 1.5" outside diameter, .090" wall
tubing.
UR52: CHASSIS & BODY
All UTV vehicles must utilize the stock chassis (frame) and maintain stock appearance. The
stock chassis (frame) is defined as the main lower rails running along the inner sides of the 66
UTV and the front and rear tubes that connect them. Please refer to the drawing for a better
description. Any modifications to the stock chassis (frame) must be pre-approved by a VORRA
tech inspector. A custom built frame may be allowed but must be built with the suspension
mounting point dimensions that are the same as a current UTV. The stock chassis (frame) may
be added to, for durability and strength, but must retain the stock width, length, and
configuration. All body parts must remain on the vehicle (accidental damage excluded) during
the entire length of race. The roof must be covered with sheet metal or aluminum.
UR54: IDENTIFICATION MARKERS
VORRA will assign vehicle numbers. 19XX series
UTV1000 will also need a distinguishing character such as an “x†suffix to identify the larger
engine competitors.
UTV
UTV800 & UTV1000
Vehicles built using production UTV’s, a.k.a. “side-by-sidesâ€, manufactured by registered
companies that issue VINs. Companies must produce a minimum number of units to be
accepted. UTV’s have 2 seats minimum. OEM engines must be used.
GENERAL REGULATIONS
Class entrants shall comply with all class and applicable general regulations.
COMPETITION REGULATIONS
This class is a production class. Anything not built in compliance with the spirit of the class
may be deemed ineligible to collect points, trophies, prize funds, and contingency.
Manufacturer’s body, chassis, engine, transmission, and differentials must be retained. All UTV
vehicles must have a driver and a co-driver in the vehicle for the duration of the race during
desert races.
Note: All universal rules apply unless specified. The URxx abbreviations are provided. Where
a conflict between the cross-referenced listings and a rule contained under this class occurs, the
rule contained under this class has precedence.
SUSPENSION COMPONENTS
All suspension arm mounting points must remain the stock design, and remain in the stock
location as delivered from the manufacturer; however they may be reinforced for strength.
UR16: SHOCK ABSORBERS & BUMP STOPS
There must be at least one and only one shock absorber per wheel in working condition at the
start of the race. Shock absorber mounting points may be moved. Suspension bump stops must
be of the solid type.
UR17: SECONDARY SUSPENSION
Secondary suspension is not permitted.
UR18: WHEELS & TIRES
Maximum tire size is 30 inches outside diameter. No multiple tires per corner permitted. Lug
nut thread engagement must be equal to the diameter of the wheel stud used, if closed “acornâ€
style lug nuts are used the competitor must bring the tools to technical inspection and remove a
lug nut to verify thread engagement.
UR19: TIRE TRACK WIDTH
Max width outside of tire to outside of tire is 76", and wheel base must not exceed 8" over stock
dimensions.
STEERING & BRAKE COMPONENTS
UR22: STEERING
Power steering is permitted.
UR23: BRAKES
Turning or steering brakes are not permitted.
ELECTRICAL SYSTEM
UR25: BATTERIES
Batteries must be securely mounted with metal attachments.
Batteries may be located in the driver’s compartment provided they are fully surrounded with
aluminum or sheet metal. 65
UR29: FUEL TANKS
Safety fuel cells are required Stock fuel tanks will be allowed for short course. All fuel vent
lines must be routed up and around the perimeter of the “B†pillar roll cage structure and vented
to the rear and away from occupants. VORRA recommends a shield installed between the stock
fuel tank and occupants for short course events
ENGINE TRANSMISSION & DRIVELINES
UR31: ENGINE LOCATION & DISPLACEMENT
Engine must be located in the manufacturer’s OEM mounting location. Vehicles must use OEM
engine cases, pistons, cylinders, and heads are open.
UTV800 maximum engine displacement is 800cc.
UTV1000 maximum engine displacement is 1000cc
Vehicles must use the same fuel delivery system as stock and designed by the factory. Electric
fuel pumps are permitted.
UR33: TRANSMISSION
Every vehicle must use the stock transmission and clutch design, have a functional reverse gear
if so equipped from the factory, and use the stock differential.
VEHICLE SAFETY EQUIPMENT
UR7: ROLLCAGES
Stock UTV cages rarely meet VORRA minimum cage requirements. VORRA may approve a
factory cage as manufactured or as modified if it is deemed to meet the requirements of UR7.
Key factors include but are not limited to welded joints, 6 attachment points, X-bracing,
gusseting, and material. All attachments must be welded or secured to the frame with
appropriate .1875†shear plates and minimum 3/8†grade 8 bolts.
UR11: SEATING
There must be at least two registered entrants, driver and co-driver, in the vehicle at all times
during the event. A co-driver will not be required for some short course events but center seat
locations will not be considered consistent with a UTV or “side-by-side.â€
GENERAL VEHICLE COMPONENTS
UR42: DOORS & LATCHES
All vehicles must have a minimum of a single door bar bracing in door area of the same tubing
size and material of the roll cage. Ladder design must be at least 1.25†diameter x .090†wall
thickness for rungs. Doors that latch or open and close are only allowed provided they have
secondary locking pins. Full door window nets are required. Wrist restraints may be
substituted for window nets during short course events only, although not recommended.
UR43: FIREWALLS
All vehicles must have an all-metal barrier separating the driver’s compartment from the danger
of fire relating to fuel supplies and from the danger of burns relating to hot fluids from the
engine. Stock UTV engine covers meet the engine firewall requirement for the UTV class.
However, a fuel container barrier is still necessary. All fuel vent lines must be properly routed
per UR30.
UR46: FLOORBOARDS
Stock UTV floorboards are acceptable. Although adding extra protection made of metal is
highly recommended.
UR47: BUMPERS
Must have rear bumper secured to frame using minimum 1.5" outside diameter, .090" wall
tubing.
UR52: CHASSIS & BODY
All UTV vehicles must utilize the stock chassis (frame) and maintain stock appearance. The
stock chassis (frame) is defined as the main lower rails running along the inner sides of the 66
UTV and the front and rear tubes that connect them. Please refer to the drawing for a better
description. Any modifications to the stock chassis (frame) must be pre-approved by a VORRA
tech inspector. A custom built frame may be allowed but must be built with the suspension
mounting point dimensions that are the same as a current UTV. The stock chassis (frame) may
be added to, for durability and strength, but must retain the stock width, length, and
configuration. All body parts must remain on the vehicle (accidental damage excluded) during
the entire length of race. The roof must be covered with sheet metal or aluminum.
UR54: IDENTIFICATION MARKERS
VORRA will assign vehicle numbers. 19XX series
UTV1000 will also need a distinguishing character such as an “x†suffix to identify the larger
engine competitors.
