2.0 outlaw class
The outlaw class is
reserved for Modified SideXSides with unlimited displacement that retains
the basic factory
Hydraulic Bump stops are
configuration is approved
Tires shall be
visually checked for condition and must not be considered obviously unsafe by the Chief Technical
size is unlimited.
screws or any other items added to the tire are not permitted. Grooving, sipping or other modifications that
involve removing material from the tire are permitted.
recommended that all component parts of the vehicle’s steering, suspension, chassis, drivetrain, and running
gear be secured with fasteners suitable to the task, and in good working order. Male threaded fasteners should
be secured with either: lock nuts, lock washers, cotter pins or safety wire and shall have at least one full
thread showing through the nut.
Drag link and
tie rod ends designed for use with a castellated nut and cotter pin must be secured with a cotter pin. Spherical
rod ends (Heim joints) are a permitted replacement for OEM-style tapered tie rod ends. Aftermarket steering
racks are permitted.
steering is permitted; aftermarket factory replacement steering products are approved. Aftermarket electric
power steering is approved. Replacement rack in pinion steering is approved.
considered the system used for slowing and stopping the wheels.
Brakes must be
able to apply adequate force to lock up all four tires. Brakes must be in a safe operating condition and free of
leaks during the entire event. If brake system problems occur during the event they must be repaired before
continuing in competition.
cutting, or steering brakes are permitted.
brake products are permitted.
mounted in driver’s foot-well must be able to operate all brakes with a single foot. Adjustable brake bias is
should have a means of applying continuous brake pressure while vehicle is parked with occupant(s) outside the
vehicle. Hydraulic “line-locks” or mechanical “park” mechanisms are permitted.
Each vehicle must have a
positive action on/off ignition switch in. The switch must be labeled “ignition on/off” and be located within
easy reach of the driver and from the outside of vehicle.
Batteries must be securely
All vehicles must have a
minimum of two taillights, two brake lights and one rearward facing amber light.(A rearward
facing blue light, in addition to the rearward facing amber light, must be installed on all
participating in Desert style racing or where applicable. This blue light is intended to identify
moving classes of vehicles to faster vehicles approaching from the rear.) Headlights are required
for events where any portion of the on-course event takes place between sunset and sunrise. If during an event
any required light fails to operate, the light must be fixed or replaced at the next available pit before the
vehicle can continue in the event.
All vehicles must be
self-starting by use of an onboard electric starter.
Any of the following
commercially available fuels may be used:
station pump gasoline (the type normally used in passenger vehicles for highway
use, this also includes
gasoline as manufactured
natural gas. No alcohol, or nitro-methane is permitted. Commercially produced, nationally advertised fuel
additives may be used. Nitrous Oxide is not permitted
cells are required for any vehicle that has modified its factory fuel system. Safety fuel cells shall consist of
a bladder enclosed in a smooth-skinned container. The container shall be constructed of 20-gage steel, 0,060
Inch Aluminum, or 0.125 inch Marlex. All fittings must be built into the container skin and bonded to the
container skin as a integral part of the tank or mechanically sealed by aring and counter-ring system by either
flat joint or an O-ring. Internal baffling is mandatory in all fuel cells. Foam is an acceptable internal
baffling. Bladder construction shall be of nylon or Delcron woven fabric impregnated and coated with a fuel
resistant elastomer, Rotary molded Polymer cells are acceptable when encapsulated in a container constructed of
20 ga. Steel, or 0.060 inch aluminum.
methods may be approved
shall be mounted in a fashion to protect the tank from damage due to a rear-end or side collision, impact from
debris or rocks from below the vehicle, damage due to roll over, or the possibility of damage from chassis flex.
Firewalls and/or bulkheads must separate the driving
compartment from any
fuels, engine fluids, and acids. Rear mounted Fuel cells higher than drivers shoulder must extend fire wall to 2
inches above fuel cell.
lines and positive-locking, non-vented fuel filler caps must be located and secured in such a manner as to
prevent them from being knocked off or open during vehicle movement, rollover, or accidental
The fuel vent
line if so equipped must vent outside of occupants’ compartment and be directed away from the engine and exhaust
fillers attached to the frame or a body panel must use a flexible coupling to the tank. All fuel fillers must be
surrounded by a boot or splashguard. (Body panel is acceptable as a splashguard if it is sealed.) Splashguard
must direct fuel out of the vehicle and away from occupants.
Fuel mats are
required for all refueling. No vehicles shall be refueled outside approved pit
locations. Storage of fuel
in the pits shall consider safety the highest priority. Check with local event restrictions concerning the
storage, transportation, and transfer of fuel. ISA highly recommends the use of safety tape and “No smoking/No
open flame” signs in the area surrounding fuel storage and transfer locations.
TRANSMISSIONS TRANSFERCASE & DRIVELINE
model and size are Unlimited with the exception of automobile based engines. No automobile based engines are
be free of leaks.
replace a complete engine during an event. Entrant will be deemed to have replaced a complete engine if the case
has been replaced.
must have a functional reverse gear. Vehicles must be capable of being driven through all four
shall be 4-wheel drive
whether controlled by hand or foot, must have at least one return spring of sufficient stiffness to instantly
close the throttle plate when the throttle is released. Carbureted vehicles must have at least two
throttle-return springs, at least one of which must be attached to the carburetor. All vehicles should have at
least one throttle return spring at the throttle plate and one at the throttle control (pedal or hand control).
Computer controlled throttles (Electronic Throttle Control or “drive-by-wire” systems) are exempt from the
requirement to have a return spring at the throttle body, but must have a return spring at the throttle control
(pedal or hand control) or maintain the stock OEM system. A positive stop or throttle override system must be
used to prevent throttle linkage from sticking in an open position.
throttle may be used if physical limitations require use of such device. Hand throttles must meet the same
requirements as a foot throttles, and must meet with the approval
approved spark arrestors or approved mufflers where required on all vehicles. Exhaust system outlet must extend
a minimum of one foot past the rear of the occupants’ compartment; be directed rearward out of the body away
from the occupants.
transmission coolers and radiators located in front of the vehicle occupants must have a shroud that, in the
event of a rupture or leak, will prevent liquids from blowing back or leaking onto
the occupants. All hoses
running through the passenger compartment must be shielded. Steel braided hoses do not constitute a
must start event in good working condition.
It is each competitor’s
responsibility to present a safe vehicle for pre-event technical inspection.
Competitors must maintain
their safety equipment including the roll cage integrity. ISA reserves the right to not allow any cage designs
that, in the opinion of the Chief Technical Inspector, is not fit for competition. Competitors are ultimately
responsible for their vehicle’s safety features, including the design, fabrication, and quality of execution,
maintenance and repair of the roll cage structure. The roll cage is considered to be the main 6-point structure
that surrounds and protects the vehicle’s occupants.
must be equipped with a roll cage fabricated of 1020 mild steel mechanical tubing or better (higher carbon
content or alloy steel). Minimum mild steel tubing guidelines for roll cage main structure, based on dry vehicle
weight rating (DVWR) in race trim, not including occupants, are: DVWR Under 2000 lb. - 1.5” diameter x .095”
DVWR 2000 lb. - 3200 lb. -
1.5” diameter x .120” wall thickness.
Note: See manufacturer’s
reference charts for alloy steel tubing equivalent strengths. No aluminum or other non-ferrous materials are
Roll cage main
structure material may be CREW, DOM, WHR, or WCR mild carbon steel or 4130 chromoly alloy steel. All welds must
be of high quality and craftsmanship with good penetration and with no undercutting of parent
All roll cage
components (hoops, braces, gussets, etc.) must have a minimum of 3” of clearance from any vehicle occupant’s
helmet when occupant is seated in normal driving/riding position. All roll cage components that might come into
contact with the vehicle occupants’ helmets must be padded.
: Roll cages
must be securely mounted to the frame, chassis, or body. Roll cage mounting
fasteners must be at least
3/8” diameter S.A.E. or metric equivalent Grade 8 or equivalent or better when utilizing the stock mounting
positions. Sandwich plates, if used, must be oriented only in the horizontal lplane. No vertical or other
non-horizontal sandwich plate orientations are permitted.
cab- or body-mounted roll cages to body structure is strictly prohibited. Roll cage terminal ends must be
attached to a frame or body member that will support maximum impact and not shear or allow movement in the cage
must include factory or aftermarket door with permanent or secondary latching system to protect occupants in the
event of a roll over, collision. A chassis integrated door bar with an aluminum skin is
be installed at all major intersections, including diagonal and rear down braces, where single weld fractures
can affect occupants’ safety. Gussets of the same material and thickness as the roll cage may be
Six (6) point
mounting cages are required over the occupants.
0.040” expanded or flat sheet magnetic steel or 1/8” aluminum should cover the area immediately above the
occupants’ seats and be attached via welding or bolting to a steel tubing frame work.
All vehicles must have a
five-point H-style driver restraint system for each occupant. Driver restraints must incorporate a lap belt,
anti-submarine strap, and shoulder straps.
restraint system shall consist of one 2” wide anti-submarine strap, one 3” wide lap belt and two 3” wide
shoulder straps. Sternum straps and chest buckles may be used. Hybrid Head & neck restraint belts allowed
when used in conjunction with a head and neck restraint system. The use of some form of neck protection is
material shall be nylon or Dacron polyester. Driver restraint system must be in new or condition with no cuts,
frayed layers, chemical stains, or excessive dirt and must be in flexible condition (i.e. material must not be
restraint systems must be replaced after two years from the date of manufacture.
No portion of
the driver restraint system may be altered in any fashion from the manufacturer’s standard
driver restraint systems are permitted.
: All driver
restraint systems must be properly mounted in accordance with manufacturer’s
recommendations. Bolt in, wrap-around, and snap-in mounting styles are permitted, except that lap belts may not
be mounted by wrap-around method.
In addition to
conforming to the manufacturer’s directions, driver restraint system installations must also conform to the
restraint system must be mounted to structural members able to withstand
the load the restraint
system will place on them in a crash, without rupturing or failing.
restraint must be matched to a properly constructed, fitted, and installed seat
securely mounted to the
frame / chassis / roll-cage.
Seats must not
be modified to create belt slots.
should be as short as possible to minimize the belt's stretch.
must allow webbing to pull in a straight line against anchor point. Mounting
brackets must be at an
angle that is compatible with the direction of pull on the webbing.
anchor mount is a double-shear bracket.
restraint systems must be mounted using high-quality hardware appropriate for
the installation. 1/2",
7/16" or metric equivalent fine-thread Grade 8 bolts and Grade 8 deformedthread locknuts (or better) are
Belts must not
rub against any surface that will cause them to fray.
must be located as close as possible to the anchor plate, or if belt is wraparound style, to the bar around
which they wrap.
non-sewn anchor plates must be wrapped back a fourth time through the 3-
style mounting should be confined to shoulder and 5th point belt installation and must include some method to
prevent lateral movement of the belts.
restraint systems must be worn properly tightened, by all occupants; at any time the vehicle is in
approved safety nets are mandatory on all vehicles and must cover the complete
open area of thecockpit on both sides of
the vehicle to the extent that it is impossible for any limb or body part of anyoccupant to protrude from
the vehicle at any time when the occupant is properly seated and strapped intheir normal driving /
Nets must be
installed on the inside of the roll cage to prevent them from being damaged or coming off in a roll over or
slide on the side.
to doorframes are permitted when Door frame is equipped with a latch that prevents it from opening and locked
Nets must be
installed so that the occupants can release the netting unassisted and exit the vehicle regardless of the
position of the vehicle.
The net border
or edge and the net attachment must be made of materials that are as strong as, or stronger than, the net
itself. Net attachments must be at a minimum of every 6 inches. Acceptable attachments include, but are not
limited to: steel hose clamps, snaps, lift-a-dot, metal hooks, and steel rods. Nets must be tight so that when
subject to a pushing force of approximately 50lbs the net deflects no more than four inches.
All seats must be
manufactured by a recognized manufacturer and approved for racing application for human beings. Seats must be
interchangeable between left and right sides. Mock seats are not approved.
production seats are prohibited.
All seats must
be securely mounted to frame of vehicle.
track-type seat mounts must be securely mounted to frame of vehicle to allow no lateral or vertical movement
between seat and frame or mounting track and frame.
constructed of at least 2” thick resilient padding and being approximately 36 square inches in area are required
or the use of a high back seat.
: Seats must
have appropriate slots to properly accommodate driver restraint system
occupants must be able to easily enter and exit unassisted with the vehicle in any position. Firewalls and/or
bulkheads must separate the driving compartment from any fuels, engine fluids, and acids.
with operational doors must have positive locking mechanisms on the doors and doors must also have a permanently
attached positive secondary latching device that locks the door in theclosed position.
vehicle weight shall be the empty dry weight of the vehicle. Empty dry weight is measured without fuel, spare
tires, tools, spare parts or occupants in vehicle. Official weight will be the weight as shown on the ISA
official scales where applicable.
must cover the entire area from in front of the pedal assembly to behind the seat(s), and from the outside edge
to the outside edge of the vehicle.
front or rear bumpers, nerf bars, frame heads or other protruding objects from vehicles are permitted. Ends must
be capped and rounded to prevent any sharp edges. Bumpers and nerf bars must be designed in a way that
reasonably minimizes the chance of two vehicles becoming locked together. A safe front and rear bumper is
required on all vehicles.
A rear view
mirror is required on all vehicles. Mirrors must have at least six square inches of mirror surface. Mirror must
have a reasonably unobstructed view of area behind vehicle.
parts and extra equipment carried on or in a vehicle must be securely attached or stowed to prevent movement
during competition. All spare parts and extra equipment must be carried in a manner that minimizes the risk of
injury to the vehicle occupants.
body parts must remain on the vehicle (accidental damage excluded) during the entire event.
to retain overall UTV appearance.
vehicle weight less occupants is unlimited
in competition must be identified with the correct entrant number.
numbers shall be composed of a combination of the digits 0 through 9 only.
numbers shall be assigned to Drivers of Record on a first-come first-served basis. Drivers will retain there
issued number so as long as they retain membership in the ISA. The Number 1 –100 will be reserved for ISA
national points champions for each class. Your ISA issued number will stay with you regardless of class you race
for the life of your membership.
participating in any series will be required to retain their number for all events in the
assumes no responsibility for scoring vehicles with unrecognizable numbers. It is the vehicle driver’s
responsibility to maintain numbers in recognizable condition.
symbols, and names may be displayed on competition and support vehicles
provided that they do not
interfere with required official identification markings and that they are in good taste as