Re: **formula desert lites rules**
ACR 12: LGHTS
1. Two taillights
2. Two brake lights.
3. One rearward facing Amber light.
1. Two rearward facing AMBER lights, one flashing, one steady.
2. One rearward facing BLUE light.
3. A minimum of two forward facing driving lights.
ACR 13: STARTER
1. A starter capable of turning and starting the motor.
ACR 14: FUEL
1. Service station pump gas.
2. Racing gasoline.
3. Commercial aviation gas.
4. Diesel fuel.
1. Alcohol, nitrous oxide (NOS) or nitro methane.
ACR 15: FUEL CELL
1. Stock fuel tanks must be removed.
2. Safety type fuel cell must be used.
3. Safety fuel cells shall consist of a bladder enclosed in a smooth skinned container.
3. Cell container must be made of minimum 20ga. Steel, 0.060-inch aluminum or 0.125 inch marlex.
4. Container must be securely mounted to vehicle with bolts or steel straps.
5. Internal baffling is mandatory in all fuel cells.
6. Bladder construction shall be of nylon or Dacron woven fabric impregnated and coated with a fuel resistant elastomer. Rotary molded cells are acceptable.
7. The physical properties minimum standards are in accordance with the following table.
Test Type - Minimum Standard
Tensile Strength - 450 lbs.
Spec CCC-T-1916 Method 5102
Tear Strength - 50 lbs.
Spec CC-T-1916 Method 5134
Puncture Test - 175 lbs.
Spec MIL-T-6396 Article 4.5.17
These physical properties must be maintained throughout all areas of the finished bladder including seams, joints and fittings.
ACR 16: FUEL FILLING SYSTEM
1. Positive locking cap
2. Design must be of such that there is no loss of fuel in the event of a roll over.
3. A check valve to prevent fuel from leaking if the cap and filler neck are pulled from the cell. The check valve is not required if the filler is located on or within 2 inches of the cell membrane.
4. Fuel filler must be in a location so as not to be disturbed in forward motion or in adverse motion such as an endo or rollover.
5. When filling with fuel it must be directed away from the engine exhaust system and driver of the vehicle by a splash system of any design that accomplishes the purpose.
6. A flexible coupling to the cell must be provided for all fillers attached to the body or frame of the vehicle.
1. Monza or flip type caps.
2. Vents in the drivers compartment.
3. Glass filters
ACR 17: THROTTLES
1. Each vehicle must have a hand or foot throttle incorporating positive return springs.
2. A positive stop or over-ride prevention system must be used to keep linkage from passing over center and sticking in an open position.
ACR 18: TRANSMISSION
1. Automotive type automatic transmissions.
2. Automotive type manual transmissions.
ACR 19: EXHAUST
1. Forestry approved spark arrestors or approved mufflers.
2. Exhaust system design must be in such a way as to exit to the rear of the occupants, fuel cells and tires.
ACR 20: OIL COOLERS
1. Installation designed so as to prevent the oil from the cooler or its lines from blowing on the driver or co driver in the event of a failure.
1. Cooling fans.
ACR 21: ELECTRICAL SYSTEMS AND COOLING SYSTEMS
1. Complete functioning charging system (type open).
2. Complete functioning cooling system (fans open).
ACR 22: ROLL CAGES
1. Material must be of crew, dom, whr, wcr mild carbon steel or 4130 chromoly. 4130 chromoly is highly recommended for all rollcage construction.
2. Stress relieve all welded intersections by flame annealing.
3. All welds must be of high quality and craftsmanship with good penetration and with no undercutting of parent material.
All roll cages must be designed and constructed with one front vertical hoop, one rear vertical hoop, two interconnecting top bars, two rear down braces, one diagonal brace and gussets. The two top interconnecting bars must be placed as far to the outside of the top part of the front and rear hoops as possible. Rear down braces and diagonal brace must have a minimum angle of 30 degrees from vertical. Opened-wheeled vehicles built only wide enough for a single seat are excluded from having the diagonal brace (although the diagonal brace is highly recommended for the single seat vehicles). At the bottom of the diagonal brace there must be a cross member of the same tubing material and dimensions as the hoop. All roll cage components (hoops, braces, gussets, etc.) must have a minimum of 3-inch clearance from the component to the vehicle occupant’s helmets when occupants are seated in their normal riding/driving positions. All portions of the roll bar or bracing that might come into contact with the vehicle occupant’s helmets must be padded.
Cages must be securely mounted to the frame or body. All intersecting points must be gusseted and braced. Cab or body mounted roll cages must be bolted through the body structure and be attached by use of a minimum two 0.1875-inch thick doubler plates (one on each side of body structure). Bolts and nuts must be at least 0.375-inch-diameter s.a.e. Grade 8 or equivalent aircraft quality. Welding of 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 more than 1.5 inches of movement in the cage terminal end.
All vehicles must have at least one side bar on each side of vehicle that will protect occupants from side impact. The side bars must be of the same tubing material and dimensions as the rest of the roll cage. The side bars must be as close to parallel to the ground as possible, be located to provide maximum protection to the occupants, and be securely welded to the front and rear hoops. The location of the sidebars must not cause difficulty in entering or exiting the vehicle.
Gussets constructed of 0.125-inch x 3-inch x 3-inch flat-plate or split, formed and welded corner-tubing, or tubing-gussets made of the same material and thickness as the roll cage may be used. Gussets must be installed at all major intersections, including diagonal and rear down braces, where single weld fractures can affect occupants’ safety.
Weight Tube Size
Under 1,000 lbs 1 ¼” x 0,83”
Under 2,000 lbs 1 ½” x 0.90”
Race vehicles with a stock roll cage as manufactured (such as the Honda FL350) will be reviewed on a case by case basis. If allowed the cage must in as new condition, NO EXCEPTIONS.
ACR 23: SAFETY HARNESS
1. Heavy duty five point harness for driver and co-driver/co-rider.
2. Metal to metal connections and fast release buckles.
3. Two 3” shoulder straps and a 3” lap belt plus a minimum of one 2” anti submarine lap belt.
4. Manufacturers name and date of manufacture on a label.
5. Harness material of nylon or Dacron.
6. Clean belts in like new condition and must be replaced after three years of the manufactured date.
7. Adjustment buckles must be at least 1 ½” from the seat to prevent chafing or loosening.
1. Seat belt replacement every year.
2. Sternum straps on shoulder harness.
1. Y type belts
2. Push button type release.
3. Dirty, stained, frayed or cut belts.
4. Outdated belts.
5. Surplus harnesses.
1. Crotch straps as close to the front of the seat as possible so upward movement of the belt is kept to a minimum.
2. Shoulder Harness behind the driver co-driver/co-rider approximately 4” below the top of the shoulders.
3. Lap belts 2 ½” ahead of where the seat and back rest meet.
4. All mountings must be directly to a structural member.
5. Mounting material must be hardened steel bolts at least 5/16” in diameter.
6. Belt hardware must be safety tied or cotter pinned.
ACR 24: SAFETY NETS
1. Formula Desert Lites approved safety nets are mandatory on all vehicles and must cover the complete open area of the cockpit on both sides of the vehicle.
2. Nets must be installed on the inside of the roll cage to prevent them from being damaged or coming off in the event of a roll over or slide on the side.
3. Nets attached to doorframes are permitted as long as door has a positive secondary latching device.
4. Nets must be installed so that the occupants can release the netting unassisted and exit the vehicle regardless of the position of the vehicle.
5. Net installation must meet with the approval of the chief technical inspector.
6. The net border or edge and the net attachment must be made of materials that are as strong or stronger than the net itself.
7. Net attachments must be every 6 inches. Acceptable attachments are not limited to the following: hose clamps, snaps, heavy-duty nylon ties, lift-a-dot, metal hooks and steel rods. Steel rods are acceptable methods of bottom fastening.
8. The roof must be covered with sheet metal or aluminum.