1. Competition Vehicles
  1. Vehicle Eligibility
  1. Eligible models must be considered a “production vehicle” and have had a minimum build run of 600 units in each model year.
  2. Eligible body styles include: coupe, sedan, convertible or wagon and have no more than 5 doors.
  3. Vehicles must maintain the original OEM steel unibody and/or steel frame structure between the OEM front and rear suspension mounting points.
  4. Vehicles that do not meet the above eligibility criteria must petition for approval.

  1. Chassis
  1. Chassis Modifications
  1. The original OEM floor plan, frame, and or unibody must remain unmodified between the vertical planes created by the original forward most and rearward most suspension point or subframe mounting point.
  2. Unibody or chassis may be stich or seam welded.
  3. Plating of chassis is prohibited. Certain chassis specific exceptions, such as E46 subframe mount plating, may be granted on a case by case basis.  
  4. Front suspension examples are in Figure 1 and 2.
  5. Rear suspension examples are in Figures 3 and 4.

  1. Items in the unmodified zone that are allowed to be removed can include original rear window parcel shelf, convertible-top frame, tabs or mounts for unused OEM steering columns, unused OEM windshield wiper mounts, and the exterior roof panel can be replaced with a composite panel.
  2. Rear suspension tower cross-members located at the top of the rear suspension towers may be removed from the unibody interior only if a suitable replacement structure of equivalent strength is installed.
  3. No part of the engine casing may cross the vertical threshold of the original firewall into the transmission tunnel.
  1. Firewall and Transmission Tunnel Modifications -
  1. Dimension A: Tunnel Width may be no wider than 18 inches
  2. Dimension B: Minimum dimension of 10 inches between the bottom of the windshield and the top of the transmission tunnel.
  3. Dimension C: Modifications to drive shaft tunnels behind the engine firewall vertical plane should not exceed an overall width of 10.000 inches.
  4. Dimension D: Modifications to drive shaft tunnels behind the engine firewall vertical plane should not exceed an overall width of 10.000 inches.
  5. Taper length from the firewall to the end of the transmission tunnel into the beginning of the drive shaft hump may be no longer than 36 inches.
  6. Modifications to firewall and transmission tunnel must be done with .036-inch steel or .059-inch aluminum.
  1. Roll Cage
  1. All roll cage structures must be designed in an attempt to protect the occupants from any angle, 360 degrees.
  2. The roll cage shall attach to the chassis/unibody in six points. Eight points recommended to accommodate anti-wheel intrusion bar. (anti-wheel intrusion bars will be mandatory in 2019)
  3. Gussets of such as dimple die plates are allowed along A-pillar, B-pillar, and roof structure. Gussets shall be made from steel plate no thicker than .125-inch.
  4. No gussets or attachment of any form may pass from the door bars to the chassis, unibody, or rocker panel.
  5. Bolt in roll cages are not allowed.
  6. No portion of the cage may permeate the firewall and shall be fully contained within the driver’s compartment.
  7. No additional bracing may be used between the strut tower and the firewall.
  8. Any number of additional reinforcing bars, gussets or supports is permitted within the confines of the roll cage.
  9. Modifications to the chassis or notching for roll cage clearance must have prior written approval from the COMPETITION DIRECTOR.
  1. Padding
  1. Padding must meet SFI spec 45.1 or FIA 8857-2001.
  2. Padding is required anywhere driver helmet may come in contact with the roll cage and along the base of the driver’s side A-pillar bar and box if applicable.
  1. Welding
  1. All roll cages must be based on a single Main Hoop of one (1) continuous length of tubing with smooth continuous bends and no evidence of crimping or wall failure. The radius of bends in the roll cage hoop (measured at centerline of tubing) shall not be less than three (3) times the diameter of the tubing. Welding shall conform to American Welding Society D1.1:2002, Structural Welding Code, Steel Chapter 10, Tubular Structures. Whenever D1.1 refers to “the Engineer” this shall be interpreted to be the owner of the vehicle.
  1. All welds shall be visually inspected and shall be acceptable if the following conditions are satisfied:
  2. Welds shall be continuous around the entire tubular structure.
  3. The weld shall have no cracks.
  4. Grinding down of welds is prohibited.
  5. Thorough fusion shall exist between weld metal and base metal.
  6. All craters shall be filled to the cross section of the weld.
  7. Undercut shall be no more than .01-inch deep. 9
  8. Aluminum bronze or silicon bronze welding technique is permitted, but extreme care shall be used in preparation of parts before bronze welding and in the design of the attaching joints.
  1. Roll Cage Material
  1. Roll Cage Material must be Seamless SAE 1020 or 1025 mild steel tubing, DOM, and or chromoly.
  2. ERW tubing is not permitted.
  3. All roll cage tubing in the requirements listed below must be a minimum of 1.5 x .095-inch for all materials.
  4. The minus tolerance for wall thickness should not be less than .010-inch below the nominal thickness.
  5. Vehicles weighing over 3500 lbs. with driver must petition with the COMPETITION DIRECTOR for approval of the roll cage prior to entering any event.
  1. Roll Cage Mounting Plate
  1. Each mounting plate or box shall be at least .08-inch thick steel
  2. Each mounting plate or box must be fully welded to the structure of the vehicle
  3. Each mounting plate or box shall not be greater than 100 square inches and shall be no greater than12- inches or less than 2-inches on a side. The mounting plate may be multi-angled but must not exceed these dimensions in a flat plane
  4. Whenever possible, mounting plates shall extend onto a vertical section of the structure such as a rocker box or door pillar
  5. Any number of tubes may attach to a single plate or to each other.
  1. Main Hoop
  1. The main roll hoop (behind the driver) shall extend the full width of the driver/passenger compartment and shall be as near the roof as possible with a maximum of 4 bends, totaling 180 degrees ± 10degrees.
  2. The roll cage main hoop should start from the floor of the vehicle and be attached to the chassis/unibody via Mounting Plate specifications.
  3. Diagonal lateral brace is a piece of tubing equal to the roll bar diameter, installed across the main hoop to prevent lateral distortion. This brace must attach to the driver side upper corner of the main hoop, not more than 6-inches from the center of the radius, and to the opposing leg, not more than 6-inches from the base plate.
  4. A horizontal brace is a piece of tubing equal to the roll bar diameter, installed behind the driver’s seat for the purpose of mounting seat belts. This tube shall be no higher than shoulder height and continue the full width of the main hoop, attached to both legs.
  5. The diagonal brace or the horizontal brace must be one continuous piece of tube, with the other attaching to it.
  1. Front/Side Hoops
  1. The front hoops, side hoops, or down tubes shall begin at the floor.
  2. Several configurations are allowed:
  1. Side Hoop Configuration: Side Hoops connect directly from the floor of the driver’s compartment and continue, in one piece, to connect to the Main Hoop. If Side Hoops are used, they are to be connected together by a single horizontal tube across the top of the windshield with a maximum of 4 bends totaling 90 degrees ± 10 degrees.
  2. Front Hoop Configuration: A front hoop connected to the floor on both sides of the driver compartment and following the line of the front pillars in one continuous piece may be used. A front hoop must be connected at the top by horizontal bars running back to the main hoop on each side, above the doors with a maximum of 4 bends, totaling 180 degrees ± 10 degrees.
  3. HALO Configuration: Top “halo” hoop following the roof line in one continuous piece from each side of the main hoop along the top of the doors and windshield. A HALO must be connected to the floor with forward “down tubes” following the line of the front pillars with a maximum of 4 bends, totaling 180 degrees ± 10 degrees and a maximum of 2 bends allowed on the down tubes.
  4. The front, side or down hoops may extend through the dash pad, including the forward part of the door panel if it is an extension of the dash panel.One (1) “Knee” bar is recommended in a horizontal plane between forward cage braces in the dash area for all configurations.
  1. Rear Hoops Supports
  1. The main roll hoop shall have two braces extending to the rear attaching to the chassis/unibody.
  2. Braces shall be attached as near as possible to the top of the main hoop not more than six (6) inches below the top and at an included angle of at least thirty (30) degrees.
  3. No bends are allowed on rear braces.
  4. On vehicles where the rear window/bulkhead prohibits the installation of rear braces, the main hoop shall be attached to the body by plates welded to the cage and bolted to the stock shoulder harness mounting points.
  1. Side Protection
  1. All vehicles shall have a minimum of two door bars across each front door opening. The door bars may run parallel, or in the shape of an “X”.
  2. If the two door bars do not intersect as they do when forming an “X”, then a minimum of two vertical tube sections shall connect the upper and lower door bars.Teams may also choose to install “NASCAR-STYLE” bars and extend into the outer door skin. In this configuration, the outer bars must also have a minimum of three vertical tube sections connecting the upper and lower bars.
  3. Side protection must not pass through the B-pillar.No gussets or attachment of any form may pass from the door bars to the chassis, unibody, or rocker panel. The inner door panel and door internals may be removed.
  1. Bumpers
  1. All vehicles must be equipped with safe front and rear bumpers.
  2. Unless factory OEM- All bumpers must be made entirely of magnetic steel
  3. Bumper must be constructed of 1 inch to 1.75 inch o.d. tubing with a minimum wall thickness of 0.063 inch to a maximum wall thickness of 0.125 inch.
  4. All bumper tubing must remain hollow.
  5. Bumpers must be fastened to the vehicle with factory fasteners, or a minimum of (4) 3/8 inch fasteners per side (minimum Grade 5) or welded to prevent the bumper from being dislodged from the vehicle.
  6. Bumpers mounts with quick release pins are allowed with sleeved tubing.
  7. Bumpers should be rounded off or capped off to prevent becoming locked to or piercing another vehicle.
  8. Bumpers at minimum must span the width of the front and rear frame rails.
  9. Tubing must not be exposed and must remain behind the bumper covers with minimal clearance between the bumper cover and the bumper bar itself.
  10. Bumper bars must remain in the confines of the body lines and body work, without additional covers or body work extensions in order to do so.
  11. The bumper covers must be approved and be acceptable to the COMPETITION DIRECTOR.
  12. Bumper must be fixed use of shocks absorbers / dampers, springs, pivots and slip joint will not be allowed in the design of the bumper structure.
  1. Suspension and Brakes
  1. In-cockpit / Driver adjustable suspension will not be allowed. Examples include but not limited to sway bars and electronic shock / damper adjusters such as the Tein EDFC.
  2.  Driver adjustable brake bias is allowed.
  3. Front Suspension
  1. OEM front sub-frames and cross members must be stock and available on the exact year make and model that is competing.
  2. Original suspension design type must remain: Double wishbone, MacPherson strut etc.
  3. Modified or aftermarket suspension parts, including hubs, are allowed.
  4. Suspension relocation brackets that move suspension points or pivots regardless if they are bolt in to the chassis will not be allowed.
  5. MacPherson strut upper mount pivot must remain within the centerline dimension of the OEM unaltered factory bolt pattern on the chassis. Refer to Figures 6 and 7. The OEM pattern on the chassis must remain unaltered and be the only means of mounting the upper strut mount. All OEM bolt holes must be present and utilized.

  1. Vehicles with MacPherson upper strut mounts not represented in the illustration must contact the MotoIQ Technical Department
  2. Front subframe must remain in the factory location: no relocation of the subframe on any plane will be allowed
  3. All original suspension mounting tabs must remain in the original position. NO cutting, welding, bending, drilling or modifications of any kind will be allowed.
  4. Front subframes may only be modified to directly allow for oil pan/ starter clearance and steering rack relocation. The front subframe must retain intact on at least one major member on one face that spans the entire width of the subframe, thereby keeping the original dimensions of the subframe intact. Any other modifications, cutting, welding, strengthening, etc is not allowed.
  1. Steering
  1. Modifications of steering components (steering rack, tie rods, etc.) are free.
  2. This includes mounting the rack to the front subframe.
  1. Rear Suspension - Live Axle
  1. The original chassis mounting points must remain unaltered and in the original factory position
  2. Suspension relocation brackets that move suspension points or pivots regardless if they are bolt in to the chassis will not be allowed
  3. Original suspension design must remain: 3 link, 4 link, etcl.
  1. Rear Suspension - Independent
  1. OEM Rear sub-frames and cross members must be stock and available on the exact year make and model that is competing in MotoIQ Drift League
  2. Original suspension design type must remain: 5 link, 4 link, strut, etc.
  3. Modified or aftermarket suspension parts, including hubs, are allowed.
  4. All original suspension mounting tabs must remain in the original position. NO cutting, welding, bending, drilling, or modifications of any kind will be allowed including subframe bushing to chassis mounts.
  5. Additional mounting tabs may be added to the relocate the suspension arm mounting points a maximum of 2 inches on any plane from the original mounting position.
  6. This will be measured center to center from the original pivot point to the new pivot point. Please refer to Figure 8. This rule only applies to vehicles with a rear subframe

  1. Rear subframes may be modified to allow for mounting or relocating a differential. The rear subframe must retain at least one major member that spans the entire width of the subframe, thereby keeping the original dimensions of the subframe intact. Any other modification(s) such as cutting, welding, strengthening, etc is not allowed. 
  1. Brake System
  1. The primary brake system must operate all 4 wheels.
  2. Brake systems may be biased only front to rear. No brake bias may be used in a side to side configuration.
  3. Dual master cylinders pedal assemblies are allowed.
  4. Driver adjustable brake bias is allowed.
  5. When a brake light pressure sensor is used it must be mounted in line with the front brake master cylinder and have no restrictions in between.
  6. Brake pressure switch must be mounted within 1 foot of the master cylinder.
  7. Secondary hydraulic e-brake systems are allowed as a fully separate system or as a pass through system.
  8. Secondary Brake system / E-brake must only operate the rear wheels.
  1. Wheels
  1. Beadlocks, wheel screws and any means of attachment between wheel and tire is prohibited.
  2. The space between the rim and the internal portion of the tire must be filled only with air. Use of inner tubes, tire balls, Mousse, Tubliss systems, and tire pressure relief valves are not allowed.
  3. Wheels must be DOT approved for use on passenger car vehicles including bead seat profile and dimensions.
  1. Drivetrain
  1. Engine
  1. Engine substitutions and modifications are free, but may only run on gasoline, diesel, and ethanol blends. All other fuels require written approval from the COMPETITION DIRECTOR.
  2. All fluid systems must be free of leaks.
  1. Cooling System
  1. Cooling system modifications are free but must be fully closed and free of leaks
  2. Automatic water sprayers will be allowed during competition, but must not be leaking on the track, starting line, or grid area.
  3. If cooling system lines are routed in the driver’s compartment or a trunk area that is open to the driver, they must be separated from the driver by a crushable metal enclosure made up of .036-inch steel, or .059 inch aluminum. The floor of the enclosure must be designed to prevent accumulation of fluids.
  4. Cooling systems shall be filled with water only. Coolant Additives such as NEO “Keep Cool” and Redline “Water Wetter” are allowed.
  5. Radiator catch tanks are required. Catch tanks must be securely fastened and sealed from the driver’s compartment.
  1. Oil System
  1. Oil system modifications are free but must be fully closed and free of leaks
  2. If the oil tank is located in the driver’s compartment area, or a trunk area that is open to the driver, it must be separated from the driver by a metal enclosure made up of .036-inch steel, or .059-inch aluminum.
  3. The floor of the enclosure must be designed to prevent accumulation of fluids.
  4. All crankcase vents must be plumbed back into the intake tract. If vented to atmosphere, it must be plumbed to an oil catch tank with a minimum capacity of one (1) quart. Catch tanks must be securely fastened and sealed from driver’s compartment.
  5. All engine components and exterior components that support engine operation such as oil cooler, Accu-sump, drum-sump tank, oil filter, and oil lines must be protected and within the confines of a structural member of the car.
  1. Fuel System
  1. Fuel Tank/Cell
  1. The fuel system design is free, but engines may only run on gasoline, diesel, and ethanol blends. All other fuels require written approval from the COMPETITION DIRECTOR.
  2. Stock fuel tanks are acceptable.
  3. Safety fuel cells are required for all vehicles with a relocated fuel tank.
  4. Safety fuel cells must be SFI or FIA approved.
  5. Safety fuel cell support structures must be welded to the vehicle. Bolt on support structures are prohibited.
  6. If the factory fuel tank is retained it must mounted in the factory location, and in the factory manner while being enclosed by the factory sheet metal.
  7. Drag race style fuel cells with bottom mount sumps and or fittings are prohibited. Fuel cells meeting SFI 28.1 are recommended.
  8. Fuel tank/cell must be separated and completely sealed to prevent the passage of fluids or flames from entering the driver’s compartment by a permanently mounted steel or aluminum bulkhead. The bulkhead in a hatchback vehicle must be affixed to the chassis and no movable structure or panel such as the hatch will be allowed as part of the bulkhead. Fuel cells may be installed in the interior of the vehicle, preferably within the confines of the roll cage structure.
  9. The floor pan may be modified to fit a fuel cell and lines.
  10. Fuel cells must have a flapper valve installed to prevent spillage in the event of a roll over.
  11. Fuel System must not leak on the track, starting line, or grid area.
  12. Installation of Discriminator valves may be required on vent lines to prevent fuel leaks.
  1. Fuel Lines
  1. Fuel lines and fittings must be high-pressure type and routed in such a way that do not interfere with moving parts and be securely insulated and attached to the unibody or chassis.
  2. No fuel lines may be routed through the driver’s compartment.
  3. Teams may install dry-break fuel-filler attachments in the rear quarter windows or into the rear windshield or trunk lid to facilitate refueling from outside the vehicle.
  4. There shall be a flexible tube between the fuel filler neck and the fuel cell/tank to allow for misalignment of the tube as the result of an accident as well as a one-way “flapper” valve. (not required for stock fuel tanks)
  1. Nitrous Oxide
  1. Nitrous Oxide bottles must be securely mounted inside the body line and protected within the confines of the factory frame rails and factory bumper or tubular bumper structure.
  2. All Nitrous bottle must be stamped with minimum DOT -1800 pound rating.
  3. The use of commercially available thermostatically controlled bottle warmers is accepted. The use of any other method of externally heating nitrous bottles is prohibited.
  4. The use of plastic bottle brackets is prohibited.
  5. Nitrous bottles located in the driver compartment must have a “BLOW DOWN TUBE” which consists of a pressure relief valve (Example from NOS- Part number NOS 16169) and be vented to the outside of the driver compartment (Example from NOS- Part number NOS 16160).
  1. Exhaust Systems
  1. Exhaust system modifications are free.
  1. Starter
  1. All vehicles must be equipped with an on-board starter and power supply which must be in working order at all times.
  1. Transmission
  1. All vehicles must be equipped with a functioning reverse gear
  2. Transmission and/or final drive modifications are free, but only the rear wheels may propel the vehicle.
  1. Driveshaft
  1. All vehicles must have a driveshaft retaining loop mounted within 6 inches of the forward most universal joint and be securely attached to a unibody or frame structure as in Figure 9.

  1. The driveshaft loop may be made of minimum .250-inch x 2-inch wide steel strap or .875-inch x .065-inch steel tubing and be securely mounted in case of universal joint failure. (Example from Summit Racing- Part number SUM-G7900) 
  2. 2-piece driveshafts are allowed.
  1. Traction Control
  1. Traction control and other non-specified “driver aids” are not allowed including but not limited to speed sensors, linear transducers, driveshaft rpm, and steering position.
  2. Wheel speed and driveshaft sensors must be removed. (factory speedometer sensor may remain)

  1. Electrical System
  1. Battery
  1. The battery must be securely mounted and the positive terminal completely insulated to avoid contact with any other metal parts.
  2. A maximum of two batteries are allowed on vehicles with an internal combustion engine.
  3. Batteries may be relocated.
  4. Relocated batteries must be fastened to the frame or unibody with a minimum of two 3/8-in diameter bolts.
  5. Plastic hold down brackets and J bolts or hooks are prohibited. Unless they are the specified factory hardware.
  6. If the battery is located in the driver’s compartment, it must in a sealed box bolted with the battery fastened inside the box securely bolted to the unibody/ chassis and properly vented and drained.
  7. Refer to Figure 10 (Example from Taylor Cable- Part number 48103)

 

  1. Master Cutoff
  1. A Master electrical cutoff switch, wired to completely shut off all engine and electrical system function except for electrically operated fire suppression systems is mandatory and must be mounted outside the vehicle, on the right side cowl just below the windshield and is to be clearly marked with the appropriate “OFF” markings. (2018 exceptions may be granted by tech director)
  2. The electrical terminals of the cut-off switch and/or any relays used in the circuit must be sufficiently insulated.
  1. Body Exterior and Interior
  1. Body Panels
  1. Vehicles must maintain the OEM look and feel.
  2. Panels must be clean and presentable for competition.
  3. All bodywork must be painted or covered and securely attached to the vehicle. Carbon fiber panels may remain unpainted as long as they are presentable.
  4. Aftermarket body panels, front and/or rear fascias, side skirts and wings are permitted.
  5. One piece front ends are not permitted.
  6. Over fenders are permitted.
  7. Body work that is not designed as OEM or an OEM replacement of the original make and model of the vehicle must be approved by the COMPETITION DIRECTOR.
  8. Bumper bars must remain in the confines of the body lines and body work, without additional covers or body work extensions in order to do so.
  9. The bumper covers must be approved and be acceptable to the COMPETITION DIRECTOR.
  10. All aftermarket panels and aerodynamic devices must be securely fastened.
  1. Doors
  1. Doors must be mounted to the chassis with hinges. (quick release doors are prohibited)
  2. Doors must use the factory latch mechanism
  3. The inside and outside door latch/ lock operating mechanism must be functional and readily accessible for the driver to exit the vehicle.
  4. Doors with an exposed interior must have the sharp edges removed or covered. 
  1. Wing
  1. No vertical aerodynamic elements may be added to vehicles other than two wing standoffs and two wing end plates.
  2. The size of each may not exceed 12x16 inches dimensionally in size per piece. Wings with standoffs must have the endplates and the wing tethered with independent cables to the vehicle. Contact Formula Drift for the specifications required on wing tethers.
  3. Wings must be securely bolted to the vehicle use of quick release pins is prohibited.
  4. The installation of these devices may not obstruct the view, from any angle, or operation any of safety device, signaling light, indicator, or other equipment.
  1. Windshield
  1. Windshields must be OEM glass or Lexan/polycarbonate replacement.
  2. Lexan/polycarbonate windshields must be a minimum thickness of .1875-inch
  3. Lexan/polycarbonate windshields must be securely mounted and have a vertical brace .750-inch wide x .0625-inch aluminum which is securely mounted down the center of the opening on inside the vehicle.
  4. Windshields must be clear, use of tint is prohibited.
  1. Window and Window Restraints
  1. Door, quarter and rear window must be OEM glass or clear/polycarbonate with minimum thickness of .125-inch and securely bolted in place.
  2. Side windows shall have a window net, OEM glass, or a piece of Lexan/polycarbonate in place of both front window openings whenever the vehicle is on-track.
  3. Competitors may choose to use arm restraints in lieu of side windows or a window net.
  4. Competitors with convertible vehicles must use arm restraints.
  1. Mirrors
  1. Two external, rear-facing mirrors are required, and must be positioned so that the driver can see objects along both sides of the vehicle.
  2. OEM mirrors in the OEM mounting position are encouraged.
  1. Hood Pins
  1. Two hood pins, equally spaced across the front of hood and are required within 24-inches of the leading edge of the hood.
  1. Towing Apparatus
  1. Must be equipped front and rear as follows:
  2. Load Rating of not less than the gross vehicle weight
  3. Minimum internal hole diameter of 2-inches
  4. If made of a metal it must not protrude more than 3in from a blunt surface.
  5. Colored in a contrasting color to the surrounding body work
  6. If not clearly visible must that their position clearly indicated by the word “TOW” or an arrow in a contrasting body color.
  7. Factory tow hooks are ok, if they are permanently attached to the vehicle. (No “screw in” tow hooks).
  1. OEM Lights
  1. Headlights, tail lights and brake lights must function normally.
  2. Brake lights and tail lights may only be red.
  3. Any variation of red and or orange colored headlights is prohibited.
  4. The use of electrical, mechanical, and or hydraulic cutoff switches, relays, or any other device that renders the brake lights inoperative in any way, is strictly prohibited.
  1. Interior
  1. All non-essential and/or loose items must be removed.
  1. Dashboard
  1. Vehicles must be equipped with a factory or aftermarket/custom dashboard.
  2. Dashboards cannot have unsafe or sharp edges.
  1. Driver’s Safety Equipment
  1. Fire Safety
  1. A 2 lb. ABC Fire extinguisher is required and must be mounted within driver’s reach while seated
  1. Helmet
  1. All occupants must wear a safety helmet during on-track sessions. Only helmets certified to meet the following standards are permitted:
  1. Snell Memorial Foundation - SA2010, SAH2010, SA2015
  2. SFI Foundation - Spec 31.2A
  3. FIA 8860-2004,8660-2001
  1. Full-face helmets are required.
  2. Helmet chin straps must be buckled or fastened while on course.
  3. Hair protruding from beneath a driver’s helmet must be completely covered by fire-resistant material. Drivers with facial hair must wear face shields of fire-resistant material (i.e. balaclava or helmet skirt).
  1. Driving Suit
  1. One-piece driving suits are required and must made of fire-resistant material and certified to SFI spec 3.2/A/5 or greater, or homologated to FIA 2000 specs, which effectively covers the body, including neck, ankles and wrists. Multi-layer driving suits are recommended.
  2. Gloves, shoes, and socks required and must be fire-resistant material and certified to SFI spec 3.⅗ or greater, or FIA 8856-2000 specs.
  3. Articles must be free of holes, tears or other openings except those made by the manufacturer of the equipment.
  4. Fire-resistant underwear is recommended.
  1. Seats
  1. Driver’s seat must be homologated to FIA standard 8855-1999.
  2. The usable life of an FIA homologated seat is 5 years from the date of the manufacture indicated on the seat label.
  3. Seat Supports shall be of the type listed on FIA technical list No. 12 (lateral, bottom, etc.)
  4. All hardware used in the mounting of seats, or other structural supports shall be SAE Grade 5 or better with a 5/16” minimum diameter, or manufacturer specified hardware.
  5. Passenger seats are required. Factory seats are acceptable.
  1. Seat Belts
  1. Driver’s seat must utilize either a five-point, or six-point, restraint harness meeting the following specifications at all times during practice, qualifying, and the race.
  2. A minimum five-point system is required for use in automobiles is required. The system consists of a two or three in lap belt, three-inch shoulder straps or two-inch shoulder straps when used with an approved SFI 38.1 Head and Neck Restraint, and a single or double sub strap with a minimum two-inch webbing.
  3. All Harness belts must meet either SFI or FIA Homologations:
  4. There shall be a single release common to the lap belt, shoulder belts, and sub-strap harness.
  5. SFI Certification – Harness systems may be certified to SFI spec 16.1 or 16.5 and shall bear the appropriate label(s) on shoulder belts, lap belts and sub-straps. Each harness is punched with the year and month of manufacture.
  6. SFI Certification expire 2 years after the punched month and date on the belt.
  7. SFI 16.1 belts must have a 3 inch lap belt. 2 inch Head and Neck Restraint specific shoulders are permitted when used with an approved SFI 38.1 Head and Neck Restraint.
  8. SFI 16.5 belts may have a 2 or 3 inch lap belt. 2 inch Head and Neck Restraint specific shoulders are permitted when used with an approved SFI 38.1 Head and Neck Restraint.
  9. FIA Certification –Harness systems may be homologated by the FIA to specification 8853/98, and shall bear the appropriate label(s) on each element of the belt. FIA belts are dated with an expiration year with the belts expiring on December 31st of the year punched or printed on the FIA tags.
  10. FIA belts have a certification period of 5 years plus the remaining months of the year purchased.
  11. Regardless of the date of manufacture, the safety harness shall be replaced if the webbing is cut/ frayed, if any of the buckles are bent/cracked or if the vehicle has been in a severe impact.
  12. Only separate shoulder straps are permitted. “Y-type” and “H-Type” configurations are not allowed. Sternum straps connecting the two shoulders belts over the chest are not allowed. The shoulder harness shall be mounted as closely behind the seat back as possible, not to exceed twelve inches (12”). The shoulder harness shall be above a line drawn downward from the shoulder point at an angle of no more than 20-degrees with the horizontal and shall not be above 0-degrees. The shoulder straps shall pass through the seat back when the occupant is seated, without interference (up, down, or side to side), to the attachment points. (Figure 1).
  13. The lap belts shall be mounted rearward of the pelvis, between two lines drawn at 45-degrees, and 80- degrees, below the horizontal with the optimum angle of 60-degrees (Figure 1). The lap belts shall pass through the seat, without interference, from the attachment points and should ride over the pelvis, just below the pelvic crest, to the buckle. The top of the buckle should be positioned at least 1-inch below the belly button. The lap belt attachment must allow the lap belt to pivot at the mounting point to prevent the webbing from being loaded at an edge when loaded and must pull on the hardware in plane.
  14. The minimum acceptable bolts used in the mounting of all belts and harnesses are SAE Grade 5. Where possible, seat belt, shoulder harness, and anti-submarine strap(s) should be mounted to the roll structure, or frame of the vehicle. Where this is not possible, large diameter mounting washers or equivalent should be used to spread the load. Bolting through aluminum floor panels, etc., is not acceptable.
  15. The single or double anti-submarine strap(s) shall be attached to the floor structure of the vehicle and have a metal-to-metal connection. Bolts through the floor pan must use a backing plate on the underside of the body. If the chassis does not have a steel floor pan, other provisions must be made to provide a steel plate or bar traversing the frame rails and transmission tunnel of sufficient strength to take a minimum load of at least 1,200lbs for each mounting point.
  16. All seat belt systems are to be mounted according to the manufacturer’s instructions or to the SFI Guide to Seat Belt Mounting (Figure 2)
  17. If “3-bar” adjusters are used for a lap or shoulder belt, they shall be placed as close to the mounting points as possible and must be wrapped with the final loop (Figure 4). Straps utilizing a hook with a spring-loaded clip, which attaches to an eyebolt, must use a cotter pin, or safety wire, through the small hole that prevents the clip from opening.

  1. Arm Restraints
  1. Competitors may choose to use arm restraints in lieu of windows or a window net.
  2. Competitors with convertible vehicles must use arm restraints.
  1. Head and Neck Restraints (RECOMMENDED, NOT REQUIRED)
  1. Head and neck restraint certified in accordance with SFI 38.1, FIA 8858-2002 or 8858-2010 are required at all times on track during practice and competition.
  2. SFI 38.1 devices must be recertified by the manufacture or authorized manufacturer representative every 5 years. Each certification is good for 5 years from the month and year punched on the SFI label.
  3. FIA 8858 devices do not require recertification however the dating year printed on the tether must not be more than 5 years old.
  4. After any significant impact, it is recommended that the device tether be replaced.
  1. Tires
  1. Tire Regulations
  1. Front and rear tires are limited to maximum sidewall printed size of 255.
  1. Tire Modification
  1. Any attempt to modify tires in any manner is prohibited. “Grooving” or “Shaving” of tires is prohibited.
  2. The use of traction compounds or any other substance that may alter the physical properties of the tire are prohibited.
  3. Tire warmers or any other means of artificially altering the tire temperatures are prohibited.
  4. Tire balancing with fluids or internal loose weights is prohibited.

The Drift League by MotoIQ | 2018 Technical Rules & Regulations | v1.1 5/21/2018