*Win

Decals
Competition Vehicle:
Formula D windshield banner will be provided at the beginning of the season or upon
registration. Windshield must be left open for that purpose.

SCCA Pro Racing issued decals must be place on door panels of the competition vehicle, one on the left door and one on the right door.

Competition Numbers must be placed on the top left (when looking at the car) of the front windshield. For competitors committed to competing in the entire Series can be selected by the driver/teams themselves. Numbers must be between 2 and 99. It will be a first-comefirst-
serve basis. Competitors that do not commit to the entire Series will be issued their
competition number during registration. These numbers will range from 100 to 200.

Driver’s Suits:
A minimum of one Formula Drift and one SCCA Pro Racing logo via patch or direct embroidery must be on the competitor’s driving suit. Call Slipstream office for patches.

Points
First Place = 100
Second Place = 80
Third Place = 60
Fourth Place = 50
Best 8 (4) = 40
Best 16 (8) = 20
#1 Qualifier = 8
#2 Qualifier = 7
#3 Qualifier = 6
#4 Qualifier = 5
#5 & #6 Qualifier = 4
#7 & #8 Qualifier = 3
#9 to #12 Qualifier = 2
#13 to #16 Qualifier = 1

13. Prize Money:
Each Round
First Place = $2,000
Second Place = $1,000
Third Place = $500

Championship
First Place = $7,000
Second Place = $2,000
Third Place = $1,000

Code of Conduct:
A) Driver Apparel: Drivers Uniform (Specifications in Section1)
B) Driver Appearance: Uniform must be clean and series required patches must be installed in specified location
C) Team Appearance: Clean and professional

The Driver is responsible for his and his crews conduct all times during a Formula Drift event. Drivers, crews and officials are to act in a professional manor.

SCCA MEMBERSHIP AND PARTICIPANT LICENSE
All drivers and crewmembers, working in the pits, or other designated high-risk area, must be 18-years, or older, be a current SCCA and SCCA Pro member, and hold a current SCCA Pro Participant I.D. License. Participants 16-18 years old may be admitted upon issuance of a SCCA Pro Minor Participant I.D. License. Minor Participant I.D.’s must be issued from the SCCA Pro office, and will not be issued at event registration. The SCCA Pro Participant I. D. will remain the property of SCCA Pro. Privileges may be revoked at any time for noncompliance with this rule book.

All persons must sign the SCCA Pro Release and Waiver Agreement (waiver) prior to receipt of credentials (passes).

ALCOHOL, NARCOTICS, PERFORMANCE-ENHANCEMENT DRUGS, and/or RECREATIONAL DRUGS

The use of any narcotic, performance-enhancement drugs, and/or recreational drugs, as
defined by federal and/or state law, by any participant, is expressly prohibited, even if
prescribed by a licensed physician.

Consumption of alcoholic beverages shall not commence until all official functions of a
specific series has been completed.

SCCA Pro reserves the right, at any time, to require any participant to successfully complete, at participant’s expense, such tests as may be designated by SCCA Pro,
including, but not limited to, breath, blood, or urine. The Medical Director of SCCA Pro, or his designee, may perform such tests. Refusal to submit to, and/or failure by participant of, such testing shall result in penalties or removal from the event and/or series.

ARTICLE 1.1: ADMINISTRATOR and SANCTIONING AUTHORITY

1.1.1: SCCA Pro Racing, Ltd. (“SCCA Pro”) a wholly owned subsidiary of Sports Car Club of America, Inc. (SCCA) administers and sanctions all Formula Drift Championship events.

1.1.2: An SCCA Pro representative shall be present at any official meeting, or hearing,
involving interpretation, or implementation, of this rule book.

1.1.3: At race events, the SCCA Pro Chief Event Director has authority for the conduct of all aspects of the event; with all other race Officials reporting to him.

Race Series Officials have authority for the management, administration, and sanctioning of the Series, with ultimate authority retained by the President of SCCA Pro Racing.

1.1.4: KNOWLEDGE of, and SUBMISSION to RULES
Every person, entity, group of persons, region of the SCCA, or organizer who applies for, and is granted an SCCA Pro-sanction to conduct an event, and any person who receives an SCCA Pro license, warrants that:

1.1.4.1: He is acquainted with the series rules.

1.1.4.2: He agrees without reservation to abide by the series rules.

1.1.4.3: He renounces the right to have legal recourse, except with the written consent of SCCA Pro, to any arbitrator, or tribunal, not provided for in the rules.

1.1.5: FINALITY of INTERPRETATION and APPLICATION
SCCA Pro officials shall make the interpretation, and application, of the rules. Their decisions shall be final and binding. In order to promote the sport of automotive competition, to achieve prompt finality in competition results, and in consideration of the numerous benefits to them, all participants and entrants, (including competitors and officials) expressly agree that:

• Determinations by SCCA Pro officials are non-litigable;

• They will not initiate or maintain litigation of any kind against SCCA, SCCA Pro, or
anyone acting on behalf of SCCA, or SCCA Pro, to reverse, or modify, such
determinations, or to seek to recover damages, or other relief allegedly incurred, or
required, as a result of such determination and;

• If a participant, entrant, competitor, or official initiates, or maintains, litigation in violation of this provision, that individual or entity agrees to reimburse SCCA, and/or
SCCA Pro, for all costs of such litigation, including travel expenses, and attorneys’ fees. Competitors, or officials, involved in such litigation will have all SCCA Pro privileges suspended until litigation is complete.

1.1.5.1: SCCA Pro reserves the right to amend, or modify, the rules at any time (including individual series regulations and event supplementary regulations) via Supplementary Regulations, Tech Bulletins, Competitor Bulletins, or Pro Racing Memos.

1.1.5.2 The English text of these regulations will be used should any dispute arise
regarding their interpretation. The final authority shall be the printed version of this text,
plus bulletins, memos and supplementary regulations.

1.1.5.3: All Supplementary Regulations must be pre-approved by SCCA Pro.

Technical Inspection:

SAFETY INSPECTION – At the beginning of each event the TECHNICAL ADMINISTRATOR will conduct an annual inspection of each entered car. An annual tech sticker will be placed on the main roll bar hoop at drivers left. At the beginning of each event, the Technical Administrator, or his assigned representative, will conduct a safety inspection of entered vehicles that are new to the Series and have not had an annual inspection. Upon verification of conformance, an annual tech sticker will be issued. The annual tech sticker will be withheld from any vehicle that does not comply with the Required Safety Specifications. If the tech sticker is withheld, it is the team’s responsibility to meet with the TECHNICAL ADMINISTRATOR to determine what action is required to achieve compliance. The TECHNICAL ADMINISTRATOR shall maintain inspection records of each entered car.

Issuance of the tech sticker is not an endorsement of the performance of the vehicle, nor
an indication that the vehicle meets all of the required Technical Specifications. The tech
sticker signifies that the vehicle has passed the initial Safety Inspection and will be
permitted to go on course during scheduled Formula Drift practice, qualifying and race
sessions.

Any car which after being passed by the TECHNICAL INSPECTOR is dismantled, or
modified, in any way which might affect its safety, or call into question its eligibility, or
which is involved in an accident with similar consequences, must be re-presented by the
team for scrutineering approval.

If there is damage to the chassis of the vehicle, the tech sticker shall be removed from
the vehicle. A new tech sticker may be issued after the vehicle is repaired and
reinspected.

Eligible Vehicles:
A) Any 2 or 4 door coupe, sedan or sports car.
B) Must be a production car with a minimum build run of 250 units
C) Must maintain original unibody or frame
D) Vehicles that do not meet the above criteria must be approved by the series.

Body Work:
A) Must be clean and presentable
B) Aftermarket body panels, front and rear fascias and wings are permitted; make and model must remain recognizable. The driver’s side door must maintain the O.E.M side impact protection.
C) All body work must be securely latched or fasten.
D) Windshield must be O.E.M or clear Lexan with a minimum thickness of
6mm and maintain the shape of the O.E.M windshield
E) Door, quarter and rear glass must be O.E.M or clear Lexan with a minimum thickness of 3mm and securely bolted in place
F) Unibody/chassis my be seam welded
G) All required Formula Drift decals must be present in there specified location. Windshield Banner required for competition. Formula Drift will provide the materials.

Engine/Transmission:
A) Engine and transmission modifications are free.
B) Engine and radiator catch tanks with a minimum capacity of one (1) quart each are required and securely fastened.
C) Engine, transmission and cooling system must free of leaks, fluid leaks will not be tolerated
D) All vehicles must be rear-wheel drive. Drive train may be modified, but must push power from the rear wheels.

Fuel System:
A) Is free, 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/chassis.
B) Fuel cells are recommended.

Electrical System:
A) Master electrical cut-off switch is recommended and should be mounted
outside the vehicle and clearly marked.
B) Battery must be securely mounted and the positive terminal insulated. Battery may be relocated, if in the cockpit it must in a sealed box bolted to the unibody/chassis with the battery securely fastened inside the box.
C) Headlights, tail lights and brake lights must be in working order.

Exhaust System:
A) Exhaust system is free
B) Must exit outside of the body work
C) Must not exceed 100db at 50 feet

Brake System:
A) Brake system must operate all 4 wheels
B) Brake calipers, lines, rotors, pedals must in good working order.
C) Dual master cylinders pedal assemblies are allowed.
D) Brake bias may be driver adjustable.

Interior:
A) All non essential items may be removed.
B) Gages are free; dash board must be O.E.M or O.E.M replacement.
C) Must be clean and professional in appearance.
D) Drivers seat, safety harness mounting see section 1

Section 1: Safety Equipment
Required Safety Equipment

1.1 DRIVER SAFETY EQUIPMENT
Each driver must wear the following equipment in all on-track sessions:

1.1.2: A safety helmet shall be worn by all drivers. Helmets certified to the following standards are permitted;
Snell Memorial Foundation – SA95, SA2000
SFI Foundation – Spec 31.2, Spec 31.2A
British Helmet Standard – BS 6658:1958

1.1.3: Accident-damaged helmets shall be given, or sent, by the driver, or his representative, to SCCA Pro Racing, LLC, P.O. Box 19400, Topeka, KS 66619-0400. It
will be forwarded to the certifying organization. Details of the accident should be included.

1.1.4: Drivers must wear a helmet during all on-track sessions.

1.1.5: Hair protruding from beneath a driver’s helmet must be completely covered by fireresistant material. Drivers with facial hair must wear face shields of fire-resistant material (i.e. balaclava or helmet skirt).

1.1.6: Only one-piece driving suits made of fire-resistant material and certified to SFI
spec 3/2A-1, or homologated by the FIA, which effectively covers the body, including
neck, ankles and wrists, will be accepted. Multi-layer driving suits are recommended.

1.1.7: Fire-resistant underwear is required with single and double layer suits, but is not
required with three, or more, layer driving suits unless the suit manufacturer so specifies.

1.1.8: Socks must be made of fire-resistant material, and shoes and gloves must be
made of leather, or any approved fire-resistant material containing no holes, except those made by the manufacturer of the equipment.

1.1.9: Driver restraint system see Appendix J.

1.1.10: Any corrective eye glass material used shall be of safety glass-type, and meet U.
S. Government standards.

Appendix J

J.2: All drivers in SCCA Pro events must utilize either a five-point, or six-point, restraint harness meeting the following specifications at all times during practice, qualifying, and the race.

J.3: A five-point system is required for use in automobiles where the driver is seated in an upright position, and consists of a three-inch seat belt, three-inch shoulder straps, or two-inch shoulder straps with three-inch wide professional padding, and a two-inch anti-submarine strap. The single anti-submarine strap shall be attached to the floor structure of the car similar to the shoulder harness mounting and have a metal-to-metal connection with the single release common to the seat belt and shoulder harness. A six-point system may also be used, and is recommended.

J.4: A six-point system is required for use in automobiles where the driver is seated in a semi-reclining position and consists of either a three-inch seat belt, three-inch shoulder straps, or two-inch shoulder straps with three-inch wide professional padding, and two, approximately two-inch, leg straps. The double leg straps of the six-point system may be attached to the floor, or be attached to the seat belt so that the driver sits on them, passing them up between his legs and attaching them either to the single release common to the seat belt and shoulder harness, or attaching them to the shoulder harness straps. It is also permissible for the leg straps to be secured at a point common to the seat belt attachment to the structure, passing under the driver and up between his legs to the seat belt release, or shoulder harness straps.

J.5: The material of all straps shall be nylon, or Dacron polyester, and in new or perfect
condition. The buckles must be of metal-to-metal quick-release type, except in the case of leg straps of the six-point system, where they attach to the seat belt, or shoulder harness straps.

J.6: The shoulder harness shall be the over-the-shoulder type. There must be a single
release common to the seat belt and shoulder harness. Only separate shoulder straps are permitted. (Y-type shoulder straps are not allowed.) “H”-type configuration is allowed.

J.7: In cases where the driver is in a semi-reclining position, the shoulder harness shall be attached so that the angle between a line drawn through the driver’s spine and the shoulder harness is 70-degrees or greater.

J.8: All straps must be free to run through intermediate loops, or clamps/buckles. If 3-bar
adjusters are used, they shall be placed as close to the mounting points as possible. 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.

J.9: Drivers of open cockpit cars must use arm restraints.

J.10: The minimum acceptable bolts used in the mounting of all belts end 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 car. 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.

J.11: SFI Certification - Harness systems may be certified to SFI spec 16.1, and shall bearthe appropriate label(s). This certification shall expire on December 31st of the 2nd year, after the year of manufacture. The harness system may be sent to the manufacturer for re-webbing and recertification.

FIA Certification - Harness systems may be homologated by the FIA to specification 8853/98, and shall bear the appropriate label(s). It is recommended that the harness
system be replaced every three (3) years, but the mandatory replacement date is the 5th year after production. The expiration date, instead of the date of manufacture, is printed on the FIA label(s).

J.12: 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 car has been in a severe impact. If any of these conditions exist, the TECHNICAL ADMINISTRATOR shall cut the certification labels off of the harness. The team will then have to return the harness to the manufacturer for recertification.

J.13: 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 20-degrees with the horizontal. The shoulder straps shall pass through the seat, without interference, to the attachment points.

J.14: The lap belts shall be mounted rearward of the pelvis, between two lines drawn at 45-degrees, and 65-degrees, below the horizontal. The lap belts shall pass through the seat, without interference, to the attachment points.

J.15: Two anti-submarine straps/leg straps as are found in a 6-point harness system, are highly recommended. If used, they shall be mounted behind the point where they wrap around the driver’s legs, and shall pass through the seat, without interference, to the attachment points. If a single anti-submarine strap is used, it shall be mounted
approximately 20-degrees behind the vertical point where it passes through the seat, and shall pass through the seat, without interference, to the attachment points.

Attach Drawing

For 2004 SCCA Pro Racing Sanctioned Drifting events a Roll Bars will be accepted Roll Cages will be required for 2005 SCCA Pro Racing sanctioned Drifting events.

2.1 ; Roll Bars
Roll Bars are required for all SCCA Sanctioned Professional Drifting events, these specifications apply to all vehicles unless specified differently in series specific rules.

The basic purpose of the roll bar is to protect the driver. It must be designed to withstand compression forces from the weight of the car coming down on the roll bar structure and to take fore/aft, and lateral, loads resulting from the car skidding along on its roll bar structure.

A. The Top of the roll bar must be a minimum of 2 inches over the drivers helmet when
the driver is sitting in a normal driving position (as near the roof as possible in closed
sedans) and shall not be more than six inches.

B. The two vertical members forming the sides of the hoop must extend the full width of
the cockpit to provide maximum bearing area.

C. A system of head restraint to prevent whiplash and prevent the driver’s head from striking the underside of the main hoop is required. The head restraint must be padded with a non-resilient material and must be capable of withstanding a force of 200 lbs. in a rearward direction. Closed cars with full cockpit-width main hoops must
have two (2) braces extending to the rear, and attaching to the frame, or chassis. Braces must be attached as near as possible to the top of the main hoop (not more
than 6” below the top), and at an included angle of at least 30-degrees. Main hoop rear bracing shall not extend rearward past the shock towers and must be of the
same dimensions as least equal to that of the main hoop. One diagonal from the top of the main hoop not more than 24” from the drivers side vertical down to the passengers side vertical. A Horizontal bar between the main hoop and diagonal no higher than shoulder high is required for shoulder harness mounting,

Vehicle                                   Material

Weight	Mild Steel	Alloy Steel
Up to 1500 Ibs.	1.375x.095	1.375x.080
1501 to 2499 Ibs.	1.500x.095	1.500x.095
2500 lbs. & Up	1.750x.095	1.750x.095

2.2 ROLL CAGES
These general specifications are for all automobiles. Roll cages will be required in all automobiles in 2005.

2.2.1 BASIC DESIGN CONSIDERATIONS

1. The basic purpose of the roll cage is to protect the driver if the car turns over, runs into an obstacle such as a guardrail or catch fence, or is struck by another car. It shall be designed to withstand compression forces from
the weight of the car coming down on the rollover structure and to take fore/aft and lateral loads resulting from the car skidding along on its rollover structure.

2. A system of head restraint to prevent whiplash and rebound and also to prevent the driver’s head from striking the underside of the main hoop shall be installed on all vehicles. Racing seats with integral headrests shall also meet this requirement and have a support to the main hoop. Seats homologated to, and mounted in accordance with FIA standard 8855-1999 or higher need not have the seat back attached to the roll structure. The head restraint on non-integral seats shall have a minimum area of thirty-six (36) square inches and be padded with a non-resilient
material such as Ethafoam® Ensolite®, or other similar material with a minimum thickness of one (1) inch. Padding meeting SFI spec 45.1 is recommended. The head restraint shall be capable of withstanding a force of two-hundred (200) lbs., in a rearward direction. The head restraint support shall be such that it continues rearward or upward from the top edge in a way that the driver’s helmet can not hook over the pad. The padded surface shall touch the helmet; it shall not be under fiberglass or other hard material.

3. Forward braces and portions of the main hoop subject to contact by the driver’s helmet (as seated normally and restrained by seatbelt/shoulder harness) shall be padded with non-resilient material such as Ethafoam® or Ensolite®, or other similar material with a minimum thickness of one-half (1/2) inch. Padding meeting SFI spec 45.1 is recommended.

Material: Alloy Steel or DOM

Vehicle                                   Material

Weight	Mild Steel	Alloy Steel
Up to 1500 Ibs.	1.375x.095	1.375x.080
1501 to 2499 Ibs.	1.500x.095	1.500x.095
2500 lbs. & Up	1.750x.095	1.750x.095

Note: ERW tubing is not permitted in any car registered with SCCA after of 01/01/2003.

Main hoop: 4 bends maximum, totaling 180 degrees ± 10 degrees.
Front hoop: 4 bends maximum or Front downtubes: 2 bends maximum.
Rear hoop supports: No bends.

If any of the above bend requirements cannot be met, all
components of the roll cage shall be fabricated from the tubing size(s) listed for the next heavier category of automobiles.

D. For purposes of determining tubing sizes, the vehicle weight is as raced without fuel and driver. The minus tolerance for wall thickness should not be less than .010" below the nominal thickness.

E. An inspection hole at least 3/16 inch diameter, but no greater than 1/4 inch diameter shall be drilled in a non-critical area of all tubes with a specified size to facilitate verification of wall thickness.

7. General Construction

A. One (1) continuous length of tubing shall be used for the main hoop member 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. Whenever possible, the roll cage hoop should
start from the floor of the car, and, in the case of tube frame construction, be attached to the chassis tubes by means of gussets or sheet metal webs with support tubes beneath the joints to distribute the loads. It is recommended that gussets be used

B. 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. Welds shall be continuous around the entire tubular structure.

All welds shall be visually inspected and shall be acceptable if the following conditions are satisfied:

1. The weld shall have no cracks.

2. Thorough fusion shall exist between weld metal and base metal.

3. All craters shall be filled to the cross section of the weld.

4. Undercut shall be no more than 0.01 inch deep.

C. 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.

18.2. BOLT IN ROLL CAGE
1. Full width roll cages are recommended in all Drifting automobiles. Roll cages installed in Drifting automobiles are for driver safety and shall be contained entirely within the driver/passenger compartment. The carpet/padding may be cut around the mounting base plates.

A. The cage need not be removable. It shall be bolted and/or welded to the car.

B. It shall attach to the car in at least than six (6) points, consisting of the basic cage with six (6) points and two optional braces.

C. The forward part of the cage shall be mounted to the floor of the vehicle. In addition, if the two optional braces referred to in 18.2.1.B are utilized they shall be mounted, one on either side, from the forward section of the cage to the firewall or front fender wells (see GCR Section 18.2., Figure 1). No braces shall pass through the front firewall.

2. Removable roll cages and braces shall be very carefully designed and constructed to be at least as strong as a permanent installation. If one tube fits inside another tube to facilitate removal, the removable portion shall fit tightly and shall bottom by design and at least two (2) bolts shall
be used to secure each such joint. The telescope section shall be at least eight (8) inches in length. Minimum bolt diameter is 3/8 inches.

3. For tubing sizes for front and main hoop and all required bracing, see 18.1.6.C.

4. Main Roll Hoop:

A. 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. It shall incorporate a diagonal lateral brace to prevent lateral distortion of the hoop (See Figure 1). Any number of additional reinforcing bars are permitted within the structure of the cage. It is required that the horizontal brace behind the driver’s seat (described in Section 18.2.10) continue from the diagonal to the passenger side main hoop upright or that a second diagonal be installed in the main hoop.

5. Front Roll Hoops:

A. The front or side hoops shall follow the line of the front pillars to the top of the windshield (as close to the roof as possible) then horizontally to the rear attaching to the main hoop. These two side hoops are to be connected together by a tube over the top of the windshield, or

B. A front hoop following the line of the front pillars and connected by horizontal bars to the main hoop on each side at the top may be used, or

C. A top “halo” hoop following the roof line from the main hoop to the windshield with forward down tubes following the line of the front pillars to the floor.

D. The front or side hoops may extend through the dash pad. This includes the forward part of the door panel if it is an extension of the dash panel.

E. One (1) bar is recommended in a horizontal plane between forward cage braces in the dash area.

6. Bracing:

The main roll hoop shall have two braces extending to the rear attaching to the frame or chassis. 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. On cars where the rear window/bulkhead prohibits the installation of rear braces (e.g., Honda del Sol), the main hoop shall be attached to the body by plates welded to the cage and bolted to the stock shoulder harness mounting points.

7. Side Protection:

A side tube connecting the front and rear hoops across the driver’s door opening is mandatory and across the passenger’s door opening is allowed (recommended). The telescope section should be at least four (4) inches in length. Minimum bolt diameter 3/8 inches. The driver’s window safety net may be mounted to this side tube and the top cage tube. Driver’s door side tubes may extend into the door. NASCAR-style side protection is permitted. The driver’s door window glass, window operating mechanism, inner door trim panel, armrest, map pockets, and inside door latch/lock operating mechanism may be removed and the inner door structural panel may be modified, but not removed to facilitate this type of side protection. The stock side impact beam and the outside door latch/lock operating mechanism shall not be removed or modified.

8. Mounting Plates:

A. Each mounting plate shall be at least .080 thick if welded and 3/16” thick (with appropriate backing plates) if bolted. There shall be a minimum of three (3) bolts per mounting plate if bolted.

B. Each mounting plate shall not be greater than 100 square inches and shall be no greater than twelve (12) inches or less than two (2) inches on a side.

C. Whenever possible, mounting plates shall extend onto a vertical section of the structure (such as a rocker box).

D. The mounting plate may be multi-angled but must not exceed these dimensions in a flat plane.

E. Any number of tubes may attach to the plate or each other.

9. Hardware: (Bolts)

All hardware shall be Grade 5 or better. 5/16" minimum diameter.

10. In order to provide a secure seat back support a section of tubing equal to the roll bar shall be installed horizontally from the main hoop upright to the diagonal brace. This tube shall be no higher than shoulder height. The driver’s seat shall be firmly mounted to the structure of the car. In cars where the seat is upright, the back of the seat shall be firmly attached to the main roll hoop, or it’s cross bracing.

Seats homologated to and mounted in accordance with FIA standard 8855-1999 or higher need not have the seat back attached to the roll structure. The homologation labels must be visible. Seat supports shall be of the type listed
on FIA technical list No.12 (lateral, bottom, etc).

Fig. 18.2.10.A
FIA Standard 8855 -1999
ABC Seats Ltd.
Model: Super Champion 1996
Homologation N° CS.OO1.96
Date of Manufacture: June 1996

Letters must be at least 8mm high
Sample FIA seat homologation label

REMOVABLE ROLL CAGE
Tubing Joints - See Figures 2, 3, and 4
Insert figures from page 141

18.4.4. Mounting Plates:
The thickness of mounting plates bolted to the structure of the car shall not be less than the thickness of the roll hoop or brace that they attach and shall be backed-up with a plate of equal dimensions on the opposite side of the panel, with the plate’s through-bolted together. A minimum of three (3) bolts per mounting plate is required for bolted
mounting plates. All hardware (bolts) shall be Grade 5 or better with 5/16" diameter minimum. Mounting plates welded to the structure of the car shall not be less than .080" thick. Whenever possible the mounting plates should extend onto a vertical section of the structure (such as door pillar).

18.4.5. Driver’s Seat
The driver’s seat shall be firmly mounted to the structure of the car. In cars where the seat is upright, the back of the seat shall be firmly attached to the main roll hoop, or it’s cross bracing. Bulkheads, firewalls, rear decks, or similar structures of suitable strength may be used as a substitute for the main roll hoop or cross bracing to provide the required seat back support.

Seats homologated to and mounted in accordance with FIA standard 8855-1999 or higher need not have the seat back attached to the roll structure. The homologation labels must be visible. Seat supports shall be of the type listed on FIA technical list No.12 (lateral, bottom, etc).

Fig. 18.4.5.A
FIA Standard 8855 -1999
ABC Seats Ltd.
Model: Super Champion 1996
Homologation N° CS.OO1.96
Date of Manufacture: June 1996

Letters must be at least 8mm high
Sample FIA seat homologation label

Figure 6: RECOMMENDED ROLL CAGE
HIGH FRONT HOOP OPEN AND CLOSED, GT



Figure 7: RECOMMENDED ROLL CAGE
OPEN-TOP CARS

NOTE: A low front hoop may only be used in open-top cars without a windshield.



Figure 8
REMOVABLE ROLL BAR BRACES

ATTACHMENT DETAILS



M.4: ROLL CAGE STRUCTURE MINIMUM TUBING SIZES

Section 3: Tires
A) Tires must be DOT approved and available in the Untied States
B) Tires must have a minimum tread wear rating of 140

APPENDIX N: CONVERSION CHART
1 inch = 25.4 mm = 2.54 cm
1 foot = 304.8 mm = 30.48 cm
1 yard = 914.4 mm = 91.44 cm
1 mile = 5280 ft. = 1.60934 km
1 cubic inch (c.i.) = 16.387 cubic centimeters (cc)
1 cubic centimeter = 0.061 cubic inch
1 liter = 1000 cc = 61.0255 cubic inch
1 liter = 0.264 US gallons = 1.0568 qt
1 US gal = 4 US qts = 231.18 cubic inches = 3.785 liters
1 ounce (oz) = 28.35 grams
1 pound (lb) = 16 ounces = 453.592 grams
1 kilogram (kg) = 1000 grams = 2.2046 pounds
1 mile per hour = 1.467 feet per second
miles per hour = 0.62137 x kilometers per hour
kilometers per hour = 1.60934 x miles per hour
degrees Fahrenheit - 32 x .555 = degrees Celsius
degrees Celsius x 1.8 + 32 = degrees Fahrenheit
psi x .069 = bars
bars x 14.5 = psi
foot pounds x 1.355 = Newton meters (Nm)
water = 8.34 pounds per US gallon
gasoline = 6.2 pounds per US gallon
methanol = 6.75 pounds per US gallon
1 millimeter = 0.03937 in
1 centimeter = 0.3937 in
1 meter = 39.37 in
1 kilometer = 0.62137 mi

Engine displacement = bore x bore x stroke x .7854 x no. of cylinders

Brake horsepower (BHP) =
RPM x torque (in lbs-ft)
          5250

MPH =
RPM x tire diameter (in inches)
          gear ratio x 336

Lap Speed =
track length (miles) x 3600 = MPH
          lap time (seconds)

Avg. Speed =
track length (miles) x 3600 x no. of laps = MPH
          total time (seconds)