G3 National Championships Race Rules

GENERAL Rules

1) The maximum width of any car is 1-5/16 inches (1.3125").
2) The maximum allowable lateral movement of the front axle is 1/32 inch.
3) After qualifying, and during the race, any part of the car may be replaced except for the body, chassis, and magnets.
4) The body shall be a replica of an actual car and must be painted.
5) Any body used must cover the chassis when viewed from above (except through legal openings).
6) Any car without a body or with an interfering body will not be allowed to continue to run.
7) Race Directors will have jurisdiction over individual races with final decisions (if necessary) made by the G3 Championships Coordinators.
8) Cars may be subject to a teardown either before or after a race to satisfy technical inspection.
9) Decisions regarding rule interpretations will be made by the G3 Championships Coordinators.

G-JET™ Car Class Rules

1) The chassis shall be a stock BSRT G3™ Flexible chassis with any hardness clip. The chassis cannot be modified except to add body mounts and the front axle holes may be reamed to .052".
2) Body mounts shall be located in their stock position.
3) The guide pin shall be stock or BSRT stock replacement in the stock position.
4) The use of glue shall not be allowed on the chassis or bulkheads except for the body mounts and guide pin.
5) Front axle and non-independent G-Jet™ O-ring rims shall be stock and un-modified. Front tires must be stock un-modified and be a minimum tire diameter of .350".
6) Rear tires shall be black silicone on black sponge BSRT G-Jet™ AST tires with a minimum diameter of .450" on a stock or BSRT stock replacement axle.
7) BSRT G-Jet™ marked handling weights shall be used. Weights shall be used in their stock location. No weights shall be added. Weights shall not be modified. If using the light (.120") traction weights you must use the BSRT traction weight spacers with a minimum thickness of .045".
8) Armature shall be a stock BSRT G-Jet™, narrow gap design, and be a minimum of 9-ohms. BSRT's G-Jet™ 9-ohm "Hot Stock" armature may be substituted for the stock unit.
9) All electrical system parts shall be stock or BSRT stock replacement. BSRT Helper Springs may be used.
10) Armature bushings shall be stock G-Jet™ or BSRT stock replacement and shall be installed without modification to the chassis and/or bulkhead. Bushings may be reamed and chamfered. Ball bearings may not be used.
11) The armature magnets shall be BSRT stock G-Jet™ and cannot be cut. Magnets shall remain in their stock position. No material or method may be used to restrict movement of the magnets. No additional magnets can be used.
12) Pinion gear shall be a stock G-Jet™ 7T or BSRT stock replacement.
13) Crown gear shall be a stock G-Jet™ or BSRT stock replacement. Gears may be lightened and axle spacers may be used to aid with gear mesh.
14) Any scale appearing vacuum-formed body may be used. Bodies shall be painted. Body class (i.e. LeMans, Can-Am, Trans-Am, NASCAR, etc.) will be specified for each event.
15) G-Jet™ races shall be run at 12.0 volts +/- .25 volts.

SUPER STOCK Car Class Rules

1) Cars eligible to compete in this class include the BSRT G3-R™ and BSRT G3™ car.
2) The motor and traction magnets shall be stock and made of a ceramic magnet material.
3) Armatures shall be stock or BSRT stock replacement. All arms must be narrow gap design, and be a minimum of 6.1 ohms.
4) All electrical system parts shall be stock or BSRT stock replacement. BSRT Helper Springs may be used.
5) The chassis shall be stock and cannot be modified in any way except for the following:
    a) Add body mounts.
    b) The chassis may be modified to retain the rear axle.
6) The axles, gears, gear spacer (optional), guide pin, motor bushings, tires, and wheels shall be stock or BSRT stock replacement (no ball bearings allowed). Gears may be lightened and axle spacers may be used to aid with gear mesh.
7) Vacuum-formed bodies may be used provided they meet all General Rules.
8) Glues/adhesives are not allowed on the chassis and bulkheads except to attach the body mounting system and retain the guide pin.

Polymer Car Class Rules

1) Cars eligible to compete in this class include the BSRT G3-R™ and BSRT G3™ car.
2) The motor and traction magnets shall be any BSRT G3-R™ or G3™ polymer magnets. Non-magnetic material may be used to restrict the movement of the motor and traction magnets.
3) Any BSRT armature may be used. Motor bushings may be stock BSRT or BSRT stock replacement. BSRT ball bearings are allowed.
4) All electrical system parts shall be stock BSRT or BSRT stock replacement. Shunts are allowed. BSRT Helper Springs may be used.
5) The chassis shall be stock BSRT G3-R™ or G3™ and cannot be modified in any way except for the following:
    a) Add body mounts.
    b) The pickup tabs on the chassis may be shortened, reinforced and/or replaced.
    c) The chassis may be modified to retain the rear axle.
    d) The bottom surface of the chassis and timing bracket may be sanded flat.
6) The front and rear axles, wheels, and tires shall be any stock BSRT or BSRT stock replacement combination. Ball bearings are not allowed on the axles.
7) Gears, gear spacer (optional), and guide pin may be any stock BSRT or BSRT stock replacement. Gears may be lightened and axle spacers may be used to aid with gear mesh.
8) Vacuum-formed bodies may be used provided they meet all General Rules.
9) Glues/adhesives are not allowed on the chassis and bulkheads except to attach the body mounting system and retain the guide pin.

Definitions

General Rules - Rules which are applicable to all car classes.
Stock - Any part or condition that normally comes with a car.
Stock Replacement - A readily available part similar to the part being replaced.
Readily Available - Mass produced for H.O. Slot car racing and commercially available through Scale Auto.

Concours d'Elegance

Concours d’Elegance Competition will be run as a separate event with all entries being submitted on Friday night. These cars will be impounded for display and judging purposes for the duration of the weekend and will be returned to the entrants late Sunday afternoon. Therefore do not plan on using your Concours entry or parts from it for your actual G-Jet race car. Your Concours entry must use a BSRT G-Jet as the race chassis and will need to complete at least a lap on the track. Any wheels and tires may be used on your G-Jet provided they are a minimum of .350 in the front and .450 in the rear. The body choice is up to you but must be a Vintage Can-Am from the years 1966 through 1974. There are a variety of bodies available from Scale Auto, Thunderbolt, and Rothwell Body Shells that fit this Can-Am era. If you’re not sure about a particular body you’d like to prepare, please check with us before starting on your Concours effort.

Cars will be judged according to the points system outlined below. Four judges will be selected to award points to all Concours entrants and the final Concours positions and winner will be determined once all the points are tallied. Plaques will be awarded to the top three finishers in the Concours d'Elegance Competition.

Points System used for Concours d Elegance Judging

A) INTERIOR DETAIL (0-10 points) - General appearance, neatness, realism of driver, rollcage, rollbar, dashboard, along with any other interior details will be considered.
B) EXTERIOR DETAIL (0-10 points) - Difficulty factor, lettering, numbering, decals, exhaust system, mirrors, and any other exterior detail will be considered.
C) PAINT and FINISH (0-10 points) - Quality of the paint, neatness of application, difficulty of paint scheme, crispness and evenness of paint will be considered.
D) CHASSIS (0-5 points) - General appearance of visible work done and neatness will be considered.
E) OVERALL IMPRESSION (0-15 points) - General appearance, realism, and the general aesthetic quality of the car will be considered.

Best Appearing Race Car

The G3 National Championships Best Appearing Race Car Competition will be run in conjunction with the G-Jet race. Your Best Appearing Race Car entry must use a BSRT GJet as the race chassis and will be the car that you use to compete in the G-Jet race. All of the General Racing Rules and the G-Jet Car Class Rules will apply to this car. The body choice is up to you but must be a Vintage Can-Am from the years 1966 through 1973. Check below for the list of eligible bodies. As you can see from the points system below this competition is focused on your G-Jet race car and mainly the paint job and over all impression the car makes on the judges. We want you to be able to create a realistic replica of an actual race car and still be able to be competitive in the G-Jet races. Note that bodies in this class are all open cockpit and your race car will need to have a driver in the cockpit. These cars will be impounded for tech and judging and then you will get them back when racing begins. There are a variety of bodies available from Scale Auto, Thunderbolt, and Rothwell Body Shells that fit this Can-Am era. If you’re not sure about a particular body you’d like to prepare, please check with us before starting on your Best Appearing Race Car.

Cars will be judged according to the points system outlined below. Four judges will be selected to award points to all Best Appearing Race Car entrants and the final Best Appearing Race Car positions and winner will be determined once all the points are tallied. Two plaques will be awarded, one for the first place Amateur car and one for the first place Pro car.

Points System used for Best Appearing Race Car Judging

A) EXTERIOR DETAIL (0-15 points) - Difficulty factor, lettering, numbering, decals, exhaust system, mirrors, and any other exterior detail will be considered.
B) PAINT and FINISH (0-15 points) - Quality of the paint, neatness of application, difficulty of paint scheme, crispness and evenness of paint will be considered.
C) OVERALL IMPRESSION (0-20 points) - General appearance, realism, and the general aesthetic quality of the car will be considered.

G-Jet Class Best Appearing and Concours*

Listed below are the vacuum-formed clear plastic bodies eligible to compete at this year’s G3 National Championships. The featured body class for the 2008 G3 National Championships is Vintage Can-Am including the years 1966 through 1973. You may pick your body of choice which is required to compete in the following car/driver classes:
- G-Jet Pro Driving Class and Best Appearing Race Car Competition
- G-Jet Amateur Driving Class and Best Appearing Race Car Competition
- Concours d’Elegance Competition* (separate from Best Appearing Race Car Competition)
- Note that you may use any body style for the Super Stock and Polymer Races

The following bodies are listed by manufacturer, part number (when available), description, and main year the body raced in the Can-Am Series. All bodies are commercially available through Scale Auto in Sammamish, Washington.

Scale Auto Vintage Can-Am Bodies
831 - Lola T-260 (1971)
834 - Autocoast Ti-22 (1970)
836 - McLaren M8E (1969)
837 - Porsche 917-10 (1972)
841 - U.O.P. Shadow DN2 (1972)

Rothwell Vintage Can-Am Bodies
205 - Chaparral 2E (1966)
308 - Porsche 917-30 (1973)
310 - Chaparral 2J (1970)
323 - Porsche 917PA (1971)

Thunderbolt Vintage Can-Am Bodies
TB018 - Ferrari 612 (1970)

Scale Auto Off-line Vintage Can-Am Bodies
- - McLaren M20 (1972)
- - Autocoast Ti-22 (1970)
- - McLaren M12 (1969)
- - BRM P154 (1972)
- - Ferrari 612 (1970)

The Scale Auto Off-line bodies listed above are only available to racers who have registered to compete at the 2008 G3 Championships.

* - For the Concours competition, your body may be any Can-Am body from the years 1966 through 1974. It may be lexan, resin, or other material but it must be mounted on a G-Jet™ chassis and be able to complete at least one lap.

The Mission of the G3 Championships

The mission of the G3 Championships is to promote good, clean, and competitive fun in the hobby/sport of H.O. scale slot racing. We want racers to know that they can come to the G3 Championships and "Experience the Best Competition in HO Racing!"

Click here to download a PDF copy of the G3 Championship rules.

• E-mail - G3Racing@G3Championships.com



• Phone - (425) 483-9656 (Please remember we're in the Pacific Time Zone)