If I understand you guys correctly, is the following what you're suggesting? If not, what needs to be changed, added, moved, or deleted?
(Use additional rules from second section for "spec/controlled" racing)
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RULES FOR OPEN 1/8 GT CLASS
specifications: shaft driven, no belts
specifications: standard gear diffs only
specifications: car length, maximum: 25 inches
specifications: car width, maximum: 13 inches
specifications: wheelbase: minimum 12 inches
specifications: wheelbase: maximum 15 inches
specifications: fuel capacity: 150cc maximum
specifications: weight: minimum weight 3500 grams
specifications: fuel nitro content: open
body: any commercially available GT style body (not Lola style bodies)
body: rear of body can not be completely cut out (needs to specify how much)
body: rear windows can be completely cut out
body: side front windows can be completely cut out.
body: The engine’s cooling head fins can not be exposed from top or sides of body.
body: front winshield cutout - 70mm maximum
body: wings and spoilers: allowed
tires: any commercially available rubber tires (no foam tires)
tires: must fit completely under the car body (no add-on wheel flares)
tires: any tire insert
engine: any .28 or smaller style engine
engine: any carb
engine: intake port size - open
engine: must be commercially available
engine: any exhaust pipe,
engine: any stinger diameter
engine: Offroad style non-adjustable 2, 3, or 4 shoe clutch (no axial clutches)
engine: INS box intake silencer required
Electronics: No electronic stability control allowed
Electronics: No electronic aids (D-Box, etc.)
electric class speed control - use existing ROAR rules
electric class: battery - use existing ROAR rules
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ADDITIONAL SPEC RULES (select as desired)
specifications: only 'kickup' chassis allowed
specifications: only 'flat' chassis allowed
specifications: 1/7 scale also allowed?
specifications: Fuel nitro content maximum _________
specifications: car height, maximum (suspension fully compressed) __________
body: wings built for the body,
body: wings must be attached to body,
body: no buggy style wings
tires: tire width limited to __________
tires: disallowed - liquid traction additives or rubber enhancment chemicals
engine: must be available from mail order shops for under $ __________ w/o tax
engine: maximum engine ports __________.
engine: only stock carb allowed
engine: maximum intake diameter ___________
Track, club, or series can specify any of the following:
fuel
car
tire
engine
battery
motor