2 pit stops per main!

Formula one-
USVTA F1 Rules-
http://www.usvintagetransam.com/rules/USVTAF1rules6-25-2021.pdf

Motor: ROAR 25.5 spec motor

Tires-
Any commercially made F1 specific, semi-pneumatic rubber tire is allowed. No foam, no

solid tires. Wheels must still be F1 specific, spoked wheels. No additional aerodynamic
dish inserts may be used other than the ones supplied with the body kit. No “wheel
dots”. Any tire inserts can be used.

1 pit stops per main!

200 mm F1/ “F103”-
Bodies: Bodies modelled after F1 cars from 2000 season and previous that are a
realistic representation of an original FIA Formula 1 car may be raced in this class.

Cars will be painted and detailed to resemble a Formula 1 car. Drivers may have to
show that the paint scheme, layout and detailing have appeared on a full-size Formula 1
car if requested. Random color schemes with no detailing are discouraged.
Chassis:
200 mm wide F1 specific chassis.
Legal chassis:
All Tamiya F101/F102/F103
Tamiya F104W/F104WGP
Kyosho Impress
Cross Fireforce
Other chassis will be considered on a case by case basis. Commercial aftermarket
chassis parts and accessories are allowed.
Chassis based on other classes (1/10 235 mm or 12th Scale) are not allowed.
All cars must conform to appearance, radio, general, battery and motor rules and
comply with the ‘spirit’ of 1/10th scale Formula 1 cars. All decisions of the track/race
director organizing a race concerning appearance and 'spirit' are final.
All F1 car kits must comply with the dimension rules and have rear axle hex wheel
fitment.
F1 car wings must be to scale and be commercially available; otherwise they are
free - i.e. you can mix different kit wings. Turning vanes, third wings, diffusers,
etc. are free but must be to scale.
Front Wing
Any mass-produced front wing may be used. It must be the original hard plastic front
Tamiya-type wing; no polycarbonate/Lexan wings allowed.
Rear Wing
Any Tamiya-style, hard plastic rear wing may be used.
The rear wing cannot be higher than the top of the air box.
Body must be completely intact as it was intended by the manufacturer. It cannot be
‘extra’ trimmed along the bottom or cut in a way to be lowered on the chassis. The air
intakes may be cut out (in the airbox and side pods) but not bigger than the original
scribe marks on the body.

A driver’s helmet must be used.
Rear Diffuser
Diffusers are allowed but cannot be higher than the rear axle or protrude past the side
dams of the rear wings’ trailing edge.

Grill and air vents may be cut to the original size and position only.
Chassis modifications are allowed, providing the car still meets general equirements.
Rear wheel drive only is allowed.
Front independent suspension is allowed. Suspension pick up points must be mounted
inside the body.
All radio, electronics & lap counting equipment (excluding antenna) must be housed
inside the bodyshell.
Max. wheel size: 36 mm diameter (Std. Tamiya F103)- No 1/10 pan or Indy car sized
wheels
Tires: open foam tire
Battery : 2s lipo - 8.40 V limit at tech
Motor: Brushed Mabuchi 540 handout
Weight: none

1 pit stop per main!

USGT-
USVTA USGT Rules -

http://www.usvintagetransam.com/rules/USGTClassRules5-9-2021.pdf

1 pit stop per main!

GT12-
Bodies: 1/12th GT Style bodies, no LMP style bodies
Minimum body weight is 50G. If underweight,extra weight must be added to the roof.
body must be cut on cut lines, no slamming of the bodies.
Tires: SJT Rubber Tires only.
Battery: 1s lipo - 4.2 V limit at tech
Motor: USGT Spec motor
Gearing: Open
Weight: 750g