U-Build Lamborghini

U-Build Lamborghini: Tyco 440-X2 Narrow-chassis platform with a Tyco or similar Lamborghini hard body.

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U-Build Lamborghini

Tyco 440-X2 Narrow-chassis platform with a Tyco or comparable Lamborghini hard body.

Class Rules:

Body: Tyco Countach Lamborghini body only. You may lower the body, run rear wing or not, but must have front and rear side windshields. No slammed cockpits (aka heat lamp specials).

Chassis and Bulkheads: Stock Tyco (440 x2) or Mattel narrow pan chassis, any country of origin. Loose bulkheads may be shimmed. No ball bearings. Rail wear is permitted but bulkheads cannot be sanded or otherwise modified. The front axle holes may be reamed to .052”. Peening is allowed.

Armature: Must use stock type armature (6 ohm minimum). May use hot stock 6 ohm arms.

Magnets: Must use stock Tyco motor and traction magnets. Zapping is permitted for motor magnets. Traction magnets may be reverse zapped. Completed car must measure no greater than 18 grams of force on VRP downforce meter.

Electrical: You may use any brand shoes you like. You may use any brand stock format motor brushes and springs (no big foot types).

Gears: Stock gear ratio (7/25) but may use whatever brand plastic gears you prefer as long as ratio is maintained.

Front Wheels: You may use any brand front wheels and axles including independent set-ups. Width maximum 1.312 inches including tires.

Rear Wheels: Rear wheels and axles may be stock or aftermarket. Any material may be used. Width maximum 1.312 inches including tires.

Rear Tires: Rear tires will be slip-on silicone (recommend green compound A super tires or .440 minimum diameter). Any brand silicone slip on rear tires OK. No sponge-silicone tires (dual compound).

Guide Pin: Only one guide pin may be used. Any brand guide pin may be used.

  • If the usability of any part is in question then use the stock OMS component(s).
  • Note that the rail typically measures 0.015 tall around HSRW. SJSW rail height is 0.013.
  • No component on car may measure more than 1.312 wide (wheels, chassis, body, etc.).
  • Races shall be run at 15.0 volts +/- .25 volts.
  • Final interpretation is with the race director.

Additional information

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