PINEWOOD DERBY RULES


LENGTH, WIDTH , AND CLEARANCE
  1. The maximum overall width including wheels and axles shall not exceed 2 ¾ inches.
  2. The minimum width between the wheels shall be 1 ¾ inches so the car will clear the center guide strip on the track.
  3. The minimum clearance between the bottom of the car and the track surface shall be 3/8 inch so the car will clear the center guide strip on the track.
  4. The maximum overall length shall not exceed 7 inches.
  5. The wheelbase (distance between the front and rear axles) may not be changed from the kit body distance of 4 ¾ inches (some kits may be off between 1/8 inch to ¼ inch). The pre-cut slots provided on the official BSA kit must be used!
CAR BODY, WEIGHT AND APPEARANCE
  1. Body wood shall be as provided in the official BSA kit.
  2. The car must have been built during the current year (the school year in which the Derby is held).
  3. The maximum weight of the car shall not exceed 5.0 ounces. The reading of the official scale will be final.
  4. No liquids or loose materials of any kind are permitted in or on the car. The car may be hollowed out and built up to the maximum weight by the addition of wood or metal only, provided any additional materials is securely built into the body or firmly affixed to it.
  5. Details such as steering wheel, driver, decals, spoiler, painting and interior details are permissible as long as these details do not exceed the maximum length, width, or weight specifications.
  6. Cars with wet paint will not be accepted.
  7. The front end of the car is to be solid, (meaning no notches, grooves, or slots) that would give the car an unfair advantage at the start.
LUBRICATION
  1. Only graphite or powdered Teflon "white lube" will be allowed for lubricating the wheels. You MAY NOT use any other lubricant, especially oil or silicone sprays. Liquids and sprays react with the paint and plastic wheels and make them tacky which will slow the car considerably.
  2. There will be NO lubrication after the car has passed inspection and is put in the "garage" holding area.
WHEELS AND AXLES
  1. Only BSA approved wheels and axles, as provided in the official kit, must be used.
  2. Wheel bearings, washers, bushings and hubcaps are prohibited.
  3. The car shall not ride on any type of springs.
  4. The car must be freewheeling, with no starting devices or other types of propulsion.
  5. Wheels can be sanded to remove surface imperfections, but the treads must be left flat. Beveling, tapering, narrowing, thinning, thin sanding or wafering of the wheels is prohibited.
  6. Axles can be smoothed to remove surface imperfections, but not altered in any way except polishing. The head of the axle (nail) shall not be altered.
  7. All 4 wheels of the car must touch the track surface.
INSPECTION AND REGISTRATION
  1. To compete in any category of the Pinewood Derby, each car must pass Final inspection, (which includes weigh-in).
  2. The inspection committee has the right to disqualify any car that doesn't meet these rules. Any scout or adult may appeal to the Pinewood Chairperson whose decision is final.
  3. If a car does not pass inspection the owner will be informed of the reason. Cars that fail the initial inspection may be modified to bring them within the rules and brought back for re-inspection before final inspection deadline.
  4. No car may be altered in any way after it has passed Inspection and is accepted in the "garage" holding area.