PACK 197 Pinewood Derby Rules and Tips

SPECIFICATIONS

Body

The body in the Official BSA Pinewood Derby Kit must be used. Bodies of other materials will be grounds for disqualification. The body may be shaped, hollowed out, or built up from the original block, as long as it meets all other specifications. Any additions to the original body, i.e., steering wheels, drivers, decals, paint, weights, etc., must be firmly attached. Do not add anything to the bottom of the body—otherwise the car will not ride above the track.

Width

The car width at the wheels may not be modified. At other points, the width may not exceed 2 ¾”.

Length

Overall length may not exceed 7”. Wheelbase: The wheelbase may not be modified. Wheels: Wheels and axles must be as furnished in the official kit. NO washers, bushings, bearings, or springs are allowed. Wheels may be sanded to remove the flashing only. No reductions in width or diameter, or changes in shape are allowed.

Weight

The weight of the race-ready car must not exceed five (5) ounces as measured on the official scales.

Lubrication

Only dry powdered graphite can be used on wheels and axles. Do not use liquid graphite or oil, or the car will be disqualified.

Other

Cars must free-wheel with no stored energy or movable weights. There is no designated front or back to the supplied body— you may choose which end to make the front. Last year’s cars may not be used.

INSPECTION

Cars will be inspected during registration for compliance to the specifications described above. If a car does not comply, the Cub Scout and his parent will be allowed to modify the car to make it compliant, up until the end of the registration period. Once a car has been inspected and approved, it will be impounded. After impounding, repairs will be limited to replacement of axles/wheels that are broken/lost during the race. Only race officials may make repairs after inspection.

TIPS

Weight and lubrication probably do more to increase the speed of the car than anything else. Get your car as close to 5 ounces as possible (e.g., using small weights or coins). Apply dry graphite to the wheels and axles before the race. If you are interested in other design ideas or speed tips, visit a bookstore or craft store or try the Internet. Above all else, let your son design his car and participate as much as possible in its construction. Trace the block onto a piece of paper and try different designs with a pencil before cutting it out. Even Tiger Cubs can help with sanding, painting, and lubrication.

Links

Use following links for additional tips:

NOTE

Siblings may also build cars—you can pick up a kit at the Scout Store in Winchester or Woburn. We will use siblings’ cars as fillers in races where needed, and we will have an unofficial siblings’ race at some point during our Pinewood Derby event. Best of luck!