Eligibility

1. 1. Registered as a Cub Scout in Pack 361

   2. Open to all ranks

   3. The car must be built for the current Pinewood Derby Racing Season. NO REPEATS or REPAINTS. 

   4. A car purchased from a third party is not allowed. 

   5. The car may not be sent to third party facilities for tuning or other performance enhancements.

   6. Parents must supervise scouts and may help with construction of the car.

Car Specifications

1. 1. The main body structure(chassis) must be made of wood. The car design may be enhanced by the addition of other stable materials such as plastic or metal. Any additions must be firmly attached, non-moving, and meet car size specifications. 

   2. The car must meet the following specifications: 

      1. Width: not to exceed 2 ¾ inches 

      2. Length: not to exceed 7 inches

      3. Height: not to exceed 5 inches

      4. Weight: not to exceed 5.0 ounces on a scale accurate to 1/10 ounce. For scales that have more than a single-digit beyond the decimal point, the maximum weight is 5.0500 

      5. Clearance: The wheels are the only part of the car allowed to touch the track.  The car body must not touch the track.

      6. Width between wheels: at least 1 ¾”

      7. When placed in the starting position, no part of the car may protrude beyond the starting pin. 

Wheels and Axles

1. 1. At least 4 wheels must be attached to the sides of the car body. Each wheel must be attached to the car’s wood chassis with a legal axle.  A legal axle is the one that came with the kit or purchased from the Scout Shop.

   2. "Three wheeling" is allowed and encouraged provided all other rules about wheels and axles are followed. A car with only 3 wheels touching the track will almost always beat a car with 4 wheels touching. 
      Note: This rule is being changed to streamline inspections, promote faster cars, and reduce worries if an axle doesn't go in just right. 

   3. Each attached wheel must not be angled (canted) more than 20 degrees from vertical. 

   4. The front most and rear most wheels must be positioned across the body from one another. 

   5. Only official BSA wheels are allowed. 

   6. The wheel diameter must be no less than 1.16 inches. 

   7. The tread surface width must be no less than 7.5 mm. 

   8. The tread surface must be flat and parallel to the wheel bore. Therefore, the following modifications are prohibited: 

      1. Rounding of the tread surface 

      2. Grooving, H cutting, or V cutting the tread surface.

   9. The rules permit many wheel modification so long as you observe the dimension limits and restrictions listed above. Common legal modifications include but are not limited to: 

      1. Truing the tread surface with sandpaper, straight edge, or lathe to correct “out of round” wheels. 

      2. Truing and shaping the inner edge of the tread surface 

      3. Narrowing the tread surface to 7.5mm to get straight edges 

      4. Applying wheel bore treatments such as polish and wax to smooth the bore. 

      5. Tapping the wheel bore 

      6. Truing and re-coning the tip of the inner hub 

      7. Removing the double step from the outer hub 

      8. Balancing the wheel by adding material such as glue or fingernail polish to the inside of the wheel 

      9. Adding a transparent cover to the inside of the wheel to reduce air drag

   10. Metal Axles with a nail head are required with an overall diameter of no less than .084 inches. 

   11. One-piece axles that extend through the width of the car to support both wheels are not allowed.

Lubrication

1. 1. Over application of lubricant, which results in excessive shedding onto the track is not allowed. 

   2. Only graphite powder is allowed as an axle lubricant.

   3. In order to preserve our track surface, liquid lubricants are not be allowed.

Prohibited Items

1. 1. Springs 

   2. Starting devices or propellants 

   3. Electronic or lighting devices that interfere with the race electronics. 

   4. Liquids, wet paint, oil, sticky substance, or powders of any kind (other than axle lubrication)

   5. Glass or excessively fragile parts

   6. Bearings and or bushings 

   7. Hubcaps covering the nail head 

   8. Loose/moving objects on or in the car

   9. Wheels and axles that are NOT provided in kit or available for purchase at the Scout Shop.

Inspection

1. 1. Each car must pass inspection by the Official Inspection Committee before it may compete. The inspectors will disqualify any car not meeting these rules. Any adult or scout may appeal the findings of the Inspectors to the Race Committee Chairperson, whose decision is final. 

   2. Every effort will be made to do the inspection without any altering of the car. 

   3. After a car has passed inspection, only race officials may handle the car. 

   4. After check-in, adjustments are not allowed. Car repairs during the race are not allowed unless authorized by the race officials. 

   5. Once Inspection is PASSED before the race, the car will not be re-inspected after the race.

Good sportsmanship and behavior is expected. Race officials may disqualify anyone not following the rules.