The rules I was give to hand out to my parents seem to be very "open for interpretation" and are as follows:
Car Dimension Rules
· The overall length of the car shall not exceed 7 inches.
· The overall width of the car shall not exceed 2 ¾ inches.
· The car must have 1 ¾” clearance between the wheels.
· The car must have 3/8” clearance underneath the body so it does not rub on the track.
Derby Car Weight Rules
· The car shall not exceed 5.0 ounces.
· The official race scale that is used at car check-in shall be considered final.
Car Modifications Not Allowed
· The official pine wood block must be used. The block may be shaped in any way that is desired.
· Official BSA wheels must be used. The wheels may not be cut, drilled, beveled or rounded. You may remove the seams and imperfections from the wheels.
· The axles may be altered, polished and lubricated.
Other Pinewood Derby Race Rules
· Once a car passes inspection and is entered into the race, only race committee members can touch it.
· If the car loses a wheel, or is otherwise damaged, the racer shall have 5 minutes to make repairs.
· Each car must pass inspection by the official inspection committee before it will be allowed to compete.
· The Inspection Committee has the responsibility to disqualify those cars that do not meet these rules.
Parents open class is anything with the only rule being 5 oz limit. Not knocking my pack but I don't see "competitive" people like other packs might have. They are only a few months old and this is their first pinewood derby so I just don't expect the competitive level to be high, at least this year....