Speedster wrote: ↑Sat May 05, 2018 4:25 am
When you say "aftermarket axles" does this mean you can use .092 stainless steel axles, grooved axles, etc ? Are you racing under rules provided by the Girl Scouts or have you been given rules from a Cub Scout Pack? I'm heavily involved with the Program Director for the Girl Scouts of Western Ohio and I'm curious what rule or rules allow you to use aftermarket axles and apparently wheels.
Could you possibly send me a copy of your rules? Thank You.
I made the rules. Yes, you can use any wheel/axle you want, as long as they're nail-type and BSA approved wheels.
I pretty much did a mash-up of different rules you see online from places around the country.
Official Powder Puff Derby Rules
Note: before following any YouTube, online etc advice, make sure the changes are within our rules
Inspection and Weigh-in will only be held Friday April 20, 2018. If your car is not check in Friday night you cannot race on Saturday. Times for Check in to be assigned at a later date. Check in times will be assigned by Division.
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.
• Please note an unmodified car kit assembled straight out of the box is grossly overweight.
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.
Wheels:
• Axle holes may be drilled into the body of the car as long as all other specs are met. • Coning the hubs, truing the inside edge of the wheel, and removing the outer hub step down is allowed.
• Wheel Bore treatment is allowed including polishing, sanding and / or tapping, however wheel bores may not be filled and re-drilled.
• There must be at least four wheels on the car, however it is not required that all four wheels make contact with the track surface – one wheel may be lifted from the track surface
Axles:
• Nail type axles are to be used. You may or may not choose to use those found in the Official Pinewood Derby kit.
Lubrication:
Must be dry at time of race. May not use anything that will drip on to track or judging tables.
Note: Graphite is a traditional Derby choice of lube. There are numerous “Dry” lubes that go on wet that can be used. Krytox is one that is sold at the Scout Store or online. One bottle will oil cars for an entire Troop for years, as only a drop the size of a pin head is needed for each axle.