As some of you may know, we will be having a pine wood derby race at the Awards Banquet. Be low are the rules that the entry's will be judged against. Please let me know if you have any questions.
January, 2018 Supplemental Pine Wood Derby Rules.
1. Each car must be newly built for the race. Cars previously entered in a race cannot be used.
2. Each SCCA member may enter one car.
Following are the inspection points
3.1 The car weight shall not exceed 5.0 ounces. The official race scale shall be considered final.
3.2 The overall length of the car shall not exceed 7 inches.
3.3 The overall width of the car shall not exceed 2 ¾ inches.
3.4 The maximum height of the car cannot exceed 5 inches (Adjust this limit so that the cars will pass under your finish gate).
3.5 The car must have 1 ¾” clearance between the wheels.
3.6 The car must have 3/8” clearance underneath the body.
3.7 The wood provided in the kit must be used. The block may be shaped any way that is desired.
3.8 The wheels supplied with the kit must be used. The wheels may not be cut, drilled, beveled or rounded. You may remove the seam from the wheels.
3.9 The axles supplied with the kit must be used. They may be polished or lubricated.
3.10 Wheel bearings, washers or bushings are prohibited.
3.11 The car must not ride on any type of springs.
3.12 The car must be freewheeling, with no starting devices.
3.13 No loose material of any kind, such as lead shot, may be used.
3.14 All cars must have the Members name on the bottom of the car.
3.15 The car body may have no moving parts.
3.16 Details such as the steering wheel, driver, decals, painting, and interior detail are permissible as long as these details do not exceed the maximum length, width, and weight specifications.
4 The entire car must stage behind the starting pin.
5 Weight(s) and decorative accessories may be added to the car, but will be included as part of the car for all measurements.
6 All weight and accessories must be securely fastened to the car, and fixed in place. Wheels are the only allowable moving part on the car.
7 The car must be powered by gravity alone. Thus, weights and accessories may not actively contribute to the movement of the car.
8 Cars must be powered by gravity only!
9.1 The axles may be mounted on the car as desired as long as all car specifications are met.
Wheels and Axles
10 The wheels and axles supplied with the official kit must be used as follows:
a. The wheels must turn about the axles and support the weight of the car
b. The axles must be directly attached to the wooden car body
c. Washers, sleeves, bushings, bearings, etc. may not be used. Nothing can be placed between the wheel and the axle, and between the wheel and the car body.
11.1 Wheels may be lightly sanded and polished, but must retain the original shape (diameter, width, profile, and geometry).
12.1 Axle flaws may be removed and the axle shaft may be polished. The axle head may be beveled on the inside to reduce contact with the wheel. No other modifications are allowed.
13.1 All four wheels must contact the ground. Raised wheels are not allowed.
14.1 Only dry (graphite) lubricants are permitted. All excess lubrication must be removed before inspection.
Check-in and Inspection
15 All cars must be brought to the official check-in for inspection. Any car arriving after the check-in period will not be allowed to race.
16 Cars must pass the official inspection using the official scale and measurement devices. If a car fails the inspection, it may be corrected and re-inspected
17 After a car passes inspection, it will be impounded. Once impounded the car cannot be modified or lubricated.
18 All decisions by the race check-in officials are final and binding.
19.1 Race officials will place each car at the starting line and retrieve each car at the finish line.
Race Heat Anomalies
20 If a car leaves its lane, and the race officials determine that a fault in the track or starting mechanism caused the incident, the heat will be rerun after the fault is repaired.
21 If a car leaves its lane, and the race officials determine that a fault in the track or starting mechanism did not cause the incident, then:
22.1 If the car does not interfere with any opponent, the car will automatically lose the heat, and the remainder of the cars in the heat will be judged normally.
22.2 If the car interferes with any opponent, the car will automatically lose the heat, and the heat will be rerun with the remaining cars.
23 If no car reaches the finish line, the finishing places will be determined by the distance traveled by each car in its own lane.
24 If a wheel falls off during a race, the car may be repaired by the car owner. The repair must be completed within the longer of (a) five minutes, or (b) the start of the next heat in which the car will run. At the discretion of the race official, additional help may be provided to the owner of the car.
25 If a car part (other than a wheel) falls off during a race, the part cannot be replaced on the car.
26 Any appeals or rule questions must be promptly brought to the attention of the race officials.