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Old 01-17-2006, 11:34 AM
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It seemed like a good idea????
 

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Pine Wood derby 57 Chev cobalt blue

I know, but where else would you go to ask the question how to make it go faster?? Yes its custom!!! its a 57 Chev painted with cobalt blue with a touch of pearl. My son and I have the pinewood derby this weekend, just looking for some tips. We have polished the axles, smoothed the wheels, and planning on useing graphite. Any other useful tips would be greatly appreciated. I know there are a few of you who still have the Derby Car hangin around Thanks BadA$$37
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Old 01-17-2006, 11:45 AM
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If you do a Google search, there is a ton of stuff on the web.
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Old 01-17-2006, 12:31 PM
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I am an Assistant Scoutmaster for Pack 176. We did a Pinwood Derby last year before Katrina (BK). For fun, and to show the kids what is possible I made a simple '32 Roadster for the race. Polished the axels, polished the wheels, centered my wieghts, made sure everything was as smooth as possible. Outside of strapping a rocket motor to the back, there isn't much more to be done. Make sure that the wheels track as straight as possible and are aligned. If the car begin to bounce off the guides on the track, that will slow you down a lot. My car never lost out of a dozen and a half races. Of course this was all for fun racing after the kids did the official racing.

Chris

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Old 01-17-2006, 12:41 PM
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It seemed like a good idea????
 

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Very nice I like it. I will try and post pics when were done. We had practice run this past weekend guy was running 2.03sec when everyone else was running 2.12 - 2.28. I I talked to him and he had the same things done we do, its what he didnt tell me that Im lookin for.
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Old 01-17-2006, 12:48 PM
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That's what I miss most about being out of scouts...

Anyways, I have made sure I can get as much weight as far back as possible. That means the weight has further to drop (vertical distance) before it hits the flat of the track. One thing I have always used but is probably illegal by most sanctioning bodies is Tri Flow spray lubricant. It is amazingly slippery. I have heard of coating the axles with wax on top of making them perfectly smooth and true.
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Old 01-17-2006, 03:21 PM
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There are several things you can do. Set the CG of the car about 1" in front of the rear wheels. As mentioned it give the car an extra shove when the track flattens out. When polishing the wheels, round them off a bit to give the smallest contact patch. Set one of the front wheels a tiny bit higher than the other one so there are only three wheels supporting the weight. Smooth the inside of the wheels so they don't snag on the guide. Slightly chamfer the axle hole so it doesn't drag on the nail head as much.
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Old 01-17-2006, 05:54 PM
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It seemed like a good idea????
 

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Thanks again for all the input, Heading down to the basement now to apply the ideas. BadA$$37
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