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Post by bsadad on Apr 21, 2009 20:35:39 GMT -6
Can any one tell me what the proper distance between car body and wheel hub setting should be. Axles are not canted and do not have time to experiment with it. And what would be the gain if any by sanding the hub bore from 2000 to 12000 grit paper using micro gloss now.
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 21, 2009 22:24:22 GMT -6
I wouldn't sand the hub bore. Especially with 2000 grit. Micro gloss is good. Just don't turn it too fast and heat things up. Set the hub to body gap at .035 inch. Rub plenty of graphite into the body where the hub rubs. Do you know how to cone your hubs?
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Post by bsadad on Apr 21, 2009 22:42:11 GMT -6
Well I purchased my wheels from Max V they are the 3.3 gram wheels with coned hubs. The reason I ask the question was I took a set of stock wheels matched set of mold#6 and bulit a car for a boy and I used 2000 grit paper on the inside wheel bore and that car run as fast as a set of lathed wheels and grooved axles. I use a 95 thousandth feeler gauge to set the space now just checking if that was to much or not a enough. The car I have bulit so far are running 2.43 to 2.49 on a wood 32 ft track from pin to timer. I just trying to inprove my time to have a chance at district.
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 21, 2009 22:57:09 GMT -6
Can you run a 3 wheel rail rider? Where is your center of mass?
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Post by bsadad on Apr 22, 2009 22:05:54 GMT -6
We ruled against 3 wheeler it is a wood home bulit track the center strip is plexi glass. And my com is about 1 inch trying to get it to 3\4 inch.
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Post by Derby Monkey on Apr 24, 2009 22:30:46 GMT -6
I am guessing that the reason the stock wheels ran as fast as the 3.3's is some reason other than the wheels. All things being equal the 3.3's should definitely be faster.
I agree with khouse... I wouldn't sand the hub bore. Micro-Gloss is very good and you might finish that off with Micro-Finish.
The 1" COG is fine. 3/4" may be better if the track is smooth enough. If the track is that smooth, you should be able to run the rail rider alignment... which I strongly recommend.
I wish you the best of luck!!!
Steve
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Post by Derby Monkey on Apr 26, 2009 19:33:04 GMT -6
Microgloss is terrible. I can make a set of untrued wheels easily outrun lathed microgloss wheels. That's great... Care to share??? Thanks, Steve |
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Apr 26, 2009 21:14:23 GMT -6
Thebeave,
If you have untrue wheels then your running flat tires down the track. I just can't believe that lathed and shaved wheels are slower than untrue wheels. What is the secret? I didn't think that rail riding was the way to go. But my mind was changed. So how does rattling and wobbly wheels run fast? Also what would happen if we used your method on lathed wheels? Would it make them even faster? Sounds like you have some special gravy your using. Share please!
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Post by teamfreeroller on Apr 30, 2009 17:32:54 GMT -6
I wood realy like two know. so please share!
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khouse
Head in the Pine
Posts: 199
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Post by khouse on Jun 11, 2009 14:19:09 GMT -6
I would like to see that car run in a race. Which proxy race will you run it? How about a picture?
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