Tire truing

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Old 10-21-2006, 06:44 PM
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Default Tire truing

I just cut down a set of foams without a truer. Is it a bad idea to repeat in the future? I just attatched the wheels to a drill and ran it on a sheet of sandpaper.
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Old 10-21-2006, 06:46 PM
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how much did you cut down??? and how can you make sure there perfectly round???? I guess in a pinch anything will do but being out of round will kill ya whole day.....
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Old 10-21-2006, 06:50 PM
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LOL Redneck truing
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Old 10-21-2006, 06:51 PM
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I think it worked pretty well. I cut it from 66 or 65 to 63mm. I don't get what you mean by how I can be sure the tires are perfectly round. They should be round because the tire is spinning on the drill and I put the tire against the sandpaper.
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Old 10-21-2006, 07:35 PM
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Originally Posted by MK_Arbiter
I think it worked pretty well. I cut it from 66 or 65 to 63mm. I don't get what you mean by how I can be sure the tires are perfectly round. They should be round because the tire is spinning on the drill and I put the tire against the sandpaper.
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Old 10-21-2006, 07:58 PM
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If you pushed harder with the sandpaper in one spot than another it could create a flat spot. In offroad we just use a pair of scissors or a dremel to trim the foam, but I guess offroad isn't nearly as precise as onroad.
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Old 10-21-2006, 08:02 PM
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Had already thought of that. I had the sandpaper sheet taped to a piece of flat wood.
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Old 10-21-2006, 08:19 PM
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I used to use my drill press to true tires. It actually worked quite well. Just fixed a sanding drum to the table and used the up and down motion of the arbor to keep it true.
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Old 10-21-2006, 08:37 PM
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Originally Posted by BSchorr
LOL Redneck truing
Haha...
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Old 10-21-2006, 09:22 PM
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Originally Posted by duckman996
Haha...
Just duckey.lol
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Old 10-21-2006, 09:45 PM
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I used to do the same method when I was racing 1/8 onroad. Drill press plus a vice that had y and x axis movement (I think that's what it's call) with sandpaper glue on a 1/2" block of wood.
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Old 10-21-2006, 10:45 PM
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What the guy meant by round was if the axis of rotation of the drill is not perfectly paralell to the plane of the sandpaper you could end up with a cone shaped tire < . which is counterproductive as one of the purposes of truing tires is to remove any "coning" Although if you are running foams as big as 63 mm I suppose what little bit of coning you induced wouldn't matter to you.
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Old 10-22-2006, 05:41 AM
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I'm not even close to serious racing yet. So... yea. I think it gets rid of coning pretty well. When I do get into serious racing, I'm gonna get a truer.
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Old 10-23-2006, 11:15 AM
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so you are positive you had the drill completely parallel to the sand paper?

Don't post a thread on why your car has no traction around corners.

local shops, tracks true tires for like 5 bucks..
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Old 10-23-2006, 12:55 PM
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As another person said. A few small imperfections wouldnt matter if my tires are like 63mm.
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