REAL QUICKIE

Old 07-16-2007, 01:01 PM
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real quick what do you guys run in your 10th scales for 18 or 15 engines 20 or 30%???
thanks
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Old 07-16-2007, 02:38 PM
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Most small block guys run 20%
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Old 07-16-2007, 03:41 PM
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.12 if you want to be legal.
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Old 07-16-2007, 04:18 PM
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well what im trying to ask is can i run 30% in 10thscale cause thats what i run for buggy and truggy ofcourse and it would be easier to just use 30 if there no problems
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Old 07-16-2007, 05:25 PM
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you can run 30% in most all engines, but some may need to be shimmed for 30%, but in 1/10 gas truck running 30% may cause some control issues being 2wd is a handful running 20%....
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Old 07-16-2007, 05:32 PM
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well its the 4wd hotbodies lighting witht the 18 in it i won it at a race
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Old 07-16-2007, 05:36 PM
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i dont think the engine will be shimmed for 30%, but its your engine so i say go for it....1/10 4wd should be ok when it comes to the handling, but now its the engine im worried about...
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Old 07-16-2007, 06:13 PM
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I run 30% in my .12's but I check the shimming first. I think out of 2 novas, 1 cv-r, and a peak engine they were all ok except the cv-r which I added one shim to.
As far as a power difference it doesn't seem to change that much that I noticed. Just have to tune the engine how you want it to run like normal.

If you're worried about the engine just run it once and make sure you tune it nicely. When you are done running it take the head off. If the head button and piston top look like they have been sand blasted a bit then you need another shim. Or you can take a piece of solder and bend an 1/8" L on the end of it. Put it down the glow plug hole so it runs in line with the crankshaft, then rotate the piston one full revolution with the flywheel so the piston pinches the solder. Then pull the solder out and measure it with calipers. Add shims until it's .030" or just a bit under.
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Old 07-16-2007, 07:53 PM
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It should be fine. I run 30 in my .12's. I also ran it in my O.S 18tm
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Old 07-16-2007, 08:59 PM
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cool thanks guys
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