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shimming a OS vz-b(p)

shimming a OS vz-b(p)

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Old 05-23-2005, 02:41 PM
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Default shimming a OS vz-b(p)

Anybody know what to shim the head on a os vz-b (p) for 30% fuel and also 20% fuel

thanks
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Old 05-25-2005, 02:37 PM
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If your engine is stock then leave it as is. It's already set up for 30%.
No reason to run 20%.
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Old 05-26-2005, 05:51 PM
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I thought I read somewhere that you should add a shim when running 30% fuel.
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Old 05-26-2005, 11:57 PM
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I would ask here
http://www.rc-racing.com/cgi-bin/bac...howforgotten=2

I beleive you add one shim for 30%

I run 20% with the stock shim and the thing is a monster.
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Old 05-27-2005, 07:19 PM
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thanks for the info
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Old 06-01-2005, 05:41 PM
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protouring,

have you found any info on what to shim the motor at i have been looking on sgrid but cant find anything if you find the info will you please post it i would like to also know thank you
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Old 06-04-2005, 09:48 PM
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talked to someone from O.S. and they said to add a shim for 30%
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