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by chris henderson » Sun Oct 14, 2007 8:14 am
I have a water cooled K&B outboard 7.5cc that I want to run on 65% nitro. How do I determine the correct compression ratio for this engine / fuel combo? Do I adjust shims untill I get the correct psi with a compression gauge, or is there a specific known head clearance I need to set? Can somebody please help? Thanks, Chris
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chris henderson
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- Posts: 1
- Joined: Sun Oct 14, 2007 8:03 am
- Location: cleveland, ohio
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