Thread: compression ratio how do i work it out???
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Old Nov 24, 2004 | 08:27 PM
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jaypen
Part of the Furniture
 
Joined: May 2003
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From: Sunny Devon
Default compression ratio how do i work it out???
adding forged pistons to my zetec turbo conversion,pistons come with "unfinished crowns" so need them machined to get a compression ratio of 8.1.1.

anyone out there that could help me calculate how i can arrive at this?

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