Focus Fanatics - View Single Post - How To figure the compression ratio of your Zetec
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Old 04-12-2013, 09:14 PM   #22
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Originally Posted by 1turbofocus View Post
Im curious if that math would work the same once pistons , deck height , valve job is done etc , I would think you would need to know CC`s of head , CC`s of deck height , CC`s of pistons

Absolutely and you need to know the CC's of the head gasket too.
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