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Who wants to play the guess my compression ratio game?

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Old 10-19-2003, 09:43 PM
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Default Who wants to play the guess my compression ratio game?

Im probably gonna go with Patriot stage2 5.3's, and my pistons are definitely gonna be Diamond 3.905" with -2cc "valve notches" or whatever ya call that
can anyone give me an estimate on what my comp. ratio would be?
Old 10-20-2003, 02:57 PM
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Default Re: Who wants to play the guess my compression ratio game?

What is the finished chamber size? If it's somewhere in the neighborhood of 61cc, your gonna end up with something around 10.8-11.0:1 c/r.

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Old 10-20-2003, 03:10 PM
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Default Re: Who wants to play the guess my compression ratio game?

Your compression will be 10.6 .
Old 10-21-2003, 02:11 AM
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Default Re: Who wants to play the guess my compression ratio game?

thanks, sounds good to me
Old 10-21-2003, 08:34 AM
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Default Re: Who wants to play the guess my compression ratio game?

I got 59cc chambers and the heads were milled .055
Supposedly Im 11-4 to 11-6 range. I also have 3.905 with -2cc valve reliefs




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