Thread: compression ratio and horsepower
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Old 12-27-2009, 06:41 PM
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cam67152
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It's usually 2-3% per point in compression between 9-12 but I think it drops down to 1-2 above 13:1 this is assuming your using the same cam. your obviously going to make alot more power if you use a cam that is matched to a higher cr.

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