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Compression ration question

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Old 02-05-2014, 10:24 AM
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Default Compression ration question

Anyone know how to calc ?

If you build a supposedly 11:1 compression motor...what would be the loss if you swapped pistons to a 10cc valve relief type?

The header is supposed to be ratio..the "n" just jumped on there by itself..lol !!!!

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Old 02-05-2014, 11:40 AM
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I found this page to be pretty helpful.

https://www.uempistons.com/index.php...19ae426f7e5285
Old 02-05-2014, 11:52 AM
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Originally Posted by .boB
I found this page to be pretty helpful.

https://www.uempistons.com/index.php...19ae426f7e5285
Awesome thanks.

John at TSP answered me with a 10.85 with stock gasket. I want to shave my heads to get up to 11:1 or a little over



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