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Compression ratio

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Old 10-22-2007, 01:38 PM
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so what would you do if you were me
Old 10-22-2007, 01:40 PM
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everything i try on figureing out my compression ratio it is 10.7 to 1.
Old 10-22-2007, 01:48 PM
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Originally Posted by SSCUSTOM6.0
everything i try on figureing out my compression ratio it is 10.7 to 1.
see i spec'd my new setup to use diamonds as you are with a -22cc dish and it came out to be 9.0 with a gasket of .051 compressed. stock 317s are 72cc so thats what i spec'd it with.

i know luanti spec's my old setup with a -13cc dish and 67cc heads with a compressed thickness of .051 to be 10.6

thats with a smaller head and less cc dish pistons. at the moment i cant type in your numbers to get actual numbers of your cr
Old 10-22-2007, 01:54 PM
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ok if you get a chance please do that if you dont care my head gasket is .040 thickness
Old 10-22-2007, 01:56 PM
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Originally Posted by SSCUSTOM6.0
ok if you get a chance please do that if you dont care my head gasket is .040 thickness
k, give ya an example with a .040 gasket. -13cc dish, lunati pistons, 64cc head came out to be 11.0 roughly... that dish is killing cr
Old 10-22-2007, 02:09 PM
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so i have blew alot of money for nothing everyother person i have asked said this would be a great setup. so basically i need to change my pistons out for different one. http://www.bgsoflex.com/cr.html this place shows me having 9.2 to 1.

Last edited by SSCUSTOM6.0; 10-22-2007 at 02:16 PM.
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