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compression ratio for pump gas

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Old 04-27-2011, 10:14 AM
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Default compression ratio for pump gas

Ok, so if my math is right on this=



4.030 bore


4.000 stroke


58 cc chamber


6 cc valve relief


Would give me 12.49:1 static compression



But with my cams intake closing at 85 degrees abdc my dynamic compression would sit at 8.22:1......

Camshaft is a comp 305 255/263 .624/.624 115lsa


This would be the perfect compression ratio for 93 octane and the most power if I am correct.



Any thoughts?
Old 04-27-2011, 06:48 PM
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