highest compression with 93 octane???
05-20-2005, 03:01 PM
#1
Staging Lane
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highest compression with 93 octane??? what is the highest compression possible to run with 93 octane? after tuning of course.
anybody know the increase in hp with going to 12:1 - 12.5:1 compression?
anybody know the increase in hp with going to 12:1 - 12.5:1 compression?
05-20-2005, 03:15 PM
#2
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depends on your cam. static compression is pretty much meaningless. you need to calulate your dynamic compression. People are running 13:1 static compression on pump gas with long-duration cams.
05-20-2005, 06:46 PM
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i run 11.3 to 1 with no problems. you can expect about a 3% increase in power across the board from going up a full point in compresssion. full point as in 10:1 to 11:1. id say the highest compression you want to run on pump gas is about 11.7:1. anything more is really pushing it, and if you have to pull timing because of it, your gonna be losing power not gaining. stay below 11.8 to 1 and you should be ok.
Scott
Scott
