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View Full Version : compression ratios/octane/base gaskets?



400thacker
01-11-2011, 03:15 PM
I know on my 400ex I ran without a base gastket and had no oil leaks and slightly higher compression.

can I do this on my 250X? I was thinking that a 11:1 weisco and no base gasket should still allow my to run pump 93 with no spark knock goin on.
I think the gaskets are .020's thick so it would be equal to shaving the head .020's and running a 11:1 piston. how much will .020 gain in actual compression ratio?

400thacker
01-13-2011, 04:26 AM
i know someone knows something...