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toon1 |
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Senior Member ![]() ![]() ![]() Group: Members Posts: 1,849 Joined: 29-October 05 From: tracy,ca Member No.: 5,022 ![]() |
I was just reading a thread where Jake stated he liked royal purple oil. Has anyone been using it?
What is everyones preferances? |
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Dave_Darling |
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914 Idiot ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California ![]() ![]() |
The base shim is only to restore the compression ratio to stock. If you want a higher compression ratio, you can omit installing the shim. Just make sure your deck height doesn't get too small when you do this (you want about 0.040" I believe), and that your compression winds up in the range that you want. I am told (but have not verified) that removing the stock head gasket results in "about" a 0.5 point increase in the compression ratio. But it depends on a whole lot of factors, and small changes in some of those factors can have unexpectedly large effects on the compression ratio, so you really want to measure and calculate the actual ratio you are getting. --DD |
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