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Re: Compression ratio question
I am running iron heads at 10.9:1, with as little squish as I can get away with. I have a cam with a lot of overlap, and it seems to be working. It does not seem to ping on 91, and I think max timing is 34 or 35 at the moment.
As I understand it, one of the the reasons this is working for me, is the 0.015" head gasket I am using - it minimizes squish, which (I think) increases turbulence in the combustion chamber, making it less prone to detonation.
But I'm no professional engine builder....
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