captainchaos Posted December 23, 2006 Share Posted December 23, 2006 Im having oversized forged pistons 20over they are and the head skimmed is there anything else i would need to do to get compression right on the car eg. thicker head gasket Quote Link to comment Share on other sites More sharing options...
geoffvalenti Posted December 23, 2006 Share Posted December 23, 2006 So what CR do the pistons you're intending to fit claim to give? Just because a piston is .020" oversize, it's not going to be the deciding factor in determining the CR. Its the shape of the crown you want to be looking at. Skimming the head will raise the CR, fitting a thicker head gasket will lower it. Are we talking N/A, TT, Single. It all makes a difference in the final choice of CR Quote Link to comment Share on other sites More sharing options...
captainchaos Posted December 23, 2006 Author Share Posted December 23, 2006 going from twin turbo to single they are cp pistons i am fitting Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted December 23, 2006 Share Posted December 23, 2006 How much they taking off the head? Quote Link to comment Share on other sites More sharing options...
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