Dome vs Flat top..
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IF you mill the heads you will compromise your PV clearance. If you take it out of the pistons and the if you need the exster point of CR then u can take it out of the heads. If you already took a .030 -.040 of the heads and you need more but your PV is to close you have screwed your self.
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Any time you add a peak to a combustion chamber you are going to add a hotspot. The Ideal condition would be a totally flat piston with a small combustion chamber; in real life conditions that is hard to do. I would compromise with the smallest cc chamber I could get then calculate what piston cc I would need to get the desired compression ratio.
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Originally Posted by Phil99vette
If I get dome pistons they are going to have reliefs for the valves. I guess I am more worried about flame speed and if a dome piston will hurt performance due to a slower flame speed.
Phil
Phil
I'd talk with someone that has some experience with milling the AFR 205's.
What bore are you thinking?