Originally Posted by Master Yodub
Combustion chamber volume has nothing to do with rod/stroke ratio, and I don't think you'd need to lower the compression anyways. High compression is fine with boost as long as you have the fuel/tuning to match.
As for the r/s ratio, the lower it is, the more stress you put on the cylinder walls and rotating assembly, the more friction you put on the piston/cyl. wall, and the easier it is for the motor to let go at high rpm.
if i dont material out my chamer on my GSR, the comp ration would be at 12.1, now 12.1 is not a friend with boost. thats why i to do that for the head.