Quote: I know this doesn't answer your question, but raising compression has deminishing returns. You will get more of a HP return going from 8:1 to 9:1 than from 12:1 to 13:1, etc. I would say the range you are looking at would still have good returns HP wise. To come up with an actual # would be a guess on anyones part IMO.
this is something I have heard before which is part of why I was asking the question to begin with...wasn't sure how far up on that scale I was with the compression im at right before the increase of cr has diminishing returns
