Kevin,
I just read your post, and I'll look at my mag, which I think is an "engine masters", and should have another post tomorrow sometime. I'm glad to help out anyone who has a new equation that might pan out. It's kinda cool when you think about it, at the cusp of discovery, finding a new way to do something. I wouldn't use this until a real answer is found, but since I didn't win the lottery this year, and hence, am not going to buy every engine piece I can think of(still dreaming of that moment), I would use little equations to see what piece's might work best for my budget. I say go for it, and the nay-sayers should read rule #6. I hope I'm not pissing anybody off with this, I really do enjoy this site.