Originally posted by Watertick
Ahhh i dont know why i just assumed the ITR uses the same cams as b16 :doh:
i read on another post someone saying that around 9:1 is a really good compression ratio for boosting, is that right?
So if a b18 with ls crank and rods has a ratio of 9.8:1 wouldnt i want a thicker head gasket to try to get it down a little more? Is there a disadvantage to this?
Oh yeah, would a 97 gsr have an OBD-II block?
sorry for all the questions......
People used to swear by 8:1 C/R for boost back before there were good standalone units around. Nowadays, I'ts all about tuning. There are those that run over 10:1 C/R with boost, but if you want to have more room for error, it wouldn't hurt to run a thicker headgasket. You shouldn't have problems with a 9.8:1 C/R, but yeah, 9.1:1 would leave more room for tuning mistakes.