im bout to start my build. im goin to get forged internals, im building a lsv turbo. my main question is if i buy pistons that r 10.5:1 c/r for a ls motor. whats the c/r goin to be on a lsv? with a b16 head. higher or lower?

thanks

 

im running 9:1 compression on my 84 mm ls/vtec

 

if you buy 10.5:1 for an ls motor, the cr will be higher with a b16 head

 

so if i get 9.5 i should be koo, right? im lookin to some pretty high numbers. im gettin a nice turbo too.

 

I would probably get 8.5-9 since it appears the head will raise it some. There are people out there with high compression turbo setups but it just raises the chances that you will run into detonation. Make sure you tuner is comfortable doing this before you buy the parts.

More boost is the answer for big power numbers not a higher compression ratio.