ok i buy a set of pistons but i'm just woundering if i should go with 8.9.1 or 10.1.1 i plan on running 100+ shot of nitrous which would be the best one to go with .............. thanks dave

 

well if u go 8.9.1 you can add some mad boost later on

 

^^ correct

but if ur never gonna around to going forced induction u might as well get the 10.1:1 and use that spray

 

it says in your sig that you're turboed. If you get the lower compression ratio you can run more boost and maybe make more power anyway, before NO2, so I would go 8.9:1 and some more boost and good ol' nitrous juice and fly away.

 

Do the lower compression and turn up your boost. Don't even both with NOS right away until you get the higher boost tuned up right. You'll be surprised at the different between 8 psi and 15.