if i put a set of p30 pistons into a b18b block with a b16a head what will my compression be around? the head wont be milled or anything. im building this for my street car so im just trying to get my power than my stock b16a any clue how much faster it will be? its a 99 civic ex currently it went 15.2 im thinkin 14s.

o and one more thing this is gona be a cheap build cause i dont really care so im not spending money on aftermarket pistons or anything other than what i need cause i still need to fund the track crx lol

 

Their is compression calculators all over the place so this thread is pretty pointless but here let me spoon feed you.

It comes out to 11:8:1 i hope you get a tune and run nothing less than 93 on this setup.

http://www.c-speedracing.com/howto/c...c/compcalc.php

^ For future references.

 

already know all about tuning and crap