i will turbocharged my 2.4 car using the achieva head, pistons will b forged 9:1 comp ratio, and i was told that if i used the head my comp could go up to 10:5 or 11:1 is this right??? and can i still use it and make something out of it???

I would just use a 2.4 head.

Most people that are running the 2.3 head are NA.





PRND321 Till I DIE
Old Motor: 160whp & 152ft/lbs, 1/4 Mile 15.4 @88.2
M45 + LD9 + 4T40-E, GO GO GO

first off..you realize the 2.3 head doesnt have the same intake or exhaust manifold bolt patterns right ? so you cant put the 2.4 intake or turbo manifolds on the achieva head......2nd, yes, your compression will go up to 10.5 if you use 9:1 pistons.....personally i think thats still fine for reasonable boost....but you still need to consider the bolt patterns

yes i know they have diff bolt paterns but i did some holes to the intake and exhaust manifold to make them macth, and what would be a reasonable boost???? how much boost??? because im planing to use direct port to make it spool faster....