edub80

iTrader: (2)

ive got some questions that i would like to be answered.....

1. If i get a lq4 or lq9 stock bottom end and put a set of TSP stage 2.5 5.3 heads on it, what would the compression of the motor be... like what would be the LQ4 and LQ9??

2.from my searching i couldnt find this answer....I'm talking N/A build.... in order to make more POWER do you need to have a high compression motor? and i mean does a 11 to 1 compression make more power than say a 10 to 1?? and im talking about the same H/C/I/E on this question

Thanks for the help guys....just trying to learn more about these motors

mark21742

Not sure on exact compression of each motor, but for the difference in compression....
Going up one full point in compression (from 10:1-11:1) you gain an average of 3-4% torque and hp across the entire rpm range

A.R. Shale Targa

iTrader: (2)

Stock lq4 is 9.5; and lq9 is 10.0....so if your new heads were @ 62 cc with
stock mls gaskets you're talkin' probably 10.6 or 11.15....cam accordingly

edub80

iTrader: (2)

ok thanks mark



so i take it a cam can change your CR...i remember reading something like that... thanks for the info