what a good compression for daily driver for built gsr?

 

compression ratio is?

Engine—What is a healthy engine???
Compression test results should be as follows:

* 8:1-8.5:1 compression: 150-170 psi per cylinder
* 8.5:1~9.5:1 compression: 170-210 psi per cylinder
* 9.5:1~11:1 compression: 210-275 psi per cylinder
* 11:1+ compression: 250+ per cylinder (highly depends on cams being used)

-- from evans-tuning.com

 

i wanted tio what would be a good CR for my future built gsr motor DAILY driver, that i planning

 

around high 11's i would say.
you could go a lil. higher but who needs it..

 

i plan on daily driving my 11.5:1 LS/VTEC so go for it. i have a friend who daily drives his 11:1 GSR no problems

 

ok.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slow *** ef &raquo;</TD></TR><TR><TD CLASS="quote">compression ratio is?

Engine—What is a healthy engine???
Compression test results should be as follows:

* 8:1-8.5:1 compression: 150-170 psi per cylinder
* 8.5:1~9.5:1 compression: 170-210 psi per cylinder
* 9.5:1~11:1 compression: 210-275 psi per cylinder
* 11:1+ compression: 250+ per cylinder (highly depends on cams being used)

-- from evans-tuning.com</TD></TR></TABLE>

if this is right then my LS has poor compression, its supposed to be 9.2-1 but when i tested it, it was 160psi across the board

 

Depends entirely on the gauge and the cams. As long as it's uniform across all cylinders, you're ok. And leakdown test &gt; compression test any day.