Compression Test Results, update: new comp test results Options

[elvasoshexai]

hm.. this is kinda both engine and FI question... but i think i'll just put it here:

I had a compression test done today just to see how my engine is doing...
1st-150
2nd-150
3rd-140
4th-150

brand new engine would be approx 180 or so psi... but my numbers are still acceptable right?

i think anything above 100 is fine for stock engine and anything above 130 is fine for turbo engine?

my engine has about 100000miles on it...

even though these numbers are acceptable... is it necessary to take a further look into it?

with these numbers would it be safe to go FI?

This post has been edited by elvasoshexai: Sep 26, 2006 - 6:04 PM

[elvasoshexai]

ok i just did the test myself... originally i was planning to do a wet comp test on cyl3...

i let the car warm up.. then drove it around the neighbourhood kinda hard... then parked in my garage... waited about 10min for engine bay to cool down then went to work

i decided to first to a dry myself so i could calculate how much psi it would go up by when i do the wet...

so then i started to do the dry on cyl3... just cranking... didnt step on accelerator... and cranked until needle stopped going up and the # surprised me... then i did a dry on the remaining 3 cylinders... these were the numbers with the dry i did:
1st- 172psi
2nd- 171psi
3rd- 168psi
4th- 172psi

so in the end i didn't bother doing the wet...

not sure y these results are so different than when my mech did it... i'm a bit surprised... because i was holding the guage watching it go up while he cranked the car...

This post has been edited by elvasoshexai: Sep 26, 2006 - 6:48 PM