what's spec compression?
Thread Starter
Joined: Mar 2002
Posts: 8,737
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From: Windsor, On
what's spec compression?
I just checked the compression in my 90 t2 today. It's BONE stock. NEW motor 2500KM ago (everything new, including the dipstick!).
121psi front, 123psi rear. This is about what I should expect, right?
121psi front, 123psi rear. This is about what I should expect, right?
HAILERS
Joined: May 2001
Posts: 20,563
Likes: 27
From: FORT WORTH, TEXAS,USA
There is a chart that shows the minimun, but no chart showing exact figures, THAT I KNOW OF. 120 PSI sounds real good.
But if someone had a S4 turboii, I wouldn't expect to EVER see that figure. The compression ratio is a lot lower than the 91cars.
Speaking of compression, here's a site I came across that is *interesting*in a way http://www.marx7.org/~dsmith/comp.htm
But if someone had a S4 turboii, I wouldn't expect to EVER see that figure. The compression ratio is a lot lower than the 91cars.
Speaking of compression, here's a site I came across that is *interesting*in a way http://www.marx7.org/~dsmith/comp.htm
Last edited by HAILERS; Feb 26, 2006 at 09:43 PM.
Thread Starter
Joined: Mar 2002
Posts: 8,737
Likes: 20
From: Windsor, On
while I have a fairly good idea of what a good used engine should make (100+psi) - I'm not sure what exactly "spec" ideal, new compression is - so that's why I'm asking.
:P
:P
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