I've got about 7.5-7:1 compression...

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Sep 9, 2003 | 02:34 PM

wonder1and

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I Sold My Car 2 the Devil

Joined: Oct 2001

Posts: 2,361

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From: Duncanville, Tx

I've got about 7.5-7:1 compression...

What kind of life do I have left on my motor?... that reading came from the rear rotor. Should I lay off the boost or is this normal? I've got about 20k on a rebuild.
thanks,
ryker

Sep 9, 2003 | 11:23 PM

maxcooper

WWFSMD

Joined: Jun 2001

Posts: 5,035

Likes: 4

From: SoCal

I am not sure about the life, but be careful not to confuse compression ratio and compression. The compression ratio is fixed at 9:1 if you have FD rotors. Compression is a measure of pressure and it changes over time.

-Max