compression vs. cylinder pressure

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Mar 17, 2004 | 05:00 PM

84zeddd

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Joined: Apr 2001

Posts: 224

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From: Missisauga ON

compression vs. cylinder pressure

Can anyone give me a rough idea what 185psi on a compression
test might translate to in a compression ratio.(it only has a mild
cam in it)

Mar 17, 2004 | 06:08 PM

RB83L69

Supreme Member

Joined: Jul 1999

Posts: 18,457

Likes: 16

From: Loveland, OH, US

Car: 4

Engine: 6

Transmission: 5

It doesn't. No way to tell.

Mar 17, 2004 | 08:38 PM

AJ_92RS

Supreme Member

Joined: Apr 2001

Posts: 4,969

Likes: 0

From: USA

Car: yy wife, crazy.

Engine: 350, Vortecs, 650DP

Transmission: TH-350

Axle/Gears: 8.5", 3.42

I'm nowhere near as good as RB, so I can't tell you either.

What I can tell you is 185 is a good cylinder pressure to run on the street with pump gas.

The target range, from what I've read and heard is 180-190 psi cranking pressure.

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