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What is stock compression?

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Old Apr 22, 2001 | 10:10 PM
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Zio's Avatar
Zio
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From: Alsip, IL
What is stock compression?
I am looking at buying a 89 GTA and want to build it up. but i want to know what kind of compression this engine came with from the factory.
Thanks
Tom
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Old Apr 22, 2001 | 10:15 PM
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Mkos1980
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From: Macedonia ,OH
Car: Formula
Engine: 6.0 LSX
Transmission: 4L60E
Axle/Gears: 9 Bolt 3:27
9:3:1
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Old Apr 22, 2001 | 10:23 PM
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From: Alsip, IL
Is this a good foundation for a high performance street car or should i be around 9.5:1 or 10:1?
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Old Apr 22, 2001 | 10:35 PM
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its not bad, they've come lower...
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Old Apr 22, 2001 | 10:53 PM
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From: Fairfax County, Va, USA
In general, more compression will equal more horsepower. For a pump gas engine, I'd look around 9.8-10.2 for maximum horsepower.

Jason
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