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1990 - 1992 Speed Density Compression Ratio

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Old Jan 4, 2009 | 03:17 PM
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88TransAmFreak's Avatar
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Car: 1971 Camaro
1990 - 1992 Speed Density Compression Ratio

I had a quick question, My engine is a stock 82 Corvette engine that is 9.0:1 compression with a 1990 - 1992 TPI Speed Density set up on it.

My custom chip is based on a 1990 - 1992 Camaro 350 TPI automatic baseline. If I'm not mistaken the compression ratio is 9.5:1 on these engines.

Will this have an adverse affect on how my engine runs because of the compression differences?

Thanks!
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Old Jan 4, 2009 | 06:03 PM
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gearhead0384's Avatar
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Car: 1989 Camaro IROC-Z
Engine: L98 350 TPI
Transmission: Built TH-700 R4 (Vilgilante 2800)
Axle/Gears: 9 bolt w/ PBR's
Re: 1990 - 1992 Speed Density Compression Ratio

1990-1992 350 TPI compresstion is 9.7:1.
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Old Jan 4, 2009 | 06:09 PM
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88TransAmFreak's Avatar
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Car: 1971 Camaro
Re: 1990 - 1992 Speed Density Compression Ratio

Originally Posted by gearhead0384
1990-1992 350 TPI compresstion is 9.7:1.
Even so, will that affect the fact that this set-up is on a engine with a 9.0:1 compression ratio?

Thanks!
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