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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

whats nomal compression numbers?

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Old 08-15-2010, 10:49 PM
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Default whats nomal compression numbers?
check my engine compression today and all cylinders where all between 175-190 psi. is that ok?
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Old 08-15-2010, 10:53 PM
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Thats pretty normal for a stock motor.
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Old 08-15-2010, 10:57 PM
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alright, because im gettin a complete cam kit from ai and wasnt sure if i should rebuild but the air pressure is good and compression seems good
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Old 08-16-2010, 10:39 PM
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What is a safe number to bump your compression up to to retain the most power without doing any damage?
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Old 08-16-2010, 10:41 PM
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Originally Posted by atlanta15braves
What is a safe number to bump your compression up to to retain the most power without doing any damage?
Depends on a lot of things really.
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Old 08-16-2010, 11:00 PM
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So If I was just to bump up the compression slightly what differences would that make?
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Old 08-16-2010, 11:06 PM
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more compression will result in more power, but it will be very little unless it goes up quite a bit.
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Old 08-17-2010, 10:09 PM
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Dyno results: ONE FULL POINT IN COMPRESSION CHANGE = 3/4% POWER CHANGE - ALL OTHER THINGS REMAINING EQUAL/THE SAME.

Jake
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