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

Header Increase ???

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Old Jun 15, 2009 | 02:04 AM
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ZachsBlack94Z28's Avatar
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Default Header Increase ???

Just wondering going from a Stock LT1 and putting long tube headers on it what kind of power increase have you gotten and or shaved off your ET ???? Thanks
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Old Jun 15, 2009 | 04:33 AM
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Headers usually result in (on average) around a 15-20HP/15-20TQ increase when mated to a decent-flowing cat-back - more if you have additional supporting modifications (CAI, 1.6 rockers, valvetrain work, etc.). Those numbers in a perfect world would result in anywhere from .1 to .3 ET reduction.
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Old Jun 15, 2009 | 01:28 PM
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Expect about a 22 horsepower increase and a track time of 13.7-13.9, don't forget to get it tunes and keep you spark plug wires away from the headers.
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Old Jun 15, 2009 | 01:43 PM
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Originally Posted by RamAir95TA
Headers usually result in (on average) around a 15-20HP/15-20TQ increase when mated to a decent-flowing cat-back - more if you have additional supporting modifications (CAI, 1.6 rockers, valvetrain work, etc.). Those numbers in a perfect world would result in anywhere from .1 to .3 ET reduction.
^Agreed.
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