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

Fuel pressure.

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Old 05-01-2007, 10:11 PM
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Default Fuel pressure.
Im looking for the stock fuel pressure of a 96 LT1. I know they do 24 lbs/hr but what is the fuel pressure? Thanks
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Old 05-01-2007, 10:27 PM
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i believe 43 psi.if thats not it i know im close.
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Old 05-01-2007, 10:34 PM
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Originally Posted by SincalT/A
i believe 43 psi.if thats not it i know im close.
Should be between 41-43 psi at WOT I do believe.
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Old 05-01-2007, 11:03 PM
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Ah thank you.
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Old 05-02-2007, 12:22 AM
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Also 37 at idle.
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Old 05-02-2007, 09:34 AM
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With the vacuum line removed from the FPR, the stock fuel pressure should be 41 - 47 psi.
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Old 05-02-2007, 11:03 AM
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^^^Mine was around 55psi when I dissconnected the vacuum line. At idle it's around 46-48psi. guess that explains the richness, what would you guys think it could be, tune? Fuel injectors don't leak, tested for that.
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