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

LT1 fuel pressure

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Old 07-11-2006, 02:03 PM
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Default LT1 fuel pressure
Don't they run at 45 psi or is it more? Thanks
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Old 07-11-2006, 02:26 PM
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should be around 45 static pressure and with high vacumm should be around 38 withlow vacumm should run around 42-45
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Old 07-11-2006, 02:30 PM
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Old 07-11-2006, 07:26 PM
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Could you clarify the high vacumm/low vacumm. When I pull the line off my regulator, and plug it I'm only getting 36 psi. Everyting I've read says that it should be at 44 at idle.
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Old 07-13-2006, 09:16 PM
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with the line off the regulator, which is low vacuum and simulates WOT, it should be around 42-45 at idle. When plugged back up, which is high vacuum, it should be around around 36-38.
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