LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What should my Fuel Pressure be set at?

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Old Aug 30, 2003 | 06:59 PM
  #1  
OBDIICamaro's Avatar
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From: South Cali.
What should my Fuel Pressure be set at?

List of Mods, Nitrous cam, Heads, 30#ers, Ed Write Programming and will have a shot of the juice on it soon. Its idleing at 20# and on WOT its about 30#, I know this is gotta be way too low
Old Aug 30, 2003 | 07:07 PM
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Well I just set my fuel pressure and I am also running 30 svo injectors. I have mine set at 35 idling with the vacuum on and 43 with the vacuum off. Was told by many this is a good pound to be at if the injecotr constant is set at 31.63. I am not sure what yours is set at. This does make a differance.
Old Aug 30, 2003 | 07:14 PM
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Running N20 it needs to be b/t 35 & 40 at WOT.
Old Aug 30, 2003 | 07:16 PM
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You can bump it up. I am running NOS also on mine. If you do turn it up, make sure that it doesnt start running rich. Thats all.
Wehn Ed did your programming, didnt he ask you what fuel pressure your running?
Old Aug 30, 2003 | 07:51 PM
  #5  
OBDIICamaro's Avatar
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I honestly dont remember. Another thing I have the Aeromotive AFPR how do I go about adjusting it?
Old Aug 30, 2003 | 07:53 PM
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I am not sure on that one. I am running the Accel model. I just have to turn the screw outwards to decrease fuel pressure. Increase of course is turning it in. I also have a fuel pressure gauge mounted in the engine compartment.
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