5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Fuel pressure setting

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Old May 5, 2005 | 01:38 PM
  #1  
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stanglx2002
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Default Fuel pressure setting

How do you tell when you have enough fuel pressure without taking it to the a dyno?
Old May 5, 2005 | 01:51 PM
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Default RE: Fuel pressure setting

dunnno im a carb man ,,,iwould just go ..
Old May 5, 2005 | 02:33 PM
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Default RE: Fuel pressure setting

im planning on it next month i was just trying to set it for now i have it at 42 psi right now
Old May 5, 2005 | 03:28 PM
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Default RE: Fuel pressure setting

Maybe a few pounds over the highest recommended factory setting for your year. Buy an air/fuel ratio gauge and hook it up.
Old May 5, 2005 | 03:28 PM
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Default RE: Fuel pressure setting

im not sure but i think higher is lean and lower is richer,,?? like i said im not a stang f/i man but thats the way it works on mercedes benzs
Old May 5, 2005 | 06:24 PM
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Default RE: Fuel pressure setting

its higher richer and lower lean. I wanted to know when i have enough psi
Old May 5, 2005 | 07:40 PM
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Default RE: Fuel pressure setting

42 sounds about right.
Old May 5, 2005 | 07:53 PM
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Default RE: Fuel pressure setting

thanks i will leave at that until i get it on the dyno and get it tuned
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