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 and timing advance

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Old 12-21-2005, 01:57 AM
  #1  
thomas4297
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Default fuel pressure and timing advance

89 mustang 5.0 gt 40 heads,gt 40 intake,bbk headers,bbk 75mm throttle body and egr spacer,75mm pro-m mass air sensor,24lb injectors,190lph fuel pump,adjustable reg.

need to know a good fuel pressure setting and timing advance
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Old 12-21-2005, 02:49 AM
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Black Snake
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Default RE: fuel pressure and timing advance

12* and 32lbs I heard was a good setup, 14* with Premium gas.
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Old 12-21-2005, 02:59 AM
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crazyhorse
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Default RE: fuel pressure and timing advance

try 38-40 .
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Old 12-21-2005, 11:31 AM
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stanglx2002
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Default RE: fuel pressure and timing advance

alll cars are different it just depends on if your car is running rich or not
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Old 12-21-2005, 12:00 PM
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angcobra
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Default RE: fuel pressure and timing advance

best to set the fuel pressure on the dyno to get proper A/F ratio, otherwise it is just a guess.
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Old 12-21-2005, 12:30 PM
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Black Snake
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Default RE: fuel pressure and timing advance


ORIGINAL: crazyhorse

try 38-40 .

Isnt it different with 24lbs?
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Old 12-21-2005, 07:40 PM
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thomas4297
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Default RE: fuel pressure and timing advance

thanks for the replys running 39psi for fuel 14 degree advance seems to run good like that
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