2005-2009 Mustang Information on The S197 {Gen1}

General Boost and Fuel Pressure question

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Old May 22, 2008 | 04:09 PM
  #1  
ramairgt1's Avatar
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General Boost and Fuel Pressure question

I just finished installing my boost/vac and fuel pressure gauges on my car. So far so good...I do have a few questions..

What vacuum readings do whipple owners generally get when the car is at idle, mine is reading 20vac at idle.

What fuel pressure readings do whipple owners get at idle and at speed. I get around 20-30psi at idle and 60-70 when I get on it.
My sensor is spliced into the fuel crossover line between the 2 fuel rails.

I just want to make sure everything is reading ok.
Thanks!
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Old May 23, 2008 | 05:14 AM
  #2  
MaverickMLFD371's Avatar
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From: New Jersey
exactly where it should be. my vac is usually -20 at idle. boost should jump to 10psi when i slam the pedal on my whipple.

Fuel pressure is about the same 25-30 psi at idle and 60-70psi @ WOT! mine is also spliced into the fuel rail cross over line
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