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March 10th, 2011, 10:02 PM
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#1 |
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Newbie
Join Date: Mar 2011
Location: virginia
Posts: 3
 iTrader: 0 reviews
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fuel pressure
Have a 5.0 with ecam 24lb. injectors.What fuel pressure should I be running?
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March 10th, 2011, 10:28 PM
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#2 |
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I Post Entirely Way Too Much
1991 Ford Mustang GT
Join Date: May 2007
Location: San Diego, California
Posts: 6,058
iTrader: 0 reviews
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If thats all you have id say....stock fuel pressure
__________________
 DART 331ci stroker, AFR 185 heads, Trick Flow R intake, Accufab 70mm tb, 75mm pro m Maf, 30lb injectors, jba headers, 2 1/2" x pipe flowmaster super 10 mufflers, 255 fuel pump, 3:27 gears |
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March 10th, 2011, 10:44 PM
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#3 |
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MM Fanatic
89 GT
Join Date: Apr 2007
Location: NY
Posts: 4,875
iTrader: 2 reviews
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You always want stock fuel pressure with EFI. 39PSI at idle with the vac line off. The computer has tables it uses to calibrate how much fuel to spray. The tables are built in at 19# injectors with 39lbs of pressure behind them so it knows exactly how much fuel will spray for .xx amt of time the injector is open. If you change fuel pressure, it doesn't know how much fuel it's spraying anymore. If the MAF or EEC aren't calibrated for the 24# injectors then it's a guessing game though.
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