Fuel pressure - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 01-18-2010, 05:42 AM Thread Starter
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Fuel pressure

Yesterday, I installed a fuel pressure gauge off the back of the fuel bowl. After purging all the air ,I got 37 psi with just the key on . Then when idling it was at 37 psi for about 30 seconds then it jumped up to 48 psi. I now this is normal pressure but I did not know that the pressure would increase after it runs a bit. Is this normal and I'm thinking about the BB mod. Not today , its freezing rain and 31 degrees.

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post #2 of 4 Old 01-18-2010, 05:58 AM
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Actually normal pressure should be up around 55-75 I think



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
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post #3 of 4 Old 01-18-2010, 06:02 AM Thread Starter
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These pressure reading are with a new OEM fuel pump installed by Ford. I read with the mods that you can increase pressure to 55 + but will run into o-ring problems near 70 psi. Normal is 30 -60 psi in my alldata.

2000 F250 King Ranch Crew Cab 7.3L LB 4X4 100% home brewed Biodiesel
ZF6 6SPD trans
Zoo Dad Mod
DP F5 Tuner
Wicked Wheel
AFE Intake
4" straight exhaust with 5" tip
Isspro 3 Gauge Pod
285/75/16 Cooper ATP on factory 16's
Banks Big Head
298K
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post #4 of 4 Old 01-18-2010, 07:16 AM
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70 is fine and will not hurt anything. I run 70 to 75 on my VO side (Fass pump) and 55 to 60 on the diesel side (factory pump) Pulling a load Ill drop to 45 to 50 on the factory pump.

Just a basic 01 F350 CCLB SRW -Good from a far but far from good
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