Fuel Pressure - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 14 (permalink) Old 12-10-2007, 06:53 AM Thread Starter
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Fuel Pressure

Any idea what my gauge should be reading. Like an area that it should be running in? Really dont have the slightest clue.

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post #2 of 14 (permalink) Old 12-10-2007, 12:52 PM
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Re: Fuel Pressure

Fuel pressure should be around 60psi.

'95 Ford F-350, CC,4x4,SWAMPS 300/200Hybrids,H-11 Head studs,Comp 910 Springs,Chromemoly push rods,modded TE 17*, GARRETT GT40 TURBO,built trans with 3 disc billet convertor,SWAMPS 6 position chip,3"DP to 6" single, IDM Mod,Gauges,'02 SD IC,Electric Fuel system and bunch of other stuff.
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post #3 of 14 (permalink) Old 12-10-2007, 03:23 PM
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Re: Fuel Pressure

Fuel pressure at idle should be 65to75psi
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post #4 of 14 (permalink) Old 12-10-2007, 05:54 PM
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Re: Fuel Pressure

For optimum performance 60psi or a little above. It should run just fine as long as you have 40psi or more though. I don't know what the stock regulator is set at but I think it's around 50 or 55psi.

Eric
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300/100% B codes, Stealth dual pumps, H2E, BTS trans, ARP head studs, Comp 910 valve springs, Tyrant Tunes
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post #5 of 14 (permalink) Old 12-10-2007, 07:18 PM
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Re: Fuel Pressure

Assuming you have the factory mechanical fuel pump, you will probably have a hard time reading the gauge unless you have added some type of snubber (orfice restriction) to the line to the gauge. The mechanical fuel pump puts some pretty big pulses on the system.

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Michael Pliska

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post #6 of 14 (permalink) Old 12-10-2007, 09:17 PM Thread Starter
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Re: Fuel Pressure

yea the pump is stock. When idle it bounces from about 80-85 psi. Driving its steady but it depends on how much I am on it obviously. Would a new fuel filter affect the outcome of the PSI?

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post #7 of 14 (permalink) Old 12-10-2007, 11:13 PM
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Re: Fuel Pressure

Whether a new filter increases or decreases measured fuel pressure depends on whether you are measuring upstream or downstream of the filter. If your measurement point is downstream of the filter, a new filter should result in higher fuel pressure. If yours is only bouncing 5 psi, the gauge must already be providing some level of damping. With a very responsive gauge, my truck bounces about 40 psi total while idling.

Regards,
Michael Pliska

95 F350 CC DRW, ISSPRO Performax gauges, Diamond Eye 3x4" DP & 5" exh, MBRP tip, Baby Swamps & tunes, Trans VB mods, Dunrite TC, Lock-Right, Cal-Tracs
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post #8 of 14 (permalink) Old 12-11-2007, 02:56 AM Thread Starter
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Re: Fuel Pressure

Quote:
Originally Posted by Michael View Post
Whether a new filter increases or decreases measured fuel pressure depends on whether you are measuring upstream or downstream of the filter. If your measurement point is downstream of the filter, a new filter should result in higher fuel pressure. If yours is only bouncing 5 psi, the gauge must already be providing some level of damping. With a very responsive gauge, my truck bounces about 40 psi total while idling.

Regards,
Michael Pliska
Sorry I dont understand hardly any of that. newbs

Ok so here is another question then. How can I get the fuel pressure to drop to what some others on here said it should be?

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post #9 of 14 (permalink) Old 12-11-2007, 02:47 PM
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Re: Fuel Pressure

Quote:
Originally Posted by StrokerTurbo7.3 View Post
Sorry I dont understand hardly any of that. newbs

Ok so here is another question then. How can I get the fuel pressure to drop to what some others on here said it should be?
I would leave it alone until you get an electric fuel system. If you get an electric system, then you will have a regualtor to adjust to whatever pressure. Good luck!

'95 Ford F-350, CC,4x4,SWAMPS 300/200Hybrids,H-11 Head studs,Comp 910 Springs,Chromemoly push rods,modded TE 17*, GARRETT GT40 TURBO,built trans with 3 disc billet convertor,SWAMPS 6 position chip,3"DP to 6" single, IDM Mod,Gauges,'02 SD IC,Electric Fuel system and bunch of other stuff.
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post #10 of 14 (permalink) Old 12-12-2007, 06:32 AM Thread Starter
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Re: Fuel Pressure

alright will do then lol. So its really no problem then

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