Increasing fuel pressure - Ford Powerstroke Diesel Forum
 
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post #1 of 9 Old 02-01-2014, 11:39 AM Thread Starter
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Increasing fuel pressure

My truck is basically stock and I'm rebuilding fuel bowl, is there any benefit changing out the spring to increase fuel pressure without any mods or tunes?

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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post #2 of 9 Old 02-01-2014, 03:11 PM
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Even with tunes it doesn't make a real difference...

In these engines the Fuel Pressure has no effect on Injection Pressure, it's more of just delivery to the system that does the actual injection. So, no, I'd leave it alone
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post #3 of 9 Old 02-01-2014, 03:33 PM Thread Starter
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Some people saying it may idle smoother and quieter?

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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post #4 of 9 Old 02-01-2014, 06:47 PM
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Rather than change it. I just stretched mine out. Mine does seem to be quieter and smoother. Maybe its in my head lol but stretching it made me feel better


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post #5 of 9 Old 02-02-2014, 05:53 AM
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Quote:
Originally Posted by Carolina444 View Post
Some people saying it may idle smoother and quieter?
I bet those guys have split-fire plugs, a magnet on the fuel line, and a Turbolator in the intake of their gas cars too

It's always amazed me how people can delude themselves and are So Sure they have made an improvement on the choices they've already made....

Look, it can't hurt, try it! But I'm tellin' ya, the system is in No Way "starved" for fuel at the stock pressure
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post #6 of 9 Old 02-02-2014, 07:13 AM
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its just an issue at WOT if you cant keep fuel pressure up.

99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.

Dad-2000 7.3 4x4 110k miles, Autometer Gauges, Superchips 1705, 6637, 4" Exhaust, BD Billet Wheel, TruCool Max
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post #7 of 9 Old 02-02-2014, 07:16 AM Thread Starter
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Guess I need to get my gauges installed to see where and what my fuel pressure doing and then make the changes if needed

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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post #8 of 9 Old 02-02-2014, 07:24 AM
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once you have your chip watch fuel pressure at WOT if it drops too much (less than 50 psi) i would get atleast the billet fpr housing from dieselorings. it comes with 3 fp springs that raise fp.

99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.

Dad-2000 7.3 4x4 110k miles, Autometer Gauges, Superchips 1705, 6637, 4" Exhaust, BD Billet Wheel, TruCool Max
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post #9 of 9 Old 02-02-2014, 07:34 AM Thread Starter
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Ok cool thanks

Early 99 f250 cclb,244k, ccv, Tymar intake, 4" diamond eye, 5" tip, 140v IDM, php hydra, isspro's, riffraff boots & billet wheel, ebpv delete w/ high flow outlet.
P.I.S injectors coming soon
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