At what psi is a hpop considered weak? - Ford Powerstroke Diesel Forum

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post #1 of 12 Old 01-15-2014, 06:55 AM Thread Starter
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At what psi is a hpop considered weak?

I started using the torque app the other day and was watching my hpop pressure. Couple days ago The highest reading I saw was 2618psi under wot and 2450-2550 at cruising speeds. After all the hard wot driving playing with torque I sprang a leak at the hpop (valley soaked) and looks like I've lost around 100psi at wot and cruising speeds.. Are these pressures ok? Or weak? Hpop Looks original and I don't wanna wast my time pulling it and resealing a worn pump.. I don't plain on any aftermarket injectors anytime soon just a hydra chip in the near further.. Thanks

Tyler

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.
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post #2 of 12 Old 01-15-2014, 07:02 AM
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Watching HPO pressures without duty cycle is like turning the oven on without looking at what temp the recipe is calling for.

You need to know what the duty cycle is, without that you dont know if that is all the HPO that the tuning is calling for, or if the pump is struggling to make what is requested.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #3 of 12 Old 01-15-2014, 07:23 AM Thread Starter
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Ok.. I will get some more duty cycles readings but looking back at my last test I have @ wot. Thanks

Hpop 2514.8
Ipr 35.6
Injpw 3136
Boost 15.6
Ebp 38.6 psi

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 12 Old 01-15-2014, 11:02 AM
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Well I know for sure my pump is weak. On my PHP 80DD setting at WOT throttle I will settle into 75%DC @ 1,800 psi. My top end power pretty much sucks.

2014 F150 SCREW XLT 4x4 Ecoboost.
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post #5 of 12 Old 01-15-2014, 12:04 PM
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Originally Posted by blderman View Post
Well I know for sure my pump is weak. On my PHP 80DD setting at WOT throttle I will settle into 75%DC @ 1,800 psi. My top end power pretty much sucks.
Thats very low... Have you ever had the injectors out? You could have several bad injector O rings.

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #6 of 12 Old 01-15-2014, 12:07 PM
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Quote:
Originally Posted by CSIPSD View Post
Thats very low... Have you ever had the injectors out? You could have several bad injector O rings.

Yup, replaced them last year along with all the oil rail plug o-rings and a new IPR & ICP. There was definitely a noticeable bump in performance afterwards but still not where it should be. Just had a baby so a new pump will have to wait a long time...... :/

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post #7 of 12 Old 01-15-2014, 12:11 PM
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Getting ready to add #4 to my crew! Congrats...

01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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post #8 of 12 Old 01-15-2014, 12:12 PM Thread Starter
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Quote:
Originally Posted by Carolina444 View Post
Ok.. I will get some more duty cycles readings but looking back at my last test I have @ wot. Thanks

Hpop 2514.8
Ipr 35.6
Injpw 3136
Boost 15.6
Ebp 38.6 psi
Csipsd,

You think my numbers ok?
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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post #9 of 12 Old 01-15-2014, 12:12 PM
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Getting ready to add #4 to my crew! Congrats...
Thanks Joe, this is our 3rd and sadly, last. But we got a girl this time which is what we have been wanting so all is well!!

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post #10 of 12 Old 01-15-2014, 12:13 PM
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Originally Posted by Carolina444 View Post
Csipsd,

You think my numbers ok?
Thanks
How long were you at WOT for? Mine will start at similar numbers to yours but then rapidly fall off. (In less than 8 seconds)

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