40 psi - Ford Powerstroke Diesel Forum

 
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post #1 of 7 Old 04-12-2011, 09:01 PM Thread Starter
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40 psi

Should the stock 03 turbo be able to put down 40 psi or is my gauge messed up. Was pulling 22000 total weight with an enclosed 32 foot gooseneck, at 55 in third up a 7 percent grade. at about 800 egt three inches after the turbo.

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2003 f250 6.0 , 5r110 , afe stage2 intake, diamond eye 4 inch exhaust dumps in front of passenger tire, arp headstuds, Swamps 58V FICM , SCT Tuner canned tunes for now, welded egr cooler, Bodywork by trailer in the ditch. made new by Tech Auto Body , Blue Ox goose neck hitch . gone the bank said I couldn't keep her R.I.P.
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post #2 of 7 Old 04-12-2011, 09:08 PM
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I doubt it. WOT with a stock turbo and no tune, will only put you at 25-28 psi. Even with a custom tune, unless your studded, will keep you under 30 psi.

06 F250 FX4 Lariat, 35" Nitto Terra Grapplers, 6" Lift Leveled w/Bilsteins, 4" MBRP TB Exhaust w/Cat Delete, Edge Insight w/EGT Probe & Dash Pod, SCT X3 w/SRL Tune From Matt @ Gearhead, Powerslot Rotors, Hawk Pads, Upgraded Oil Cooler Screen, Upgraded Turbo Drain Tube, Upgraded STC Fitting, Upgraded FPR Spring, CAT ELC Coolant, ARP Head Studs, Opti-Lube XPD, Coolant Filter, 45K Miles
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post #3 of 7 Old 04-12-2011, 09:17 PM Thread Starter
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My autometer read 40psi guess I had better start looking for a new one. I know the computer is supposed to limit the boost but could is the turbo capable of these kinds of pressures i love looking at the guage and seeing those numbers. This trip the truck really impressed me. Pulled like a freight train and wanted to keep going.

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2003 f250 6.0 , 5r110 , afe stage2 intake, diamond eye 4 inch exhaust dumps in front of passenger tire, arp headstuds, Swamps 58V FICM , SCT Tuner canned tunes for now, welded egr cooler, Bodywork by trailer in the ditch. made new by Tech Auto Body , Blue Ox goose neck hitch . gone the bank said I couldn't keep her R.I.P.
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post #4 of 7 Old 04-13-2011, 02:43 AM
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An aftermarket gauge could read that high. There is some controversy over what the stock gauge will read with the 3 bar map sensor.

Anyway, your EGT probe should really be in your exhaust manifold and not your down pipe. You are not getting an accurate reading of your EGT's there.
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post #5 of 7 Old 04-13-2011, 02:44 AM
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On my 2003 I usually pull 21 - 22 PSI sometimes seeing 23 using an Edge Insight.

PGreenSVT, the 03's don't have a factory boost gauge.

- Karl
2003 F-250 Crew Cab Short Bed Lariat PSD 6.0 Automatic FX4 Edge Insight with EGT Probe. Coolant Filter. All 6.0's need gauges
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post #6 of 7 Old 04-13-2011, 06:04 AM
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Originally Posted by nylyon View Post
On my 2003 I usually pull 21 - 22 PSI sometimes seeing 23 using an Edge Insight.

PGreenSVT, the 03's don't have a factory boost gauge.

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post #7 of 7 Old 04-13-2011, 07:13 AM Thread Starter
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I know the probe should be moved just been to lazy. %uess I had better just order a new pressure guage then.

My truck
2003 f250 6.0 , 5r110 , afe stage2 intake, diamond eye 4 inch exhaust dumps in front of passenger tire, arp headstuds, Swamps 58V FICM , SCT Tuner canned tunes for now, welded egr cooler, Bodywork by trailer in the ditch. made new by Tech Auto Body , Blue Ox goose neck hitch . gone the bank said I couldn't keep her R.I.P.
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