6.0 boost pressure ..... - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 08-20-2011, 09:05 PM Thread Starter
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6.0 boost pressure .....

I am having a problem building boost pressure. i can't peak over 20-21 psi. i have a few mods as well. here is the list : edge juice w/attitude platinum-hot unlocked, fuel pressure reg. upgrade spring, upgraded banjo bolts, airdog 2 165, upgraded stand and dummy pipes, upgraded stc fitting, egr delete, 5" exhaust, afe stage 2 intake, zoodad mod, water meth. truck 2005 has 92,000 miles. thanks in advance.
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post #2 of 14 Old 08-21-2011, 11:23 AM Thread Starter
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any help would be great
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post #3 of 14 Old 08-21-2011, 11:55 AM
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Has it always been 20-21psi, or did this happen after certain mods?

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #4 of 14 Old 08-21-2011, 01:05 PM
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Turbo Vanes could be stuck and needing a cleaning.

http://www.forddoctorsdts.com/articl...icle-06-05.php

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Basic Info for the 6.0 Owner

Properly Flushing a 6.0 Powerstroke

Injector Problems & Solutions

No Power? No Boost? Check/Clean your EGR VALVE!

2006 F350 SWR Lariat
-EGR Delete
-Evans NPG+ Waterless Coolant
-ZERO Pressure Coolant system
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post #5 of 14 Old 08-21-2011, 01:21 PM
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Crack in the CAC tubing somewhere?
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post #6 of 14 Old 08-21-2011, 01:34 PM Thread Starter
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not that i noticed, i was playin in it the other day and noticed i wasn't makin as much boost as i had in the past (average 25 psi)..... i am leanin towards intake elbow leaking where i tapped for the meth.... but not sure
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post #7 of 14 Old 08-21-2011, 01:44 PM Thread Starter
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ok so you mentioned a crack somewhere.... i went out and looked at it, and i found a 1/8" lont crack where i tapped my elbow for the meth. kinda hard to see unless i am on the right angle.. could that be my problem?
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post #8 of 14 Old 08-21-2011, 02:04 PM
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Quote:
Originally Posted by Ford94stroker View Post
ok so you mentioned a crack somewhere.... i went out and looked at it, and i found a 1/8" lont crack where i tapped my elbow for the meth. kinda hard to see unless i am on the right angle.. could that be my problem?
It could, your gonna need to mix up a soap/water solution, spray it on crack, have someone throttle it to see if the soap/water solution bubbles. You also need to check the up-pipe/y-pipe flex joints for soot deposits which would be a crack in them pipes. Take a good look at the IC boots, especially the one coming off the turbo, sometimes the rip is noticeable, sometimes they rip just under the clamp where you can't see the rip.

I had cracked one of my ports for water/meth on my CFM+ elbow, used a poxy like JB weld to fix the cracked plastic around the brass insert.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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post #9 of 14 Old 08-21-2011, 02:13 PM Thread Starter
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i know my exhaust isn't cracked cause i just had my turbo off to do the stc upgrade and checked it. now it may be my IC boot on the turbo, its been on and off quite a few times ( i will check it.) i have been thinkin bout replacing my intake elbow anyway... lookin at the s&b it has the ports and high flow rate.
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post #10 of 14 Old 08-21-2011, 03:07 PM
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Originally Posted by Ford94stroker View Post
i know my exhaust isn't cracked cause i just had my turbo off to do the stc upgrade and checked it. now it may be my IC boot on the turbo, its been on and off quite a few times ( i will check it.) i have been thinkin bout replacing my intake elbow anyway... lookin at the s&b it has the ports and high flow rate.
Just because you checked it, doesn't mean that it couldn't have just happened, reinstalling a turbo and aligning the exhaust pipes take a toll on the flex joints.

The only thing your gaining on a aftermarket elbow is the tapped ports, your not gaining any more air/flow, the main restriction is the intake manifold and ports of the heads. You might as well stick with a stock elbow, unless you like wasting money and want a fancy one.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
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