6.0 boost pressure .....

[Ford94stroker]

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.

[Ford94stroker]

any help would be great

[Lilpooh]

Has it always been 20-21psi, or did this happen after certain mods?

[Dicion]

Turbo Vanes could be stuck and needing a cleaning.

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

[amdriven2liv]

Crack in the CAC tubing somewhere?

[Ford94stroker]

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

[Ford94stroker]

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?

[Lilpooh]

Originally Posted by Ford94stroker

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.

[Ford94stroker]

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.

[Lilpooh]

Originally Posted by Ford94stroker

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.