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post #1 of 26 Old 03-15-2012, 09:07 AM Thread Starter
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turbo issue

ok so im having a low boost issue with my truck that started after doing studs,ccv,smoke switch,stand pipes, dummy plugs, stc fitting. i only get 22-24 lb where before i would get 34lb. anyway my ? is im kinda thinking it might be turbo related so i was looking at a 68mm powermax turbo and with my mods now can stock injectors feed that turbo without issues. i run eric's tunes and know i would have him rewrite them for the turbo, but can i do turbo now and add an airdog and a set of 190 sticks later?
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mike

05 ccsb king ranch. 4" turbo back,egr delete, studs, ccv, 58v ficm tuned by eric, little extra fuel pressure, livewire tuned by vivian, mtw stage 1, 175/75s, afe cold air. hid's,led's recon led lights 5% tint80% windshield tint, high idle mod,fog/bright mod, train horns, 4" lift on 20x10s on 35's
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post #2 of 26 Old 03-15-2012, 09:41 AM
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It's turbo related alright, it's called a smoke switch!

Have you tried cleaning the turbo? Have you checked the IC boots for rips? Also look at the up-pipe/y-pipe flex joints. Don't forget to check the MAP hose and fitting to intake for clogged up or damaged hose.

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post #3 of 26 Old 03-15-2012, 10:19 AM
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^^^ Yup Yup Yup! If you are not getting as much boost, you probably have a leak someplace, or potentially your turbo needs to be cleaned.

2003 F250 6.0

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Originally Posted by Tuscany View Post
Compounds FTW!!!
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post #4 of 26 Old 03-15-2012, 10:59 AM Thread Starter
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no leaks. we pressure tested all the ic piping and the intercooler. we cleaned the turbo 12000 miles ago so it should be good but we are going to look at that also.
mike

05 ccsb king ranch. 4" turbo back,egr delete, studs, ccv, 58v ficm tuned by eric, little extra fuel pressure, livewire tuned by vivian, mtw stage 1, 175/75s, afe cold air. hid's,led's recon led lights 5% tint80% windshield tint, high idle mod,fog/bright mod, train horns, 4" lift on 20x10s on 35's
amsoil dealer
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post #5 of 26 Old 03-15-2012, 11:02 AM
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Have you looked for leaks around the y-pipe, specifically near the bollows? they are known to crack whe removing and reinstalling the turbo.

2003 F250 6.0

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Compounds FTW!!!
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post #6 of 26 Old 03-16-2012, 07:05 AM Thread Starter
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if i did have a leak at the y pipe wouldnt i hear it blowing out. im down about 10-12lb of boost.
anyway to my ? about running the larger powermax with stock sticks
mike

05 ccsb king ranch. 4" turbo back,egr delete, studs, ccv, 58v ficm tuned by eric, little extra fuel pressure, livewire tuned by vivian, mtw stage 1, 175/75s, afe cold air. hid's,led's recon led lights 5% tint80% windshield tint, high idle mod,fog/bright mod, train horns, 4" lift on 20x10s on 35's
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post #7 of 26 Old 03-16-2012, 07:59 AM
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The powermax is not that much bigger then the stock turbo and I run one with stock sticks you would be fine. But I think you should look at you y-pipe like the only guys said I had my y-pipe leak and you could not hear it.

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post #8 of 26 Old 03-16-2012, 09:33 AM
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Yeah, take a small mirror and look around all the bellow on the y-pipe for any soot residue. That is a tell tale sign that you have an exhaust leak.

2003 F250 6.0

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Compounds FTW!!!
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post #9 of 26 Old 03-16-2012, 09:54 PM
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I argee with everone,but I would also check the drivers intercooler to intake if you have a pastic pipe.Also check the line coming for driverside exhaust manifold for your sensor for vgt vane refenance for your ecm,make sure its's not clogged.I would also look at your intercooler to make sure it didn't bust open somewhere.Good luck.

2004 F250 Ext.cab fabtech 5.5" lift,and traction bars 35" on 18".2005-2007 grill and LED headlights,58v FICM, Warren dual HPOP system, fuel reg. return system, areo 1000a fuel pump, dual fuel filters, ARP studded heads, CCV reroute, EGR delete, 225/75 Warren injectors, water/meth injection (cooling mist),SCT tuner with customs, banks intercooler. MTW stage 4 turbo, built trans by Andy Warren, 4:10 Detroit lockers.
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post #10 of 26 Old 03-17-2012, 04:21 PM Thread Starter
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we pressurized from the turbo to the intake with no leaks, so all boots and intercooler is fine.
y pipe i would think i would hear with @12 lb of boost blowing out
mike

05 ccsb king ranch. 4" turbo back,egr delete, studs, ccv, 58v ficm tuned by eric, little extra fuel pressure, livewire tuned by vivian, mtw stage 1, 175/75s, afe cold air. hid's,led's recon led lights 5% tint80% windshield tint, high idle mod,fog/bright mod, train horns, 4" lift on 20x10s on 35's
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