Limits of stock 6.7 VGT Turbo - Ford Powerstroke Diesel Forum
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post #1 of 39 Old 12-10-2012, 03:28 PM Thread Starter
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Limits of stock 6.7 VGT Turbo

Hey guys,

I have a 2012 F-350 6.7 Powerstroke... I currently have the truck set up with H&S Black Maxx, Flo-Pro 5" straight pipe, and H&S EGR block off plates for the time being. I have 25k on the clock now, been tuned since 20k. Truck runs like a champ and shifts awesome with the H&S Trans tuning. No complaints here.

Have a couple questions... I did the deletes to make my truck last much longer - pretty much wanted to keep soot out of my intake, and fuel out of my oil. Those are no no's for me, as well as most of us Strokers out there.

I do realize the 2012's have a "hyper-balanced" turbo... and that when stock they seem to be a little better than the 2011 turbos, or not any better at all. When my truck was stock I would see 20-21 psi max, never a pound more. I never take my truck off of the "NO POWER" tune on my Black Maxx... Mostly because I am scared it's going to hurt the truck and I want it to last, but secondly, because of this turbo.

My questions are... Why am I seeing spikes and high load low RPM of 30-31 lbs of boost with the no power tune on when not even towing, and holding 25 lbs under full throttle?

Is 25-30 psi too much boost for this turbo to handle? That's what it's showing on my "no power" tune... Why am I seeing more boost than stock with a no power tune on?

Thanks!
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post #2 of 39 Old 12-10-2012, 04:27 PM
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because its just "called" the "no power" tune. It's definately not no power, it's just the "least" stage of a tune on the tuner.

2012 F250 CCSB 6.7 (3.73 gears) H&S Minimaxx (My own tuning), H&S 64mm turbo kit, H&S Dual Fueler, H&S Low Pressure Fuel System, H&S CCV delete, No Limit s2 Intake, PMF 3-link, PMF traction bars, Fox 2.0s, Icon 2.5" coils, Platinum 20s w/ 295/65 toyo at2s, Airlift bags and wireless controller, TFI 50gal, rollX, AMPboards,
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post #3 of 39 Old 12-10-2012, 04:46 PM
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No Power mean STOCK Ford tuning, 400HP 800ft lbs

2012 F-250 6.7L 4x4 Lariat CCSB, Titan 51gal, BDS 4" kit with Fox Shox, Toyo AT II 35/12.50R20, Ranch Hands front and rear

2007 F-150 King Ranch 4x4 2" Autospring, Bilstein 5100s on all four corners. Nitto A/T 285s.

2005 Chevy Tahoe 5.3l 2WD
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post #4 of 39 Old 12-10-2012, 04:47 PM
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Quote:
Originally Posted by wreedPS View Post
No Power mean STOCK Ford tuning, 400HP 800ft lbs
No, it doesn't. Call h&s and ask.

2012 F250 CCSB 6.7 (3.73 gears) H&S Minimaxx (My own tuning), H&S 64mm turbo kit, H&S Dual Fueler, H&S Low Pressure Fuel System, H&S CCV delete, No Limit s2 Intake, PMF 3-link, PMF traction bars, Fox 2.0s, Icon 2.5" coils, Platinum 20s w/ 295/65 toyo at2s, Airlift bags and wireless controller, TFI 50gal, rollX, AMPboards,
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post #5 of 39 Old 12-10-2012, 04:49 PM
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enlighten us then?

2012 F-250 6.7L 4x4 Lariat CCSB, Titan 51gal, BDS 4" kit with Fox Shox, Toyo AT II 35/12.50R20, Ranch Hands front and rear

2007 F-150 King Ranch 4x4 2" Autospring, Bilstein 5100s on all four corners. Nitto A/T 285s.

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post #6 of 39 Old 12-10-2012, 04:52 PM
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Quote:
Originally Posted by wreedPS View Post
enlighten us then?
I already did... It's just called that.

2012 F250 CCSB 6.7 (3.73 gears) H&S Minimaxx (My own tuning), H&S 64mm turbo kit, H&S Dual Fueler, H&S Low Pressure Fuel System, H&S CCV delete, No Limit s2 Intake, PMF 3-link, PMF traction bars, Fox 2.0s, Icon 2.5" coils, Platinum 20s w/ 295/65 toyo at2s, Airlift bags and wireless controller, TFI 50gal, rollX, AMPboards,
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post #7 of 39 Old 12-10-2012, 04:53 PM
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ok thanks.

2012 F-250 6.7L 4x4 Lariat CCSB, Titan 51gal, BDS 4" kit with Fox Shox, Toyo AT II 35/12.50R20, Ranch Hands front and rear

2007 F-150 King Ranch 4x4 2" Autospring, Bilstein 5100s on all four corners. Nitto A/T 285s.

2005 Chevy Tahoe 5.3l 2WD
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post #8 of 39 Old 12-10-2012, 04:54 PM
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Quote:
Originally Posted by wreedPS View Post
No Power mean STOCK Ford tuning, 400HP 800ft lbs
That's not completely correct....when you tune the truck with the black maxx, you are no longer running Ford stock tuning, you are running hs tuning even in the no power setting. I would wager that even on the no power setting, you are still seeing performance improvements. I know with the no power setting on my truck I can still tell a difference vs stock.

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post #9 of 39 Old 12-10-2012, 04:55 PM
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I run most of the time without the tuner even plugged in, what level am I running on then? I always thought this was the stock tune with DPF removed.

2012 F-250 6.7L 4x4 Lariat CCSB, Titan 51gal, BDS 4" kit with Fox Shox, Toyo AT II 35/12.50R20, Ranch Hands front and rear

2007 F-150 King Ranch 4x4 2" Autospring, Bilstein 5100s on all four corners. Nitto A/T 285s.

2005 Chevy Tahoe 5.3l 2WD
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post #10 of 39 Old 12-10-2012, 05:06 PM
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Quote:
Originally Posted by wreedPS View Post
I run most of the time without the tuner even plugged in, what level am I running on then? I always thought this was the stock tune with DPF removed.


Reverts to no power h&s tune, which is still more than stock

2012 F250 CCSB 6.7 (3.73 gears) H&S Minimaxx (My own tuning), H&S 64mm turbo kit, H&S Dual Fueler, H&S Low Pressure Fuel System, H&S CCV delete, No Limit s2 Intake, PMF 3-link, PMF traction bars, Fox 2.0s, Icon 2.5" coils, Platinum 20s w/ 295/65 toyo at2s, Airlift bags and wireless controller, TFI 50gal, rollX, AMPboards,
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