Duramax VGT on a 6.7 powerstroke

J

jkholder09

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As everyone knows the 6.7 powerstroke went to a 6 bolt head, lml style fuel system and has allot of other traits of the dmax.
Here is one more.

Elite Diesel is building a pedestal to put a Duramax vgt in the valley of a 6.7 powerstroke.

picture.php
 
MAXX IT OUT

MAXX IT OUT

<<<IT WORKS
Mar 1, 2013
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My buddy was wanting to do a big single VGT, one is 6.4, and I was thinking on of Mark 72's. I was wondering how hard it would be to get the tuning figured out, or it would be compatible, and wires would have to be splice?
 
J

jkholder09

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The ford stategy works off ebp(exhaust backpressure) and boost.
So there is not a vane position sensor.
That being said the engine learns the vanes from idle and driving, but the truck needs a custom tune if the ebp and boost at idle and driving are different.

Also the 6.4 is a compound twin so i am not sure the engine strategy would support a vgt.

Holset in larger trucks makes a mechanical vane adjuster. It works off of drive and boost and presses on the vane ring.
Perhaps that system could be adapted to the avnt garrett models?
 
dirty_max

dirty_max

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dont some of the holset vgt on the cummins and volvos run off of air pressure from the truck? its been a long while since ive had to trouble shoot one so i have forgotten
 
PureHybrid

PureHybrid

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dirty_max said:
dont some of the holset vgt on the cummins and volvos run off of air pressure from the truck? its been a long while since ive had to trouble shoot one so i have forgotten
Click to expand...

The very early ones did, IIRC. They are all electric vgt controllers now for over the road trucks.
 
Harbin_22

Harbin_22

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There was a guy around here the took the HE351 off a 6.7 Cummins and put it on a 2000 dodge. He rigged the vanes to a waste gate and it actually worked fairly well. The waste gate actuaded the vanes
 
T

TRUBBS

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Harbin_22 said:
There was a guy around here the took the HE351 off a 6.7 Cummins and put it on a 2000 dodge. He rigged the vanes to a waste gate and it actually worked fairly well. The waste gate actuaded the vanes
Click to expand...

that's actually really common thing for cummins guys to do now.
my buddy has now done it on 3 of his first gens that hes owned
 
dirty_max

dirty_max

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Harbin_22 said:
There was a guy around here the took the HE351 off a 6.7 Cummins and put it on a 2000 dodge. He rigged the vanes to a waste gate and it actually worked fairly well. The waste gate actuaded the vanes
Click to expand...

i have a buddy who put a vgt from a 5.9 on his 24 valve and a lever on his shifter that he could control it with
 
TheBac

TheBac

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I take it whatever Dmax turbo they are using is larger than the Ford stocker? Sorry, dont pay much attention to Ford particulars.
 
J

jkholder09

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TheBac said:
I take it whatever Dmax turbo they are using is larger than the Ford stocker? Sorry, dont pay much attention to Ford particulars.
Click to expand...


Looks like an lmm or lbz turbo maybe.


The 6.7 turbo's have the double sided compressor wheel.
It is allot of rotating mass and imho they just go out of balance and pop.
We actually build the only turbo replacement kit for the 6.7 fords as of now.
There are a bunch of companies now coming out with them.
I just thought this idea was very interesting.
 
JoshH

JoshH

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jkholder09 said:
Holset in larger trucks makes a mechanical vane adjuster. It works off of drive and boost and presses on the vane ring.
Perhaps that system could be adapted to the avnt garrett models?
Click to expand...

Not likely. The Holset turbos I've seen have an external lever that the actuator moves, whether it be computer controlled or mechanical. The Garrett turbos use oil pressure and a control solenoid. It would take a lot of work to mechanically control it.
 
J

jkholder09

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JoshH said:
Not likely. The Holset turbos I've seen have an external lever that the actuator moves, whether it be computer controlled or mechanical. The Garrett turbos use oil pressure and a control solenoid. It would take a lot of work to mechanically control it.
Click to expand...

Josh,
The lever inside is a gear with teeth connected to the plunger.
I was considering a lathe and making a sleeve and shaft that slide in place of the solenoid.
We could in stall a lever with a wastegate actuator and tune it with spring pressure.
There are way too many smart guys on this forum, you being one of them, to say not likely.
I have taken center cartridges apart and the only tedious task is centering/timing the gears.
This would be a saturday project while we enjoy beer I would think.
Or we have guys on here that would build a seperate electrical module to control the vane position.
We can do anything on these trucks and guys on this forum prove it over and over.
 
JoshH

JoshH

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jkholder09 said:
Josh,
The lever inside is a gear with teeth connected to the plunger.
I was considering a lathe and making a sleeve and shaft that slide in place of the solenoid.
We could in stall a lever with a wastegate actuator and tune it with spring pressure.
There are way too many smart guys on this forum, you being one of them, to say not likely.
I have taken center cartridges apart and the only tedious task is centering/timing the gears.
This would be a saturday project while we enjoy beer I would think.
Or we have guys on here that would build a seperate electrical module to control the vane position.
We can do anything on these trucks and guys on this forum prove it over and over.
Click to expand...

I guess my post wasn't clear. I was simply stating "not likely" to doing it like the Holset turbos for the reasons I stated. On those, you simply remove the electronic controller, and you have access to the lever. Because of that, you can't just slap it on there, and it would probably be easier to start from scratch rather than trying to adapt the Holset parts onto the Garrett turbo. I know at one point, Fleece was making a controller to put the LLY/LBZ/LMM turbo on the LB7. I'm sure they could make it work on other vehicles as well.
 
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