95 TSI AWD Holset VGT Project.

[aero_sallee]

Here is my project. Its back to not running again thanks to a machine shop mis-communication but here is what I did this summer. Some of you may find it useful, especially if interested in the Holset VGT turbos. I'm sure I will be updating it slowly. Some of it was copy past, so if it sounds funny, you know why.
Here is the original thread, which has more information and posts. http://www.homemadeturbo.com/forum/showthread.php?t=95221

My new forum. Trying to have a central place for VGT discussion and information. Been posting all the liknks I've found there. http://www.turbotalk.org/bb/index.php

It was a pretty big project this summer, correcting a lot of DSM style little breakdowns and previous owner #### ups as well as some of my own.
Really trying to clean the car up and make it nice again. Unfortunately I ran out of time to do the paint and body work. Got the typical severe hrysler clearcoat fade.
The basics of the setup:
95 AWD
Stock trans
ACT 2600
94 Galant 2.4l
Eagle/wiseco 8.3:1
1000CC delphi's.
Whinebro 255HP
Stock 2g head/cams/intake
Megasquirt 2E 2.01
Stock exhaust manifold, with HMT style adapter to fit the turbo with included CDM 38mm gate
E85
For the moment, no intercooler and 8" of 3" pipe for the exhaust
Now the interesting part, VGT turbo, Holset HE351VE from a 6.7 Cummins.
Housing variable from something very small, 3-4cm^- all the way to 25cm^2
The stock actuator on the turbo is an electrically controlled actuator normally controlled by the ECM. Unfortunately I haven't figured out what kind of signal the ECM sends to the unit to position it. My experimental solution is a 14b wastegate actuator on the VGT rack arm. I didn't think it would work worth a shit, but so far its working pretty damn well.
Turbo compressor and turbine wheel dimensions.
Wheel measurements
Turbine
EX 2.357
IND 2.755

Compressor
EX 3.38
IND 2.37
Compressor is as close as I can measure since its a 7 bladed wheel. Measurements similar to the large 6bladed HX40.


I'll start with turbo pictures since its out of the ordinary.

VGT closed

VGT open

Turbine wheel and VGT vanes.

Compressor cover

VGT actuator

Actuator internals

Compared to a stock 90-94 Eclipse 5spd 14b turbo also what the actuator I used came off of.

Exhaust housing compared to a BEP housing for an HX40 and my ghetto adapter.

Edit: Link to original thread changed due to forum software change to Vbulletin.

Link to VGT section on my forum. Build thread is posted there also, as well as lots of VGT information.
http://www.turbotalk.org/bb/viewforum.php?f=25

 

[sniver]

What kind of power can these put out? Spool up differences from the 4cm^2 to the 14cm^2 (I believe is .89 a/r)? I have one of these and thought it was to big even with the vanes out for spool. Nobody had any real insight, do you?

 

[costas14]

is that safe? that thing is pretty big did it come of a diesel truck? im thinking you will be putting down over 600hp?

 

[sniver]

I read through your link after my post.

"VGT fully closed, and in 4th gear
1800 1psi
2000rpm 3psi
2500 8psi
2600 10 psi "

People are claiming it similar to a hx40, good for 67lbs/min.

And it is not a standard flange.

Read through that link, it will answer many of the questions you want to ask.

 

[gixrman]

I read your other post. Have you tried going to a Dodge dealership and asking to look at or photocopy the wiring scm. for that year truck. Very cool if you could get this to work to your advantage.

 

[ndsti]

With that much circuitry your propably looking a pulse width modulation (PWM) control system. It looks to work much like R/C servos, three wires, positve, negative and control.

 

[costas14]

what vehicle did this come off, i can look it up on alldata

 

[aero_sallee]

The turbo is off a 2008 Dodge Ram with the 6.7 cummins.

As you can see from reading the link, it spools pretty damn fast for a 650+ whp compressor. Do keep in mind the fact that is on a 2.4.

 

[costas14]

i got a couple turbos from a cummings motor, tow truck straight 6 diesel, i was thinking about something like that but by the time it spools though ill be redlining

 

[aero_sallee]

Changed and added links.

 

[aero_sallee]

Fixed broken picture links