My Mitsubishi VGT Turbo Install

[mirageturbo]

Well I have embarked on a new project to install a VGT(Variable Geometry Turbo) from Mitsubishi Japan. It is a TFO7. I have purchased a Rev Hard manifold bec ause it uses a T4 mounting flange which matched the TFO7 base.

I will post pics tomorrow, detailing the turbo and the way its exhaust housing works using the VGT technology.

I will be using this setup on a 4G63T.

I will keep you all up to date.

 

[92awddsm]

ouch. ford did however have issues with their turbos, especially on earlier 6.0. Have you ever heard a what sounds kind of like a burping sound after hard accelerations? If so your turbo is bad. This is usually an early sign the veins are sticking. Next it pretty much locks up. I had a customer come in with an 05 and had less than 50k. His complaint was black smoke and no power. Diagnosis: the turbo was carboned up and was pretty much frozen. Cool stuff

Actually, at the moment, the only noise it makes when turned off is the turbo spooling down. Now you have me paranoid. I will be listening more closely from now on. Better yet, Ill just stick to the 7.3.

 

[dieseltech]

7.3's rock!! Sorry about the irrelevant posts guys. And as far as the 6.4L goes.....hmmm twin turbos and one is a VGT? Sounds like disaster to me, but time will tell.

 

[PieEyedPiper]

ressurection.

wonder if he really sold it, as posted above..

 

[evileclipse909]

Sorry to bring up an old thread but this topic has me very interested. I've been able to find VGT holset turbos cheaper than the hx35's and hx40's. I was just wandering if it is possible to make this technology work on a dsm.

 

[1stGenTSi]

Sorry to bring up an old thread but this topic has me very interested. I've been able to find VGT holset turbos cheaper than the hx35's and hx40's. I was just wandering if it is possible to make this technology work on a dsm.

There's at least one guy (aero salle) in the Holset forum running a VGT. I don't think you have to do much more than hook up a wastegate actuator and a vacuum line.

 

[caged]

If its the same setup i saw its only temporarily setup like that because he hasn't found anything to control the vane motor as it runs off a can bus signal. His setup is on a 2.4 also. They are friggen huge and hardly fit between the engine and radiator and weigh heaps.

 

[aero_sallee]

If its the same setup i saw its only temporarily setup like that because he hasn't found anything to control the vane motor as it runs off a can bus signal. His setup is on a 2.4 also. They are friggen huge and hardly fit between the engine and radiator and weigh heaps.

It originally started as a temporary setup, it was sort of an experiment running it that way since no one has been able to use the stock VGT actuator yet. It worked MUCH better than I expected so it has turned into a long term setup for me. If people crack the VGT actuator I may end up going to it eventually but this way works absolutely fine for me. With some tweaking when I get my spun bearing taken care of I will be testing a boost controller on the VGT wastegate actuator. I expect I can get the current mechanical system to work even better.

They are pretty large, but so are many turbos that people install in a DSM, the difference is the size of the hotside in this case. If I had used a topmount, or a custom manifold it could have been placed better. Using the stock manifold and an adapter that was what I was limited too.

Not having the stock electrical VGT control on it helped with the space used front to back quite a bit also.

 

[_95AWD_]

spool wise, with the vanes shut. when does she come up?

 

[airmail96]

Aeros results:

The actuator holds the VGT closed until 6-7 psi, then spool slows down. Its weird, driving normally you can't really hear much exhaust note wise the only thing you hear is the turbine wheel whistling, keep in mind this is through 8" of exhaust. Once it hits 6-7 lbs, the note changes totally, the rack is open fully by ~10-11 lbs I beleive. It sounds sort of like an electric cutout opening, but not as loud. I think even though it has a huge hotside the vanes still help quiet it down, but make it whistle more. Go under and overpass and it sounds like a jet flying by.
Here is a log from ~70mph cruise in 5th gear showing the transient response. 70kpa, to 9psi in about .95 seconds at ~3000-3100rpm.
It spools a good 1000-1200 rpm faster than the small 8 blade HX40 in the .55A/R bullseye housing I had on the car before. Even with the VGT open fully which is somewhere far above 1A/R. Over 3500rpm or so the boost keeps climbing, by 4400 rpm it reaches 24lbs and climbing rapidly. I'm really glad I included the external gate

 

[_95AWD_]

Aeros results:

The actuator holds the VGT closed until 6-7 psi, then spool slows down. Its weird, driving normally you can't really hear much exhaust note wise the only thing you hear is the turbine wheel whistling, keep in mind this is through 8" of exhaust. Once it hits 6-7 lbs, the note changes totally, the rack is open fully by ~10-11 lbs I beleive. It sounds sort of like an electric cutout opening, but not as loud. I think even though it has a huge hotside the vanes still help quiet it down, but make it whistle more. Go under and overpass and it sounds like a jet flying by.
Here is a log from ~70mph cruise in 5th gear showing the transient response. 70kpa, to 9psi in about .95 seconds at ~3000-3100rpm.
It spools a good 1000-1200 rpm faster than the small 8 blade HX40 in the .55A/R bullseye housing I had on the car before. Even with the VGT open fully which is somewhere far above 1A/R. Over 3500rpm or so the boost keeps climbing, by 4400 rpm it reaches 24lbs and climbing rapidly. I'm really glad I included the external gate

Thanks!

I guess i'll PM him. Im interested in how it acts if you keep the vanes totally closed.

 

[joshyak]

I am developing a stand-alone controller for the HE351VE. I plan on freely sharing all the information when its done. I need another actuator to finish the work. Preferably with the circuit board intact. I'll take almost anything though. Have one lying around? Please PM me if you do.