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post #1 of 18 Old 11-13-2008, 09:55 AM Thread Starter
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Holset VGT Turbo

Does anyone have any info or experience on using the Holset Variable Geometry Turbo Setup?
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post #2 of 18 Old 11-13-2008, 10:08 AM
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Re: Holset VGT Turbo

After looking at some pictures of it I think that it may be a little too big. The exhaust housing is huge but the vnt capability may help out with that. It also appears to be bigger than an HX40 which in my opinion might be a little too big unless you intend to make some serious hp.
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post #3 of 18 Old 11-13-2008, 10:40 AM
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Re: Holset VGT Turbo

Hello,

We have a few of these in the shop, they are pretty big they have basically the same turbine wheel size as a HX35 the compressor wheel is a 60mm 7 blade HX40 wheel (this one is slightly larger than the 6 blade HX40 wheel). We have one torn apart on the bench right now, it looks like it would be pretty simple to make the variable work with some relays and wiring. If you need any dimensions of it or have any other questions we would be glad to get them for you. Thanks,
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post #4 of 18 Old 11-13-2008, 11:00 AM
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Re: Holset VGT Turbo

The turbo master to the rescue!
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post #5 of 18 Old 11-13-2008, 11:06 AM
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Re: Holset VGT Turbo

Are you serious? Just trying to be helpful.....
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post #6 of 18 Old 11-13-2008, 11:36 AM
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Re: Holset VGT Turbo

No sarcasm at all, You actually know what you are talking about unlike other people like me that just make a guess off of what they see.
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post #7 of 18 Old 11-13-2008, 11:48 AM
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Re: Holset VGT Turbo

OK, I understand....Well, we do this all day (work on turbos that is not talk on fourms Haha!) and are glad to help with whatever we can turbo related. Let us know if you all need anything else. Thanks,
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post #8 of 18 Old 12-07-2008, 12:23 PM
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Re: Holset VGT Turbo

I was looking at using one on my hybrid. Im thinking it would be hard to use it as a true VGT, the best way to use it would be with a external waste gate. just my 2 cents.
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post #9 of 18 Old 12-07-2008, 02:24 PM
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Re: Holset VGT Turbo

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Originally Posted by G-Pop Shop View Post
OK, I understand....Well, we do this all day (work on turbos that is not talk on fourms Haha!) and are glad to help with whatever we can turbo related. Let us know if you all need anything else. Thanks,
I have a question for you. I have a holset hx40pro and I have damaged the compressor wheel a little. I have seen people talking about a billet compressor wheel that is made for the hx40 pro. Do you know anything about this, or could you possibly get me one? And if not one of them, just a 6 blade pro wheel would be great as well.
Thanks in advance.
Sorry for the hijack.
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post #10 of 18 Old 12-11-2008, 01:11 AM
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Re: Holset VGT Turbo

My project. Mechanical control of the VGT using a internal wastegate actuator, and requires an external gate also as the VGT won't open far enough to keep boost down. More than one way to skin a cat, but it works pretty well. Its a long read but it may give some of you ideas for using one.
Its on homemadeturbo.com in the forced induction forum. Its "1995 TSI AWD project Holset VGT no 56k" is the name of the thread. I don't have 5 posts so I can't post the url yet unfortunately.
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post #11 of 18 Old 12-11-2008, 08:10 AM
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Re: Holset VGT Turbo

--------------------------------------------------------------------------------

I purchased an HY35 Holset turbo and Turbomaster came with it. I am not putting the turbo on a Dodge, so I can not use the part. This part sells for $139.00 new. I'm asking $75.00 OBO. This part will fit all 2003-2007 5.9L HY35, and will fit 2001-2002 5.9L HY35 auto trans. There is absolutly nothing wrong with the part, other than I can't use it for my application. The description below is from the distributor of the part. I found the instructions on the install on the web, so i will send a print out of them with the purchase.

DIESELSITE - DIESEL MAINTENANCE and PERFORMANCE



It is no secret that the factory boost control system on the 1998-2002 24V 5.9L is a poor design. The factory control is a spring-loaded/ boost activated canister. The canister receives a boost signal to overide spring pressure and allow the wastegate to open. The downside is the wastegate opens and closes often prior to "set point" simply because of it's design. Aftermarket "actuators" simply are higher tensioned springs. You could accomplish this simple task by shortening the wastegate rod. It delays the "set point", but doesn't overcome the issue of the wastegate's lack of staying shut until desired. The Turbo-Master waste gate controller is created as a direct, bolt on replacement for the factory spring loaded canister. In combination with the factory waste gate valve, the Turbo-Master forms a fully adjustable, turbine inlet-pressure (drive pressure) relief system. With the Turbo-Master, turbine inlet pressure is retained up to the preset point of bypass. This results in turbocharger performance that is increased across the design operational range. Even on an otherwise stock 5.9L, engine performance is increased by virtue of the resultant steady boost pressure.

The Turbo master is finally a control that makes the wastegate function as one should.
Boost pressure range of adjustment is 14 - 50 psi.
Typical power increases of 20hp are common as the increased boost moves the Air Flow Control (AFC) that much farther increasing fuel delivery.
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post #12 of 18 Old 12-11-2008, 08:56 AM
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Re: Holset VGT Turbo

Quote:
Originally Posted by bansheenut420 View Post
I have a question for you. I have a holset hx40pro and I have damaged the compressor wheel a little. I have seen people talking about a billet compressor wheel that is made for the hx40 pro. Do you know anything about this, or could you possibly get me one? And if not one of them, just a 6 blade pro wheel would be great as well.
Thanks in advance.
Sorry for the hijack.
Hello Bansheenut420....We will check this out and see what we can find for you and let you know what we come up with....Thanks
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post #13 of 18 Old 12-11-2008, 09:00 AM Thread Starter
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Re: Holset VGT Turbo

Quote:
Originally Posted by Aero83 View Post
My project. Mechanical control of the VGT using a internal wastegate actuator, and requires an external gate also as the VGT won't open far enough to keep boost down. More than one way to skin a cat, but it works pretty well. Its a long read but it may give some of you ideas for using one.
Its on homemadeturbo.com in the forced induction forum. Its "1995 TSI AWD project Holset VGT no 56k" is the name of the thread. I don't have 5 posts so I can't post the url yet unfortunately.
Here 'tis:

95 TSI AWD Project VGT Holset no 56k
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post #14 of 18 Old 12-11-2008, 09:20 AM
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Re: Holset VGT Turbo

Thanks for posting the link.
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post #15 of 18 Old 04-10-2010, 12:46 AM
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Re: Holset VGT Turbo

I am working on a method of controlling the factory actuator on the HE351VE. If anyone has one they're not using, please contact me at joshyaksich@hotmail.com
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