GTM Performance Engineering: MHI Twin Turbo Official Release

SPOHN · 10-03-2013, 02:19 PM

Quote:

Originally Posted by tower74

Was #17 on the list....I have the cash on hand but I've heard way to much about the turbo being used on this kit.

I'm sure they are good but after the STS kit.....

Used? Clearify please? If you HEARD say who or it's you who responsible for such rumors.

Dzel · 10-03-2013, 02:23 PM

Listen to him he knows what he's taking about

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Dzel · 10-03-2013, 02:23 PM

As do I

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m3chhawk · 10-03-2013, 02:27 PM

Quote:

Originally Posted by SPOHN

Used? Clearify please? If you HEARD say who or it's you who responsible for such rumors.

Wrong form of used. Think "implemented" not "previously installed."

tower74 · 10-03-2013, 02:40 PM

Quote:

Originally Posted by SPOHN

Used? Clearify please? If you HEARD say who or it's you who responsible for such rumors.

To be honest I'm not going to come on here and bash GTM. I won't do it. But with that being said I'm being told this is the same turbo that was used on a subbie. Not trying to start anything.

Chuck33079 · 10-03-2013, 02:42 PM

Quote:

Originally Posted by tower74

To be honest I'm not going to come on here and bash GTM. I won't do it. But with that being said I'm being told this is the same turbo that was used on a subbie. Not trying to start anything.

Unless they've switched to IHI turbos, that can't be the case. Mitsus are common upgrades on Subies. Maybe a slight miscommunication? 16/18/20Gs are fairly common turbos. That's a good part of the reason this kit can hit the price point it does. There's nothing wrong with them, I just prefer ball bearing to journal bearings.

m3chhawk · 10-03-2013, 02:45 PM

Quote:

Originally Posted by Chuck33079

Unless they've switched to IHI turbos, that can't be the case. Mitsus are common upgrades on Subies. Maybe a slight miscommunication? 16/18/20Gs are fairly common turbos. That's a good part of the reason this kit can hit the price point it does. There's nothing wrong with them, I just prefer ball bearing to journal bearings.

A few Impreza's used MHI's in the mid-2000's

Chuck33079 · 10-03-2013, 02:47 PM

Quote:

Originally Posted by m3chhawk

A few Impreza's used MHI's in the mid-2000's

True, I read the comment to mean current Subies. They've been IHI since at least 2002 here.

SPOHN · 10-03-2013, 02:50 PM

Quote:

Originally Posted by Chuck33079

I just prefer ball bearing to journal bearings.

They both have the ups and downs. Journal bearing hold up better for tracking and are far cheaper to rebuild. Ball bearing definitely spool better in all forms but have a shorter life span(how much, don't know). But most times you have to replace the turbo. From what I read. Not sure about rebuilding. Either way cost is higher.

I still like ball bearings myself. I might be upgrading.

m3chhawk · 10-03-2013, 02:55 PM

Quote:

Originally Posted by SPOHN

Ball bearing definitely spool better in all forms but have a shorter life span(how much, don't know).

What are you basing this reliability on?

Ball bearing turbos require less oil flow, lower chance of seal leakage, better shaft damping, no thrust bearings, and overall less wear....

SPOHN · 10-03-2013, 02:59 PM

Quote:

Originally Posted by m3chhawk

What are you basing this reliability on?

Ball bearing turbos require less oil flow, lower chance of seal leakage, better shaft damping, no thrust bearings, and overall less wear....

That I can't recall exactly when I read the article way back. So I'm basing it on that. So maybe I'm out of place. The article could of been old to think of it. I'll look for it. You are correct for the upmost. I'll look for it.

EDIT: there's no solid info besides old timers claiming there JB have lasted as long as there motors and being cheaper to rebuild. So BB FTW.

tower74 · 10-03-2013, 03:24 PM

Quote:

Originally Posted by Chuck33079

Unless they've switched to IHI turbos, that can't be the case. Mitsus are common upgrades on Subies. Maybe a slight miscommunication? 16/18/20Gs are fairly common turbos. That's a good part of the reason this kit can hit the price point it does. There's nothing wrong with them, I just prefer ball bearing to journal bearings.

It could of been. Either way I'm just worried about the quality vs price. I'm sure it will be a great kit for the money but I am wanting something more and something unique.

blackonorange · 10-03-2013, 03:31 PM

I called gtm. They said they've switched their specialty to rotaries. Y'all can take a hike.

blackonorange · 10-03-2013, 03:31 PM

Lets start that rumour

m3chhawk · 10-03-2013, 03:56 PM

Quote:

Originally Posted by SPOHN

So BB FTW.

10-03-2013, 02:23 PM	#1607 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	Listen to him he knows what he's taking about Sent with TapAhoe now Free __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

10-03-2013, 02:23 PM	#1608 (permalink)
Dzel A True Z Fanatic Join Date: May 2011 Location: Midland, TX Posts: 3,884 Drives: 11 370Z PW M6 Rep Power: 23	As do I Sent with TapAhoe now Free __________________ 10secWS6 IF YOU CAN'T SWING IT THEN DON'T BRING IT! Check out Domestic Performance C.C.

10-03-2013, 03:31 PM	#1618 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	I called gtm. They said they've switched their specialty to rotaries. Y'all can take a hike. SPOHN and elperuano like this.

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10-03-2013, 03:31 PM	#1619 (permalink)
blackonorange A True Z Fanatic Join Date: Jul 2011 Location: Saskatchewan Posts: 1,078 Drives: 09 370z Rep Power: 16	Lets start that rumour