New Garrett GTW Turbo

[Freddy]

Garrett just released at SEMA, a new entry level turbo. Not much info out there. If you find any information share with your fellow Zilviains.

Garrett Facebook Page

[Dboyizmlg]

Looks like a GTX wheel.

[PoorMans180SX]

Maybe they've finally decided to match their compressors to their turbines.

[RurouniMidnight]

Also seems to be a new GTX2871r

[Dboyizmlg]

Lol, new GTX2871r!

I just bought my GT a few weeks ago, DAMM.
I want this GTX!

[aga]

[nolandavid]

More power yes!! upgrade 2871r for me!!

[angel mkiv]

What the actual fuck! I just got the 2867r!

[aga]

Originally Posted by angel mkiv

What the actual fuck! I just got the 2867r!

i still think the 2867 will be a better all around turbo...

why does the box say AR 0.00 on the turbine side?

[l adam l]

Originally Posted by aga

i still think the 2867 will be a better all around turbo...

why does the box say AR 0.00 on the turbine side?

it says it's sold without turbine housing

[aga]

Originally Posted by l adam l

it says it's sold without turbine housing

hmm so the 0.64 turbine from my GT2871R will fit, right? damn this is so tempting.

[cotbu]

The actual gt2871r upgrade, lady's and gents!

Sent from my Slightly Tuned Note 4!!!

[PoorMans180SX]

Originally Posted by aga

i still think the 2867 will be a better all around turbo...

why does the box say AR 0.00 on the turbine side?

It is a better all around turbo.

Silly people.

[Driftwire]

TURBO UPGRADESS!!!! Gonna have one happy KA soon, this shes bored of this T25

[lg54]

so this GTX2871 will have faster spool and make more power than the normal GT2871?

[bshotts]

Originally Posted by RurouniMidnight

Also seems to be a new GTX2871r

"Dual Cermanic Ball Bearing" hahaha got a chuckle outta me. Cant believe their marketing material has a typo....at SEMA to boot. Of course that's the one thing I pick on from an otherwise awesome product intro from Garrett.

If spool time and cost are same to GTX2867R I can see this being the new 350-450whp go to turbo for T28 setup guys.

[KoukiMonsta]

Originally Posted by PoorMans180SX

It is a better all around turbo.

Originally Posted by lg54

so this GTX2871 will have faster spool and make more power than the normal GT2871?

I will 'assume' yes..primarily on the point of spool time. Excited for more info...as i planned on 2867 setup for next year. this makes it interesting.

[PoorMans180SX]

Originally Posted by lg54

so this GTX2871 will have faster spool and make more power than the normal GT2871?

The 2867 is a better turbo.

When will this billet wheel = faster spool myth die?

[RalliartRsX]

Originally Posted by lg54

so this GTX2871 will have faster spool and make more power than the normal GT2871?

The GTX wheel is not necessarily about more "power", but more spool and transient response.

So if you are buying into a GTX for overall power, you may be disappointed.

[lg54]

Originally Posted by RalliartRsX

The GTX wheel is not necessarily about more "power", but more spool and transient response.

So if you are buying into a GTX for overall power, you may be disappointed.

yeah sure, but i dont want anything over 400rwhp. Better response and spool time with 370-400hp sounds interesting.

[5280VertDET]

Originally Posted by PoorMans180SX

The 2867 is a better turbo.

When will this billet wheel = faster spool myth die?

Go on... Interested in this myth busting...

[RalliartRsX]

Originally Posted by lg54

yeah sure, but i dont want anything over 400rwhp. Better response and spool time with 370-400hp sounds interesting.

Understood. But any of the T2 frame turbos biggee than a disco will do, some more than others (GTX67, HTA, 2871R, etc)

[Dboyizmlg]

Originally Posted by lg54

yeah sure, but i dont want anything over 400rwhp. Better response and spool time with 370-400hp sounds interesting.

A bit off topic, but hey it sounds like you need the GTX2867r.

I seen your posts on the gt2871r thread, by the looks of things it sounds to me that your choice of turbo is the GTX2867r.

[PoorMans180SX]

Originally Posted by RalliartRsX

The GTX wheel is not necessarily about more "power", but more spool and transient response.

So if you are buying into a GTX for overall power, you may be disappointed.

Not true. The GTX wheel is designed to be superior in flow to the standard cast wheels. I'm 90% sure the wheel is HEAVIER than the standard cast wheels, and thus doesn't offer any spool increase.

Originally Posted by 5280VertDET

Go on... Interested in this myth busting...

Precision is who I blame for spouting off all this nonsense about billet wheels "spooling faster". It simply doesn't happen. Billet wheels are often heavier than the cast wheels they replace. They do have more aggressive aero, possibly helping them generate airflow with less shaft speed than the cast wheel, this WILL however, become a trade off at the top end. I guarantee you if you compare shaft speeds there would be very little difference in a billet vs. cast wheel comparison as far as time-to-speed.

Originally Posted by RalliartRsX

Understood. But any of the T2 frame turbos biggee than a disco will do, some more than others (GTX67, HTA, 2871R, etc)

YUP.

The GT2867 has a better compressor/turbine match than the 2871R, and thus will offer nearly the same power with less lag.

Some of you guys must think the GTX3076R is a good turbo.

[RalliartRsX]

Originally Posted by PoorMans180SX

Not true. The GTX wheel is designed to be superior in flow to the standard cast wheels. I'm 90% sure the wheel is HEAVIER than the standard cast wheels, and thus doesn't offer any spool increase.

.

That is NOT what alot of the plots I am seeing is dictating. The garrett is similar in ways of the EFR in that they will make more power, but at a higher pressure ratio. Yes surperios, but at the cost of more boost......

As far as weight is concerned, I have not weighed them personally or seen the weights posted. But to be fair, I have not researched the weights either.

http://www.learntotune.com/discussio...ett-gtx-vs-gt/

http://turbosix.blogspot.com/2012/12...s-gt-3076.html

Dyno Graphs of a DIRECT comparison! GTX on the left of the graph







A Garrett GTX was my choice initially until I get an inside line on a EFR. 6258. Currently installed on a SR and loving it!

[PoorMans180SX]

And that, my friend, is evidence of the GTX's increased efficiency at moving air at low shaft speeds. Maybe I'm delving too deep into the semantics of "spool up" here, but I highly doubt there is a difference in shaft speed given the rest of the powerband is nearly identical. A truly "faster spooling" turbo would increase the entire powerband. GTX's do not like high PR's, The compressor map is not wide enough and the turbines are too small (except on 3067 and 3576). I have personally experienced this on several cars that have gone through the shop.

[RalliartRsX]

Originally Posted by PoorMans180SX

And that, my friend, is evidence of the GTX's increased efficiency at moving air at low shaft speeds. Maybe I'm delving too deep into the semantics of "spool up" here, but I highly doubt there is a difference in shaft speed given the rest of the powerband is nearly identical. A truly "faster spooling" turbo would increase the entire powerband. GTX's do not like high PR's, The compressor map is not wide enough and the turbines are too small (except on 3067 and 3576). I have personally experienced this on several cars that have gone through the shop.

1) All semantics. In my opinion, for me, spoolup is simply "the time for the turbo to reach a set compressor speed/flow rate/boost level". If the turbo gets to this specified point faster, to me the spoolup is better . Simple.

However, I do understand the more efficient nature of the GTX wheel, but overall, as far as I am concerned, the idea is not necessarily more power, but better transient, boost recovery and spoolup characteristic. As the graph below depicts, and my experience, the wheel is capable of flowing more at lower wheel speeds and is able to attain the set flow limit sooner, but overall to me, that is the characteristic of better "spoolup" time

As far as a faster spooling turbo having more power, in terms of flow rate EDIT: AT SPECIFIED turbo speeds, YES. In terms of time spent getting to a specified flow rate (if it is a specified flow rate, then you cannot have more flow rate in the same sense and have the units of measure be the same) at a quicker rate, then NO.

My other graph which didn't load, so below is it



2) The idea behind my statement is not that GT turbos like a high PR (my mistake in comparing it to a EFR), but to make more power than a similar cast wheel variant, you need more boost.

3) To me it sounds like you are more hung up with the terrible work Garrett did of matching up the wheels as compared to the wheel design itself

[PoorMans180SX]

Originally Posted by RalliartRsX

3) To me it sounds like you are more hung up with the terrible work Garrett did of matching up the wheels as compared to the wheel design itself

Yes, yes I am, hahahha. The GTX wheel is not a bad design at all. Turbos like the 3067 and 3576 do their jobs admirably.

I would still prefer a BorgWarner though. They seem to have a better collection of turbos that make sense in a performance application, though they are a few that seem to miss the mark from them as well.

They also continue to update their "base" Airwerks models, which is awesome.

[RalliartRsX]

Packaging is the BIGGEST issue with the EFR........

I have a writeup elsewhere on my install woes with the EFR 6258 in bottom mount variant and hated every single moment of the install.......

Top Mount EFR with a FR mani/downpipe is the way to go hands down!

Sorry to derail from the Garrett

[Matej]

BorgWarner needs to offer an SR20-flanged turbine housing option for their T2 turbos.