ArtieParty

iTrader: (1)

I can't believe this hasn't been discussed on this forum yet. Looks like its only available in the LARGE turbo size right now, but eventually it will make its way down to one's we could use better.

TurboByGarrett.com - Race Updates




GT-R vs GTX-R






From the site:
The next step in the evolution of the turbocharger is here! Garrett® GTX-R Turbos feature all new compressor wheels with next generation aerodynamics and improved efficiency to deliver wicked performance!

Garrett® GTX-R Turbochargers provide higher flow and greater boost pressure ratios beyond the world-class Garrett GT Series compressor wheels.

* 10%+ Gain in flow over traditional GT compressor wheel designs


* 10%+ Higher pressure ratio compared to traditional GT compressor wheel designs


* Forged, fully machined wheels (billet) for expedited release


* 11 Full-blade design for improved efficiency and ultra quiet operation


* Outline interchangeable with Garrett® GT Series turbos


* Garrett® OE-quality for unbeatable reliability

Garrett GTX-R turbochargers will be available through Garrett® Performance Distributors and Garrett® Master Distributors in early 2010.

Initially available will be:


* GTX4294R


* GTX4202R


* GTX4508R

More models available soon!

Braineack

iTrader: (62)

jtothawhat

iTrader: (7)

Or you can get the PTE Billet turbo ;-)

Which you can get in the smaller sizes, rebuildable and air cooled...plus cheaper.

Savington

iTrader: (31)

oooooooooh. if they make a .86 A/R 3071 I might have a 2871R for sale.

Cococarbine3

iTrader: (1)

Mentioned here! About halfway down in that pile of crap.

https://www.miataturbo.net/forum/t40007/

levnubhin

iTrader: (30)

Whoa, want more power or want to keep same power at less boost?
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ScottFW

iTrader: (4)

As far as I can tell, they're only talking about compressor wheels. And by "outline interchangeable" one might assume these new wheels will fit onto the current CHRAs and into the current housings, and be available as just a wheel upgade for those who don't want to buy whole new turbo.

flier129

iTrader: (7)

Will this include the tial turbine housing?

Savington

iTrader: (31)

More power. I have this sinking feeling that 400whp isn't going to be competitive in RTA Mod next year.

Also, Garrett doesn't sell raw wheels - if anything it'll be a new CHRA or a CHRA exchange.

Faeflora

iTrader: (2)

OOOO holyshizmofuck!



jtothawhat can you tell us some about the comparable PTE product/technology? I tried to browse their turbos on their website but their website is broken.

Faeflora

iTrader: (2)

Did you tear apart your current engine yet to see the damage? Are you going to change up your engine build- different parts etc?

TurboTim

iTrader: (9)

I think people haven't mentioned it here because 1. it's only big turbos so far 2. it will be out of the price range of most people here if/when they do make smaller turbos.

I've read about the PTE billet wheel turbos on the subaru forums. They say is a good thing to be air cooled only? I need to see some sort of logic on that. Otherwise I'd rather have water cooled Garrett CHRA.

gospeed81

iTrader: (51)

And they say there's nothing great for engineers to work on...

10% increases in flow and pressure ratio are RIDICULOUS design improvements....but it looks like the money is in the manufacturing technique here.

Those compressor flow maps say all that needs to be said really. I'm impressed.

fmowry

iTrader: (8)

Blouche Turbo has some new compressor technology on their Garrett CHRAs. They don't list it under their generice Garrett catalog but I don't see why they wouldn't upgrade a turbo with their new wheel. Suby guys are getting good results with these new wheels.

Blouch Turbo Inc. - Turbo, turbochargers and performance turbochargers

Read the poor, full page writeup that scrolls on forever.

Frank

Faeflora

iTrader: (2)

Wow that told me nothing. All proprietary :/

TurboTim

iTrader: (9)

I remember seeing superchargers with impellers that looked like this, back in the early 90's. (Paxton & early Prochargers). Think 50% efficient. Ha.

fmowry

iTrader: (8)

Assuming you were talking about my post it was simply replying to Tims post regarding upgraded compressor wheels. Blouch knows what they're doing.

Call them up. OR go over to NASIOC proven power bragging and check out all the dyno sheets comparing new tech vs old tech. Lots of spool and power data over there.

Frank

240_to_miata

iTrader: (2)

This thread brings back bad memories of the Turbomachinery class I just completed. I cant look at a compressor wheel or volute the same way ever again :( . ew.

jtothawhat

iTrader: (7)

My old GT35R vs. my new PTE 6262 - evolutionm.net

Shows the difference with the new billet wheel compared to the "old technology" GT series. Keep in mind the 6262 is the same size as the GT35R. The 6262 even has a bigger hot-side. A lot of evo guys are running PTE Billet turbos; as well Subie guys and guys who have Grand Nationals.

EDIT: PTE technology uses ceramic coated cartridge bearings, they're 100% rebuildable and require no water lines...