JohnBradley

iTrader: (30)

GTXR aero is my main concern regardless of issues we had with the TiAl. It is a billet version of an older Garrett design that dates back to the early 80s. We might try it in a different housing, not sure since it all depends on if we can sell it.

I would like to say though that an off the shelf 4508 did make 1118whp in the same housing at 46psi on Import so I wouldnt think the 1.0 a/r is necessarily is choking it. Most of the 1.15 and 1.28 are divided housings from what I have seen but if its not being used a twin scroll it still flows about like a single.

Aaron

mrboost05

iTrader: (25)

I was told they changed there covers on the GTXR42R shortly after they were released they seem to have good luck with them on the supra/honda fourms but mention the same problems with the tial housing.

spdracerut

iTrader: (2)

Um. The GTX aero was designed in 2007.

ScorpionT

iTrader: (1)

Actually, the full height blade design goes back to the 60's with the Rayjay turbos. Because the design is a little similar doesnt mean performance will be even close. When you compare an old Mitsu compressor (Garrett based) design to a current FP or Precision design, you will see the splitter blades. Performance will be vastly different with the newer billet compressor, even though they may look a little similar.

If you guys went from a GT to a GTX with a 1.00, I wouldnt expect to see any serious gains. You really need to run a bigger housing to see the potential from the new compressor, no question about it.

Read above.

GotWheelHop

iTrader: (39)

I spoke with some of the Garrett guys last week at SEMA. Can't wait to see if they back the hype up with results.

03whitegsr

iTrader: (8)

Considering the price point (MSRP anyway) and feature set, I think Garrett brought a pickle to a gun fight this year against BW.

We shall see though.

HHIX

sorry for the stupid question but i treid to "read" the copressor maps thy offer ....

but can only see that they offer more flow up top so does it mean they wont spool faster ?

i would buy a gtx3076 if its spools faster thn my normal gt3076... more power is not my goal.

ScorpionT

iTrader: (1)

Get a GTX3071R. It will make power like a GT3076R but spool quicker.

bimmer8181

iTrader: (1)

The spool should be very similar because the exducer is the same size. The compressor wheel is slightly smaller. I would go with gtx3076.

n2oiroc

iTrader: (33)

perrin has been testing them and posting the results on nasioc.

240Z TwinTurbo

iTrader: (25)

I have the GTX3076r being shipped and should arrive next week. I kept my coated 0.82 a/r turbine housing for the setup, but have not decided how to proceed. I have a RevHard manifold and Tial 38mm, but have been debating the tial turbine housing and just building a one off 321SS log style manifold.

morte2257

whens the bolt on gtx3076 coming for the evo x.....i want!!!

ScorpionT

iTrader: (1)

The exducer on the GTX3071R is smaller than the GT3076R by 5mm. You also cant compare spool strictly looking at inducer or exducer measurements. Weight (inertia) also plays a part, with the billet wheels being lighter. Ive driven a couple cars that went from the GT3076R to GTX3071R (just recently) and there was a noticeable difference.

You should have bought mine. Dont use a log manifold, no sense getting an efficient turbo and building a horrible log. Get a nice tubular manifold.

240Z TwinTurbo

iTrader: (25)

Your price was good, but I get a much better deal

I am only concerned with tubular if I were to go twin scroll. Otherwise, there is no issue with a properly designed quasi log manifold. BTW, I use the word LOG loosely.

ScorpionT

iTrader: (1)

Cant argue with that logic!

A quasi log wouldnt be bad, as long as its not a true log. A tubular will still perform much better... remember the GTX flows like a 35R