Jump to content
SAU Community

Rb25 R34 Gtt Neo Turbocharger

Tangles

By Tangles,
in Engines & Forced Induction

 Share

Recommended Posts

Tangles Grand Master

Tangles

Posted
Posted

As topic says, how can you identify a Neo turbocharger from the R34 GTT Neo, from a R33 GTSt turbocharger?

Ive got a top condition turbo sitting in front of me, meant to be off a R34 and therefore its a Neo turbo & actuator.

Actuator says 28 4 Z06A and ASN 79

Turbo says 45 V 2

back of turbo says 21 U

post-18854-1128658115.jpg

post-18854-1128658256.jpg

Link to comment
https://www.sau.com.au/forums/topic/90242-rb25-r34-gtt-neo-turbocharger/
Share on other sites
Tangles Grand Master

Tangles

Posted
  • Author
Posted

Had a lookover the turbo, getting a feel for its condition. Actually I reckon the turbo is in fantastic condition with harldy any shaftplay whatsoever. Got it from a forum member for a decent price, and was heaps easy to deal with.

The front turbine looks to be plastic, so thats what the Neo is, isnt it?

choyda Veteran

choyda

Posted
Posted

Hi yeah, the compressor wheels are supposedly nylon/plastic based and the R34 turbo's are the same as an R33 model (I think the series 2).

http://www.skylinesaustralia.com/forums/in...=84465&hl=nylon

and

See http://www.skylinesaustralia.com/forums/in...=87783&hl=nylon

Cubes Grand Master

Cubes

Posted
Posted (edited)

The R34 turbo I had in my grubby hands a little while ago had a black nylon compressor wheel and the turbine housing had stamped OP6 in 2 places. The width of the turbine housing behind the first turbine housing to chra bolt located just after the T3 flange was 50mm.

I've attached a pic where to measure.

21U I am 80% sure that is a R33 turbine housing, that is slightly smaller than the R34 turbine housing I had.

Edited by Cubes
RANDY Veteran

RANDY

Posted
Posted

I heard that the R34 GTT turbo is slightly larger, has a plastic/nylon compressor wheel, and is a "wet" ball bearing design.

R33's apparently have a ceramic compressor wheel, and are not ball-bearing?

Feel free to correct me!

Cubes Grand Master

Cubes

Posted
Posted (edited)

All are ball bearing, as all have ceramic turbines.

The R34 also having the 'plastic' compressor wheel.

I think the R33 SII also had a 'plastic' compressor wheel, unsure if it has the larger R34 turbine housing though.

Edited by Cubes
siksII Grand Master

siksII

Posted
Posted
All are ball bearing, as all have ceramic turbines.

The R34 also having the 'plastic' compressor wheel.

I think the R33 SII also had a 'plastic' compressor wheel, unsure if it has the larger R34 turbine housing though.

i checked my old car's turbo, it was a 10/96 model r33 gtst and it definetly had a nylon compressor wheel.

Tangles Grand Master

Tangles

Posted
  • Author
Posted

It all looks the same, thanks for the different info guys, thats been extremely helpful. I'll check it over again tonight.

I'll measure it up to see if I get 50mm thickness, and Im sure it has got OP6 in a couple of places.

On one of those threads (for bass junky's sale of turbo) he's got 45V1, where as mine is stamped 45V2 and the pic from Jmac says 45V2 as well.

Hopefully what Ive got then IS the R34 Neo turbo. Just has a different stamp number on the actuator (large 28 rather than a large 29).

Brendan

Tangles Grand Master

Tangles

Posted
  • Author
Posted

JMAC - that turbo youve got there - definately off the R34 GTT? Thats what mine looks like. Ive got to measure it up tonight.

Boy this is hard to determine! (without taking the current turbo in the engine off!)

siksII Grand Master

siksII

Posted
Posted (edited)
siksII,

What was stamped on the turbine housing? OP6?

Sorry cubes, i honestly dont remember is was about 2 years ago, and the only picture i can find with the turbo in it u can only see the intake side and its too far away to see any detail either :P

But i remember checking the intake blades they were definetly some type of plastic. just by looking u cant really tell but when u touch them u can tell.

my current r33 has stock turbo, but is an earlier model than my old one, this one is an early 96 model(still series 2), i can have a look at the exhaust housing on this one (if i can see it properly!!!) and tell u what it says if you want?

Edited by siksII

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      Cheers. Skyline is back on the menu, can’t get rid of it. It’s like a child you don’t want, or herpes 
    • Dose Pipe Sutututu
      From Japan and back to Europe, my sh*tbox R34 GTT

      By Dose Pipe Sutututu · Posted

      Welcome back brother 
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      I got back to Japan in January and was keen to get back on track as quickly as possible. Europe is god-awful for track accessibility (by comparison), so I picked up a first-gen GT86 in December just to have something I could jump into right away. The Skyline came over in a container this time and landed in early January. It was a bit battered after Europe, though—I refused to do anything beyond essential upkeep while it was over there. The clutch master cylinder gave out, and so did the power steering. I didn’t even bother changing the oil; it was the same stuff that went in just before I left Japan the first time. Naughty. Power steering parts would’ve cost double with shipping and taxes, so knowing I’d be heading back to Japan, I just postponed it and powered through the arm workout. It took a solid three months to get the car back on the road. Registration was a nightmare this time around. There were a bunch of BS fees to navigate, and sourcing parts was a headache. I needed stock seats for shaken, mistakenly blew 34k JPY on some ENR34 seats—which, of course, didn’t fit—then ended up having the car’s technical sheet amended to register it as a two-seater with the Brides. Then there’s the GT86. Amazing car. Does everything I want it to do. Parts are cheap, easy to find, and I don’t care what anyone says—it’s super rewarding to drive. I’ve done a few basic mods: diff ratio, coilovers, discs, pads, seat, etc. It already had a new exhaust manifold and the 180kph limiter removed, so I assume it’s running some kind of map. I’ve just been thrashing it at the track non-stop—mostly Fuji Speedway now, since I need something with higher speed after all that autobahn time. The wheels on the R34 always pissed me off—too big, and it was a nightmare getting tires to fit properly under the arches. So I threw in the towel and bought something that fits better. Looks way cleaner too (at least to me)—less hotboy, less attention-seeking. Still an R34, though. Now for future plans. There are a few things still outstanding with the car. First up, the rear subframe needs an overhaul—that’s priority one. Next, I need to figure out an engine rebuild plan. No timeline yet, but I want to keep it economical—not cutting corners, just not throwing tens of thousands at a mechanic I can barely communicate with. And finally, paint. Plus a bit of tidying up here and there.  
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Nope, needed to clearance under the bar a little with a heat gun, a 1/2" extension as the "clearancer", and big hammer, I was aware of this from the onset, they fit a 2.0 with this intake no problems, but, the 2.5 is around 15mm taller than a 2.0, so "clearancing" was required  It "just" touched when test fitting, now, I have about 10mm of clearance  You cannot see where it was done, and so far, there's no contact when giving it the beans Happy days
    • GoHashiriya
      From Japan and back to Europe, my sh*tbox R34 GTT

      By GoHashiriya · Posted

      It's been a while since I've updated this thread. The last year (and some) has been very hectic. In the second-half of 2024 I took the R34 on a trip through Germany, Italy, France and Switzerland - it was f*cking great. I got a little annoyed with the attention the car was getting around Europe and really didn't drive it that much. I could barely work on the car since I was living in an inner-city apartment (with underground parking). During the trip, the car lost power steering in France - split hose - and I ended up driving around 4,000kms with no power steering.  There were a few Nurburgring trips here and there, but in total the R34 amassed just shy of 7,000kms on European roads. Long story short, I broke up with the reason I was transferred to Europe for and requested to be moved back to Japan. The E90, loved it. It was a sunk cost of around EUR 10,000 and I sold it to a friend for EUR 1,500 just to get rid of it quickly. Trust me, moving countries f*cking sucks and I could not be bothered to be as methodical as I was the first time around.
×
×
  • Create New...