Jump to content
SAU Community

Standard Gtr Garrett Turbos Rb26 Are They Standard

GTR Grey Ghost

By GTR Grey Ghost,
in Engines & Forced Induction

 Share

Recommended Posts

GTR Grey Ghost Enthusiast

GTR Grey Ghost

Posted
Posted

Hi Guys and Gals, bought these turbos second hand however they appear to have different exhaust wheels than that of a mates R34, these have more fins on the exhaust, how can I tell if they are metal or upgraded wheels?

Here are some photos

post-64397-1266139090_thumb.jpg

post-64397-1266139116_thumb.jpg

GTR Grey Ghost Enthusiast

GTR Grey Ghost

Posted
  • Author
Posted
i magnet comes to mind to test for metal...

Cheers mate, did not think of something as simple as a magnet, turns out that the exhaust wheel is definately ceramic as with the nut holding it together, what are your thoughts about fitting these out with metal wheels and 360 degree thrust bearing?

Can I then run a couple pounds boost above the 1 bar currently?

R31Nismoid Grand Master

R31Nismoid

Posted
Posted
Hi there, can you elaborate, "a bugger if non ferrous metal" ?? cheers

non-ferrous metals are not magnetic.

They are just trying to correct me about my magnet comment :)

However, given we are talking turbos (without inconel and so on), the magnet is applicable as stated.

discopotato03 Grand Master

discopotato03

Posted
Posted

A few thoughts based on what the RB26 people tell me .

I understand that the "steel" turbine generally used to flick the ceramic one is the GT28 62T 9 bladed one . Not as fragile as the std ones but nevertheless a slightly larger higher flow capable wheel .

The thing to remember when doing this is that with less resistance to exhaust flow the turbines response gets a little lazier and you don't have the lower oil shear drag advantages of annular contact ball bearings to compensate .

The simple truth is that ball bearing cartridges are more responsive with the same wheel combination but the wheels need to be sensibly sized too .

Durability wise ball bearings win hands down , hardened balls running on hardened races with small point contact areas .

Given a choice I would not put bush bearing turbos on an RB26 , if you damage them the sheer work involved in R&R makes them uneconomic in the long run .

These 707160-9 AKA GTSS turbos I reckon are the ones to use and its good knowing that someone at HKS spent time and money dialing in a specific turbo to be powerful and responsive in a specific car/engine application . They are not a Garrett generic maybe . Smart cookies developed this combination .

It's unfortunate Garrett doesn't appear to want to sell the cartridge used in the 707160-9 turbo because an economic upgrade may have been to have the std turbos housings machined to suit this BB cartridge .

Anyway it looks expensive initially but for a "sorted" turbo that you can buy at a Garrett price I think they are hard to beet , short of losing oil pressure or something foreign smashing the wheels these should live a long and healthy life .

Response cautious people like them and I don't think I've heard anyone say they didn't work better everywhere that the std turbos while being more responsive everywhere as well .

Extra functionality and durability - bargain I reckon .

Cheers A .

GTR Grey Ghost Enthusiast

GTR Grey Ghost

Posted
  • Author
Posted
A few thoughts based on what the RB26 people tell me .

I understand that the "steel" turbine generally used to flick the ceramic one is the GT28 62T 9 bladed one . Not as fragile as the std ones but nevertheless a slightly larger higher flow capable wheel .

The thing to remember when doing this is that with less resistance to exhaust flow the turbines response gets a little lazier and you don't have the lower oil shear drag advantages of annular contact ball bearings to compensate .

The simple truth is that ball bearing cartridges are more responsive with the same wheel combination but the wheels need to be sensibly sized too .

Durability wise ball bearings win hands down , hardened balls running on hardened races with small point contact areas .

Given a choice I would not put bush bearing turbos on an RB26 , if you damage them the sheer work involved in R&R makes them uneconomic in the long run .

These 707160-9 AKA GTSS turbos I reckon are the ones to use and its good knowing that someone at HKS spent time and money dialing in a specific turbo to be powerful and responsive in a specific car/engine application . They are not a Garrett generic maybe . Smart cookies developed this combination .

It's unfortunate Garrett doesn't appear to want to sell the cartridge used in the 707160-9 turbo because an economic upgrade may have been to have the std turbos housings machined to suit this BB cartridge .

Anyway it looks expensive initially but for a "sorted" turbo that you can buy at a Garrett price I think they are hard to beet , short of losing oil pressure or something foreign smashing the wheels these should live a long and healthy life .

Response cautious people like them and I don't think I've heard anyone say they didn't work better everywhere that the std turbos while being more responsive everywhere as well .

Extra functionality and durability - bargain I reckon .

Cheers A .

GTR Grey Ghost Enthusiast

GTR Grey Ghost

Posted
  • Author
Posted

Hi there, thank you for taking the time and providing me a solution with another brand over Garrett, however without disregarding what I have learnt here can you advise me if there is any Garrett Turbo Charger as a direct replacement over standard which would provide minimal lag and alternative over HKS etc The question may be asked why........? the only answer being I want to keep the old girl fairly original (a change for me) as in original brand name parts to achieve a better result and achieve reliability. Turbo's to still be Garrett, what would the model number should I source, appreciate your help, cheers

discopotato03 Grand Master

discopotato03

Posted
Posted (edited)

Grey Ghost the 707160-9 is made by Garrett for HKS , all HKS do is get them from Garrett without the Garrett wastegate actuator and supply their own higher rated ones .

707160-9 , Garrett turbo for a Garrett price .

Why better than std units ? More modern wheels and a lower friction longer lasting bearing system .

http://www.turbobygarrett.com/turbobygarre...9R_707160_9.htm

A .

Edited by discopotato03

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

    • Dose Pipe Sutututu
      R34 GTR running rich and noisy turbo coincidence

      By Dose Pipe Sutututu · Posted

      CAS maybe?
    • silviaz
      Recomended Coolant For Gt T R34

      By silviaz · Posted

      What copper washer do you guys use on the bleeder bolts? The existing one I have I had no idea where to find it in a local store, I did buy some online but that are only 1mm thick whereas my old one is 2mm+ thick and when I put the new washer out and squeeze the top radiator hose I can hear a bit of air but not with the old one. Does this matter? The new one doesn't leak, but the inner diameter is a bit loose whereas the old one threads on the bolt.
    • donut_kng
      R34 GTR running rich and noisy turbo coincidence

      By donut_kng · Posted

      Howdy all, after being out a few weeks ago on a spirited drive in my GTR I have 2 issues that oddly have appeared at the same time. Whilst accelerating quickly through the gears all of a sudden i’ve lost power at the top of third gear (below redline around 6000rpm) for no obvious reason.    From that point onwards the car has been running rich on idle, won’t really rev under load without a ton of black smoke and the odd backfire, and dying as a pull up to a set of lights unless I keep the revs up around 1500rpm. In addition when shutting down the car that same night (I was 10 minutes from home) I noticed one of the turbos was significantly noisy on wind down when shutting off the engine. After letting the car cool down overnight it starts up fine, although once it gets to temp the revs start to creep up and down, the exhaust is darker than it should be and it also sounds like it’s running rich (fat note) I’ve put a new set of plugs in it - no change, the old plugs all seemed OK with two of them being somewhat richer/fueled up than the other 3 with 1 being borderline. I’ve smoked tested the intake system via the front of the Turbos, found a split vacuum hose going to the factory boost gauge sender, which I have since replaced.  Also found another leak on the gasket coming off the rear turbo outlet, have also replaced this. After fixing both of these leaks - still have the running rich issue. I’ve also tried another pair of AFM’s - no change here After pulling off the front turbo intake pipes, there is obvious shaft play in the front turbo, which now hisses loudly on light revvs although I can’t see why this would make the car run funny even under idle. I’m curious to know why it’s running rich before I potentially replace/rebuild turbos. The car is completely stock <50,000kms  other than an exhaust. Oil and coolant are all clear. I haven’t bothered with coil packs as it looks like they won’t be the issue due to condition of the plugs. Any help appreciated as I cry myself to sleep!
    • Rezz
      R34 4 door side skirt identification

      By Rezz · Posted

      No probs at all. I used to love trying to dig up obscure info for those in need where possible going back 20+ years on SAU.  I did have another look and couldn't come up with any closer match. I'm leaning towards those skirts in your first pic are custom fitments, cut down/extended or from another car entirely and modded to fit an R34 sedan. I would've thought someone in Japan had them and taken a photo at some stage over the last 2 decades but there's nothing. Someone out there must know surely.
    • Rezz
      2001 R34DE

      By Rezz · Posted

      Welcome mate. Any pics? Even with a DE I'd be well happy if I had that as a 1st car. 
×
×
  • Create New...