Jump to content
SAU Community

Recommended Posts

Your taking the R all the way to Spa next year???

I don't own a filthy GTR. GTSt FOR LIFE, just not with an RB20 anymore :)

You and Paul love talking about your cars but I don't see any racing!


10 years of use-abuse means the past few years lots of stuff has needed replacing and track time has been lean. Where were you between 2000-2011? :) Have you even gone quicker then a 2008 RB20 time ? :)

So nobody has a proper GTX2860 result yet, only modded -5 housings?

  • 1 month later...

Seems like they already have a Garrett GTX2860R bolt on kit on ebay for sale! But seems very expensive thou

http://www.ebay.ca/itm/Garrett-GTX2860R-400HP-Upgrade-Turbo-for-Nissan-Skyline-RB26DETT-R32-R33-R34-/250813255556

  • 1 month later...

So after looking into putting the 63mm wheels into my -5's i sent am email to GCG to see what their opinion on this combo would be like, and here is their response for those interested.

"We have had customer feedback in regards to this particular set up and it isn't positive, apparently they surge severely if fitted with with standard style housings on both ends unfortunately. Garrett do not do any GTX upgrades for the RB26 set up so we are currently working on a solution to this, pretty soon we will be bringing out our own range of custom stainless steel housings in 0.86a/r to replace the restrictive Garrett 0.64a/r housings (wot work with the GTX28R range), but this won't be ready until later this year.
The other thing as well, the surge slotted comp housings would have to be utilized with this set up so a custom intake would be required."

interesting post. thank you. guess i will stick to the 60mm billet haha :)

  • 2 months later...
  • 3 weeks later...

I've seen the kit GCG are now doing for the GTX range

They looked very neat and makes it very simple to bolt GTX 28's up.

I was thinking about doing GTX2860's and E85 to see if I can make 450kw.

Cheers

Any more info on their kit? or link to it?

Looking to upgrade my 5s (2.8) to GTX2860r variety but do not want the disappointment Sean had with the ported shrouds.

I see there are quite a few guys with re-profiled -5 comp hsgs for 2863s and no one is reporting any noticeable surge.

So I am fairly certain there will be no surge with RB comp hsgs on the gtx2860 as the wheel is pumping less at that PR (max boost start point) and surge line is further to the left than the 63s anyway.

ATP sell RB Twin style comp hsgs for the 63 and 67 they did advertise them also for the 60 but removed it after I ordered one only to be informed it was an error.

Because the 60 inducer is only 45.7mm and -5 inducer is 47.2mm then maybe the Garrett

pre machined casting is already too big to machine for 60s. Drat!

My car is putting down 545Hp at all wheels (4wd dynapack) and peak torque is around 4500rpm.

I want that peak around 3800rpm using 60s the 63s obviously more powerful but I dont need it.

So what I was planning on doing was boring out a 63 RB hsg from ATP (already have it) and shrinking a 6061 ally sleeve in there and re-profile it to suit.

Looked all around the web but cannot find any instances of this kind of mod.

Anyone heard of this kind of mod.

  • 1 month later...

Looks like I might have a failed HKS 2530. Will confirm soon enough though. We are only 50% sure.

Anyway: If I have to replace them, I want something a touch more responsive - Would sticking the GTX2860 between the HKS2530 housings do the job (machined front covers of course)? I'm not too worried about top end. Car is mostly for street / track work. It's a stock RB26 at the moment, set up for E85.

Otherwise, I'll just throw in a pair of new GT2860 cores.

I've read the entire thread but people seem to be talking more about the GTX2863.

Sorry if I have missed something .

Edited by The Mafia

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



  • Similar Content

  • Latest Posts

    • Hi GTSBoy, Excuse my ignorance but what does a "Bad" Knee point mean ? 
    • HFM BM57 has a "bad" knee point, IIRC. It's not the same thing as the later R chassis MC.
    • The ATTESSA is functionally identical to R34; there were a bunch of JDM models that continued ATTESSA including Fuga/Q70, Skyline/Q50, Cima etc as an option. All with Auto only and I think mostly for snow regions. AFAIK there were no AWD VR30DDTT sold in Australia - it is on my to do list to check regs for racing a LHD car in Targa/ATR/AASA/CAMS events because if I can get the auto to work it would be interesting to run a 4wd car The Ecuteck TCM tuning is the same model as their ECU tuning, they already have it for R35 and Dose's favourite, BMW. You buy "points" to allow your computer to be tuned, buy either a bluetooth (phone app) or bluetooth+USB+Key (phone and PC) dongle, and pay for a tune that will be locked to your tuner ( ). You can also access the tuning software yourself but 1. it is mega expensive and 2. these computers have a billion parameters that intersect, so how could you ever spend enough time on it to get a decent result.
    • Or, is it a case of what it is like owning an R series Skyline? NFI what the previous owner has done or fiddled with... Ha ha ha After reading through this thread, I went on a bit of a research about the Q50/Q60. Now I'm quite intrigued by them! Is the AWD in them more like a WRX where it's always AWD, or is it more like the ATTESSA in the GTRs? By the sound of this TCU tuning, this sounds like a case of someone has made some real software for it, and you just need the right piece of hardware, and then you license that specific vehicle/TCU. Or is this a case of the software will be really expensive so only a few tuners have it, and you still have to pay a license per vehicle?
    • By popular demand.. it was a coil. Got my hands on 1 new OEM coil, replaced with the one that made the less noise difference when I unplugged it while the car was running and started the car up. No stutter and the engine light was gone. I guess I’ll buy the other 5 they have lol
×
×
  • Create New...