Jump to content
SAU Community

Recommended Posts

  • Replies 66
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

The -5 -6 -7 variations basically tell you which trim size its GT37 compressor has ie -5 was 48 trim , -6 is 52 trim and -7 is 56 trim .

I googled up some stuff that suggested that cartridge might be 48trim version so this is consistent with what you have Disco.

Neg Neg Neg. Disco is right, yet the actual code on this core is -15, not -5. To reiterate the full code is 700177-5015.

As stated I have a 3037 56T at home with the code 700177-5007, and its definitely not a 48 trim lol.

The problem I have at the moment is that Arthur is yet to let the cat out of the bag... There is a second RED GCG tag on the CHRA that reads "3071".... Either way, I am confident that it is a 60mm turbine, HOWEVER... Think it is a total cock up considering Arthur has already confirmed the compressor is 7 full blades and Disco has stated the GT series compressors should have 6 full blades..

All signs point to 700177-0015 , GT30 84T Turbine ....., TO4S 56T - as per the old Disco GT30 thread.

Definitely convinced its a T04S GT30.

7 Blade compressor, big cover, 10 blade rear, garrett tag even says so..

F'd if I know why theres a GCG 3071 tag on it... If it was it would have a 6 blade compressor and a smaller comp cover.

The fake 3076 implies it is the unit Garrett released in place of the 3037 while HKS held the exclusive rights.

Garrett still call the 3037 a 3076 so its easy to get fooled when buying one.. GCG have only recently started labeling the items as "AKA HKS 3037".

If you look up the GT30 threads on this forum you will see infinite talk about "Real 3076R" and "Real 3071R". This is exactly what it is talking about.

so its not excatly a 3037

but its not exactly a 3076

and its not exactly a 3071,

its not exactly a gcg and

its not exactly a garrett

Its not exaclty good but

its also not exactly bad

and to confuse things even more

its going to have a HKS housing

as well but its not exactly a HKS

Talk about multiple personalities :wacko:

so its not excatly a 3037

but its not exactly a 3076

and its not exactly a 3071,

its not exactly a gcg and

its not exactly a garrett

Its not exaclty good but

its also not exactly bad

and to confuse things even more

its going to have a HKS housing

as well but its not exactly a HKS

Talk about multiple personalities :wacko:

o boy its a bitsa lol

I am back home but my notes are in a cupboard next to she who kills if woken up .

I can't remember if there was a cropped turbine variant with the seven bladed compressor but my notes will tell me .

To those pics , the seven bladed wheel yes , I think Hitachi turbine housing , comp cover not sure but could be a sd boss T04E one .

For coolant lines I source SR20 banjo bolts and steel lines from wreckers , cheap and look factory .

A .

definately same CHRA as my unit. visually the blades are identical.

mine has stock nissan 45v4 compressor housing which has been machined out to the fullest extent, 700177-5015 garret chra dual ball-bearing internal-wastegate, with AVO 'skyline 6-bolt' .73AR exhaust housing. Supplied with lines from Adelaide Turbo Services.

I really like mine :)

yeah I really like mine too, it may not be the best out there but it does go hard @ 235kw but i feel its choking which is why i originally considered the AVO housing as well when this HKS popped up a bit cheaper and should be better.

i beleive the backpressure caused by the rear housing is possibly hindering its spooling somewhat so dont think i will get any extra lag, It could be detrimental to its longevity at high boost levels. Plus i wouldnt mind some extra killerwasps ;) wther or not this will work I can only try

turbo was fitted long ago disco with high temp coolant hose that hasnt failed me. I think finding out if its a cropped turbo or not is the big problem here so i know wether or not this new housing will fit, but i may just have to pull the turbo out and measure it up to cover all doubts.

the full code is 700177-5015.

700177-0015 , GT30 84T Turbine ....., TO4S 56T.

My parts listing has that CHRA available as cartridge only, with housings added per application. Critical turbine rotor dimensions are GT30, full size with exducer size 54.98mm. Same as a GT3037R. Compressor inducer dimension is shown as 57.15mm, vs 57.00mm for the 6/12 bladed GT3037R.

So: same turbine, different compressor spec when compared with the GT3037R 56T

comp cover not sure but could be a sd boss T04E one .

That's what it looks like. Not the larger TO4S 0.7A/R.

I scored a HKS housing, i think its my best option and worked out about the same price as all the other options but I have no dump so I might have to invent one

will be interesting to see how much difference going from a crappy .64 to a quality .68 will make

Provided it is a GT30 Pro S housing, it should be a direct fit, and geared to match the turbine. Spool and total flow should surpass the modified Hitachi housing, so as a whole the thing should perform better than what you have. By how much is a difficult question, but it won't do as well as the high speed design GT3037R compressor.

But there will be some dicking around (and costs) associated with making it work. Custom dump (HKS won't sell you one, and the Aust rep will talk to you as if you are a knuckle dragging fool for asking - happened to me), rework the front pipe to suit, and WG actuator bracket to suit.

Poor scavenging and retained heat in combustion chambers due to inefficient turbine combinations can/does hurt power and reliability, so if you were looking at it as a whole then fine. But you'd have to look at the economics and benefits of changing the whole unit out before spending a cent.

Interested to see how things go.

I got a guy happy to fab up a dump,

thinking maybe work around a 3:5 inch bellmouth design then will probably just try run a 3:5 pipe to my cat.

i was going to run a flexi joint in between dump and front is this a good/bad idea?

Its a bit f stuffind around I know but im also interested to see how it goes, I can always change compressor if I get bored agin later .I was keen to stick a gtx comp in front of it but not getting much support there.

To be honest at the planned outputs a 3 inch dump will more than suffice. I've previously posted pics of my 3.5, works a treat but things are reasonably tight, and getting a spanner on to tighten everything while the engine is in the car was a mission. Smaller size won't compromise efficiency, and make life slightly easier.

HKS produced a shell-like design much like the Sydney Opera House. Takes two bends to make one dump, and it works. with that housing/flange setup. Probably not worth deviating from that style.

Cheers Dave, just looks like I bend over another as Dale mentioned..

I think the hardest bit will be cutting the top pipe to fit, but Scottnm35 who does my fab has skills and his own lab so I'm sure it will be a no-brainer for him..

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

    • Back again. I returned to Japan in Jul/Aug to spend time with the car on my birthday and remind myself what all the sacrifice and compromise is for. It happened to line up with the monthly morning meet in Okutama, which I have been wanting to go to for a long time. It's a unique event at a unique spot with really rare, interesting, and quirky cars. It's where all the oldheads and OGs gather. The nighttime scene at DKF certainly has its place and should be experienced if you're into cars, but there's too much bad attention and negativity around it now. IMO the better time is Sunday morning at DKF or Okutama; it's more chill and relaxed. I'm glad I was finally able to go, but not sure it's worth the drive from all the way from Nagoya immediately the day before, unless I was already staying in Tokyo for the days right before the meet, because you have to wake up quite early to make it in time. Funnily enough though I didn't drive the car all that much this trip because it was just too damn hot. While there were zero issues and running temps were nominal and the A/C was strong, RBs already run crazy hot as it is. Sure, it took it all like a champ but something about driving these cars in the ridiculous heat/humidity bothers me and makes me feel like I'm asking too much of it. I'm just me being weird and treating the car like a living thing with feelings; I'm mechanically sympathetic to a fault. Instead I was mainly driving something else around - a KX4(silver) 2001 X-Trail GT, that I acquired in May. There's a few different flavors to choose from with Xs, but visually it's the Nissan version of the Honda CR-V. Mechanically it's a whole different story as this, being the top-trim GT, has an SR20VET mated to a four-speed auto and full-time AWD! It was a very affordable buy in exceptional condition inside and out, with very low mileage...only 48k kms. Most likely it was owned by an older person who kept it garaged and well-maintained, so I'm really happy with how it all worked out. It literally needs zero attention at the moment, albeit except for some minor visual touch-ups. I wanted something quirky, interesting, and practical and for sure it handily delivers on all three of those aspects. I was immediately able to utilize the cargo and passenger capacity to its full extent. It's a lot of fun to drive and is quite punchy through 1st and 2nd. It's very unassuming -in the twisty bits it's a lot more composed than one would think at a glance- and it'll be even better once I get better tires on it(yes, it's an SUV but still a little boat-y for my liking). So...now I have two golden-era Nissans in silver. One sports car and one that does everything else; the perfect two-car solution I think👍 The rest of the trip...I was able to turn my stressed brain off and enjoy it, although I didn't quite get to do as much as I thought. I did some interesting things, met some interesting people, and happened into some interesting situations however, that's all for another post though only if people really want to know. Project-wise, I went back to Mine's again to discuss more plans and am hoping to wrap that up real soon; keep watching this space if that interests you. Additionally, while working in the tormenting sweatbox that is the warehouse, I was able to organize most of the myriad of parts that my friend is storing for me along with the cars, and the 34 has a nice little spot carved out for it: And since it can get so stupid hot in there, that made it all the more easy -after I was standing there looking at the car and said 'f**k it'- to finally remove all the damn gauges that have mostly been an eyesore all this time. Huzzah. The heat basically makes the adhesive backing on the gauge mounts more pliable to work with, so it was far less stressful getting this done. I didn't fully clean it up or chase the wiring though; that will happen once I have the car in closer possession. Another major reason to remove all that stuff is to give people less reasons to get in my car and steal s**t while it's being exported/imported when/if the time comes, which leads us to my next point... ...and that is even though it's time in Japan is technically almost up since it's a November car and the X would be coming in March, I'm still not entirely sure where my life and career is headed; I don't really know what the future looks like and where I'm going to end up. I feel there's a great deal of uncertainty with me and as a result of that, it feels like I'm at a crossroads moreso now than any point in my life thus far and there are some choices I need to make. Yes, I've had some years to consider things and prepare myself, however too much has happened in that time to maintain confidence and everything feels so up in the air; tenuous one might say. Simply put, there's just too much nonsense going on right now from multiple vectors. Admittedly, I'm struggling to stay in the game and keep my eyes on the prize. So much so in fact, that very recently I came the closest I ever have before to calling it quits outright; selling everything and moving on and not looking back. The astute among you will pick up on key subtext within this paragraph. In the meantime I've still managed to slowly acquire some final bits for the car, but it feels nice knowing there's not much left to get and I'm almost across that finish line; I have almost everything I'll ever want for my interpretation and expression on what it is I think an R34 should be. 'til later.
    • Thanks for that, hadn’t used my brain enough to think about that. 
    • Also playing with fire if they start to flow more air down low than what the stock twins can. It's not even up top you need to worry, it can be at 3000rpm and part throttle and it's getting way more flow than it should.
    • Any G40/1000 or G40/1250 results out there?  
    • You still want a proper tune on the stock ECU though. Stock tune + stock ECU with GT-SS/-9s is probably playing with fire if you're running more than stock airflow/power.
×
×
  • Create New...