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New Garrett Gtx2860R / 2863R / 2867R

Gav

By Gav,
in Engines & Forced Induction

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fatz
fatz

This thread is now delivering f**k yea Can we have a dyno graph with a single, twins and a third axis for bench press weigh for comparison

Dose Pipe Sutututu
Dose Pipe Sutututu

Twins on a RB will always be shit, all of a sudden the Muricans and Canadians are experts with RBs.

NissanForLife
NissanForLife

Look guys, I'm the guy who had the white 34 with 2863's in -5 housings, it made 489kwatw but at 33psi. It was a mental track car, I actually never got a proper time with that power figure on new tyres

Posted Images

Chris32R Proficient

Chris32R

Posted
Posted (edited)

Well I for one am very impressed. Thats a fantastic power curve.

Its a prick of a job, but i have done it on my hks2530s, turbonetics make an oem size dual port actuator (part is 30326) that fits the hks actuator bracket. Need 1/4 UNF 80mm actuator rods from gcg for it to fit, and a 4 port mac valve but its a good option to keep the gate shut.

Are your gates creeping open at high exhaust manifold pressures or are the turbines just falling over?

I guess at those flow rates your post-turbine exhaust pressure becomes quite significant.

2c2aa82fd400ccb163ff82bdacf6c524.jpg

Is the turbonetics actuator any better than the ones hks offer? Edited by Chris32R
burn4005 Proficient

burn4005

Posted
Posted (edited)

I was going to buy those turbonetics gates but I heard they clash and there's no room for them down there.

I've got them on an R34 and they fit fine, tight to get them on there with the turbos mounted and in the car, but possible. haven't had huge boost through them yet as we we having misfire issues. had to use the HKS actuator bracket as it holds the actuator with two bolts, so the turbonetics fits straight in, whereas the garret actuators are welded to their brackets.

Is the turbonetics actuator any better than the ones hks offer?

I didn't realise HKS did a dual port actuator? do they make one? the only reason I went the turbonetics ones is they were the only dual port stock looking gate on the market (that I could find)

the advantage of dual port is low preload, so the diaphram can respond faster. it uses MAP pressure to press the wastegate closed when the boost control solenoid is active.

so my gate is set to 8psi preload, so you can either go a single port 25psi preload actuator, and it will hold 25psi worth of pressure, or a dual port actuator at 8psi preload will hold it shut with 33psi of pressure. the more preload, the greater the offset.

also means I can run 8psi in Girlfriend/Valet mode, 22psi in Petrol mode and 28psi in E85 mode.

Edited by burn4005
Dose Pipe Sutututu Grand Master

Dose Pipe Sutututu

Posted
Posted

can you fit turbosmart ones down there?

They recently borrowed an entire turbo (GTX2867 for ref) off one of the cars I've been working on to make up a bracket to fit the T28 housing to a turbosmart dual port

#thankstraklife

mr skidz Veteran

mr skidz

Posted
Posted

The same power has been made with 63's in gtx housings at the same boost.

I was talking about in regards to the turbonetics wastegate option for the low mounts they said it wouldn't fit on those housings and fit
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burn4005 Proficient

burn4005

Posted
Posted (edited)

I was talking about in regards to the turbonetics wastegate option for the low mounts they said it wouldn't fit on those housings and fit

ah which compressor cover are you using?.. I am using HKS2530 turbos. it may be that the bolt pattern on the back side of the GTX compressor housings are a larger radius from the centre, so the alignment wouldn't work, as that is where the actuator bracket attaches.

not sure if they are or not. but if people are putting -5 comp covers on a GTX core, then I dont think they would be different unless some machining of backplate to comp cover is required to fit the compressor cover to the core.

Edited by burn4005
Ryan1200 Proficient

Ryan1200

Posted
Posted

they're the all-in-one R34 Coils so no igniter required.

if healthy OEM coils can handle 660awhp@ 28+ psi in the car above, that's good enough for me. I'll just get a new set, but if i need to go beefier I'd be interested to hear what Ryan1200 and His mate have done.

Standard setup besides a set of Splitfire coil packs.

sneakey pete Grand Master

sneakey pete

Posted
Posted

I know this, hence why I said I would grind out stock housings to suit.

It's not exactly easy, you'd be better just getting a set of -9 or stock front covers like I did for my gtx2860s.

I'm not sure the gain will justify it, but I am sure there will be a small gain

Piggaz Grand Master

Piggaz

Posted
Posted

It's not exactly easy, you'd be better just getting a set of -9 or stock front covers like I did for my gtx2860s.

I'm not sure the gain will justify it, but I am sure there will be a small gain

How long are you away from a result, Pete?

Ryan1200 Proficient

Ryan1200

Posted
Posted

It's not exactly easy, you'd be better just getting a set of -9 or stock front covers like I did for my gtx2860s.

I'm not sure the gain will justify it, but I am sure there will be a small gain

If anyone needs custom turbo work done the guy who owns the cars I posted results on works for MTQ in Brisbane and will happily make it happen. Ask for Rossco.

sneakey pete Grand Master

sneakey pete

Posted
Posted

He did mine

How long are you away from a result, Pete?

Still a while, have not yet got engine or update on it, shall send the builder a message tommorow to see about that actually.

Considering Getting a shop to put it in and getting it running to save time and prevent me making cockups

  • 2 weeks later...

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