Jump to content
SAU Community

Recommended Posts

How different would the results really be from an Rb25?? I'm going to be playing with an RB25DET Neo Powered R32 GTS4 soon, will be getting either a GT3076R, GTX3076R or T67-25G ... depending on where the owner goes with that. I'm quite interested to see how that goes.

blast from the past. I never did it but the idea still hangs with me. I might do it one day. thinking about a small-ish borg warner EFR TS/twin gate set-up. could be nice.

since this thread I built my GTR with GTSS, another one with 2530s, and yet another one with 2530s so still rocking twins. current GTR is jun 2.7 engine with 2530s but thinking about putting it onto E85 now and wind up the wick a bit.

  • 2 weeks later...

Hey there,

New to the forum and wanted some advice on SST upgrade for R32 GTR.

Built motor (rods/pistons/cams/cam gears all the usual stuff)

Basically just looking for response (only 260 poncams)

What's your opinions on HKS 3037?

Cheers

Looking at the rb25 sticky, the hks 3037 is making 280-300kw, is that acceptable? A built rb26 is probably better than the rb25s in the sticky thread. There are established good response, better power twin low mounts, set ups well described. I like the simplicity of a single setup.

Edited by WHITE gtt

Hey Rich,

My GTR initially had an Apexi IHI RX-6 TCW77P25. Stock RB26 with a couple of cams. Little baby, could only make 400hp atw no matter how much boost I threw at it. left it on 19psi, super responsive, full boost well under 4k ran heaps of mid 11s at the drags. (ps if anyone wants it - it's sat in the garage at home with manifold, wastegate setup etc). Upgraded to a GT35R and overcame the tempation to go to the T04z and the like. Useable power > *

A new GTX3076 or whatever they are would be wicked.

Mick

Looking at the rb25 sticky, the hks 3037 is making 280-300kw, is that acceptable? A built rb26 is probably better than the rb25s in the sticky thread. There are established good response, better power twin low mounts, set ups well described. I like the simplicity of a single setup.

still getting used to posting and such. Sorry about that.

Yeh 300kw would be acceptable. Just looking for a nice responsive thing that you don't have to wring its neck evrerywhere

Edited by Whiskey Ghost
  • 3 years later...

Hey guys, been doing some reading and found this old old post.

Can't find to much more on the subject.

I am currently setting up a small turbo on my r32 gtr, after putting n1 turbos on and hating them I decided I was never going through the twin turbo shit fight again, and I couldn't see why one turbo, wouldn't spool up better than two that are similar size combined, you have less mass to turn, in one turbo, and less bearings, less friction, maybe I'm wrong, but I couldn't find a straight answer anywhere so I decided I needed to do it myself.

I have a STD engine so won't be chasing big power, so I decided I would go for response instead, I have a very low budget and have done all the work myself.

The turbo I chose was a kinugawa tdo6sl2-20g ($1000)

This is t3, internally gated and has a 8cm rear housing. It came with all the gaskets and hoses I needed to fit it to the engine, didn't have to buy another thing in that area. Have heard alot about these turbos and really wanted to give one a go.

This is bolted to a ebay manifold ($350), and did some custom intake piping from some silicone joiners off eBay and some alloy pipe laying around at home ($50)

For the dump pipe, I used 3 inch flexible stainless truck exhaust ($60), down to the cat, this is welded onto a vband flange which came with the turbo

I know some of you would be cringing by now at this set up, but I'm into trying somthing Different.

I brought a second hand adaptronic e1280s off my mate for $500 and wired in a map sensor ($60)

The set up hasn't run yet, just in the final stages of setting up the adaptronic, I have heard of people making 300kw with these turbos on sr20s and rb25s, so I don't see why the 26 won't do it, and it should have very little lag which will make it awesome to drive and look after my STD engine, not having to rev it hard to get ssomewhere.

Or it might just not work... Haha we'll soon find out.

Let me know your thoughts guys

They were r34 gtr n1s

Were never dynoed, they would have been alot better if tuned properly and stuff but I just wanted single for the ease of working on the car.

The n1s got on boost at about 4-4500 which I was not stoked with.

I've done a number of tests based on small singles fitted to a unopened GTR engine. You can find more details on my thread.

Be brief. I've fitted one of my TD06SL205 Turbocharger on my GTR externally gated in 10cm rear. It runs off a TD06L2 turbine, with a compressor that is15% more efficient then a standard 20G without adding lag. This is a proven turbocharger working with SR20 and Rb25 engines.

On Rb26, because the head flows so well, the extra rev and engine capacity, this turbo can not keep up with set boost once the engines revs over 5000RPM. Stronger external gate spring only caused higher boost spike in mid range while made no changes up top. Been the Kando's standard TD06L2-20G, your boost tapper should be even worse.

boost.jpg

Best power was 308awkws pump 98 fuel, Vs factory Twin T25s
308rwkw.jpg

On E85 the best run was 367awkws, and averaging of 350rwkws.

atr43ss25alpha367rwkwe85.jpg

Goal was responsive 400awkws, data from the following evaluations shown that I could never get that. Lead me thinking twice of why Nissan have chosen to twin turbocharge this engine.

Anyway, I don't usually stop till I get there, so scraped every thing I knew about Rb25det and start fresh, many weeks of modeling, testing and $$$$$ later (Check details on my thread), it worked.

ATR45SAT / AKA ATR43G4/SAT. 411awkws @ 24psi, E85 Fuel

411rwkwpower.jpg

Power and Response Vs Stock T25s

powervsstock2.JPG

boostvsstock.jpg

This turbocharger has been left on my car since.

Ps. It doesn't cost much more then what you've paid. List your TD0620G back on Ebay and fit this instead.

  • Like 1

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

    • Nah that is not actually a lot. Just painting my GTR frontend and the little bits to make sideskirts/nismo flare pieces work correctly/fit on the sedan/mount up correctly came to about $7000. Is it a lot? Sure. None of this is economical. Economy would be shelling the car and buying a 2010 Corolla to commute in. The perspective of all of this is different.
    • I have the 2025 build re003s’ on my 06 XT Forester Turbo and I quite rate them for street wet and dry
    • I don't see any issues here. I've been saying all along this is a big job, the price reflects that.  When the car comes back perfect I'm sure it will feel like money well spent. 
    • Remember, take original quote. Double it. Then add a bit more. It's how any project goes.
    • So, I started this repair and got as far as "fixing" the holes with some fibreglass. God all those years working on boats came back quickly. I decided I'd reach out to some rust guys just to see what they would say about it. I came across a guy about 40 mins away and went to see him. He said the windscreen needs to come out, that there might be some more bits around the windscreen and he'd quote them at the time. But his quote was $300 to remove and replace windscreen and $3k for the damage he can see. He said he could respray the roof for $1200 and the bonnet for another $800 (somebody has previously rattle canned it, its horrendous). This is $5300 + any small additional bits. It's a lot, I get that and the name of one of my fave youtube channels 'Not Economically Viable' comes to mind.  I'm not being financially rational, but I've taken him up on the quote. He's opening a new shop in November with more room, so we're waiting for that. I'll leave the currently missing headliner out until then. I'm looking forward to it being fixed and having the paint looking nice again (lots of clear coat issues on the roof too). / flame suit on.
×
×
  • Create New...