Hks Gt2535

[BOOSTD]

Originally posted by R31Nismoid

I'll be heading down a GT35/40 or something... something a bit smaller possbily.

But then, im chasing 300-350rwkw. And i dont wanna run stupidly high boost. I wanna keep in under 18-20psi.

I'll have the housings/wheels to suit and i should achieve 15psi by around 3500rpm i've been told, which for me is the perfect amount of lag.

350 kw and 15 psi by 3500rpm...... I'll take two! :confused:

[RS500]

Originally posted by USRB25S13

I see why now. So not to many people down there run standered bushing turbo's. Ballbearings are nice but I would rather spend money on other things with my limited budget. So you thing a T3-60 turbo is the way to go? I would be alittle worried about compressor clearance in the S13. I guess I need to get the RB25 in the car first.

USRB,

don't be fooled, there are many people that still run the bush-bearing turbos (inc. myself) as they still perform just as good as the ball-bearing turbos if you choose the correct wheel & housing combination.

i am actually running the same turbo (T04B 60-1 compressor wheel & a T03 sierra exhaust wheel in a A/R .84 split-pulse exhaust housing) on a 2L and it goes crazy for what it is, although it's a tad laggy for my liking as it's a street car.

fyi, it made ~300rwhp on 16-17psi, so there's plenty of flow there cos it just keeps on making power until the 7000rpm rev limiter.

we're hoping to bring it up to ~240-250rwkw (320-330rwhp) with a bit more boost but we'll see how she goes.

If space is a problem, then go for the T04E A/R .60 compressor cover which will still flow decent amount of air and allow and easier fitment.

[R31Nismoid]

Originally posted by BOOSTD

15 psi by 3500rpm...... I'll take two! :confused:

Hey well... that is what i've been quoted from horsepowerinabox (or whatever it is)

So direct the confusion to them. I cant remember what exhaust housing it was with.

But i couldnt see why not. That's what they have told me, knowing it's on an RB25DET.

see here:

http://www.horsepowerinabox.com/HPIAB2/cat...ategory26_1.htm

Look at the GT35/40 and the GT35... ovbiously mine would be the smaller housings.

and for the bigger 35/40, maybe even a wheel change or a special housing.

[R31Nismoid]

Originally posted by RS500

USRB,

don't be fooled, there are many people that still run the bush-bearing turbos (inc. myself) as they still perform just as good as the  ball-bearing turbos if you choose the correct wheel & housing combination.

]

I agree with you there RS500 (as you'd know).

fyi too... my t3/4 has made 203rwkw on only 13psi

So it has a bit left i would think if i went to say.. 17-18psi

We saw a 30kw jump going from 13 --> 15psi, but then i came very close to maxing the injectors. So we wound it back to be safe.

[BOOSTD]

If you can get a hold of the compressor map you will be able to tell the earliest time boost can make 15psi while being inside the surge zone. The smallest A/R available will usually be right on the line. Cam gears will only slightly help lag 100-200rpm.

[¨[TUFR-33]¨]

boostd what quarter mile time have u run with ur VG30 Hybrid turbo?

[Guest INASNT]

I will also be keeping an internal gate with this setup which should be on the car before the end of November all things going well

Good luck with gett anywhere close to 300rwkw with an internal gate. Any turbo specialist will tell u not to bother with an internal gate when chasing that much power. Dont be a tight ass get a 45mm race gate like me. My 600hp rated custom made turbo will be finially ready to bolt up on Monday.

[R31Nismoid]

Originally posted by INASNT

Dont be a tight ass get a 45mm race gate like me.  

Im on a tight budget ya know :shake:

But it's looking external god damn

[Guest INASNT]

I wouldnt waste time on internal gate if u want to run faster than 12.98

[KingGT]

On 10/23/2003 at 2:07 PM, Mick said:

ok i have a big hks fmic, apexi pod, cat back exhaust, plugs are gapped at .8, and ive got a SAFC .. so with these can i bolt a HKS GT2535 turbo and a hks dump pipe on ? its got the hks actuator as well ..

What else do i HAVE to do to my car to run this ?

What else SHOULD i do to it even thoe it will run without it?

I know this is an old post but I am looking into  this turbo now. Is it bolt on to stock piping?

[discopotato03]

HKS GT2535 is getting real long in the tooth nowdays , came out in the very early 1990s . 

In the day the best thing about them was that they were a bolt on manifold and dump wise for an RB20/25DET . It used one of very few turbine housings that had a T3 mounting flange and the same dump pipe flange pattern as the original equipment ball bearing turbos on R32/33/34 RB20s and 25s .

These days most people hi flow the std BB turbos with a different cartridge (centre section inc wheels) and reprofile the std housings to suit slightly larger compressor and turbine wheels .

Either way the GT28 sized turbines are a bit small , and the HKS turbine housing is small AR wise for an RB25 anyway . Later HKS made what they called a "GTRS" which is similar to a GT2535 but with a slightly larger compressor wheel . Probably a better thing but still limiting on a RB25 , mine made 271 RWKW on E70 . An easy slight upgrade if all you want is 250-260 kw and gets rid of the std ceramic turbine issues .

[KingGT]

14 hours ago, discopotato03 said:

HKS GT2535 is getting real long in the tooth nowdays , came out in the very early 1990s . 

In the day the best thing about them was that they were a bolt on manifold and dump wise for an RB20/25DET . It used one of very few turbine housings that had a T3 mounting flange and the same dump pipe flange pattern as the original equipment ball bearing turbos on R32/33/34 RB20s and 25s .

These days most people hi flow the std BB turbos with a different cartridge (centre section inc wheels) and reprofile the std housings to suit slightly larger compressor and turbine wheels .

Either way the GT28 sized turbines are a bit small , and the HKS turbine housing is small AR wise for an RB25 anyway . Later HKS made what they called a "GTRS" which is similar to a GT2535 but with a slightly larger compressor wheel . Probably a better thing but still limiting on a RB25 , mine made 271 RWKW on E70 . An easy slight upgrade if all you want is 250-260 kw and gets rid of the std ceramic turbine issues .

Thank you for replying so quick bro. I’ll definitely look into it I’m excited to build this thing and honestly that is the power range I am looking for. 

[GTSBoy]

12 minutes ago, KingGT said:

I’ll definitely look into it I’m excited to build this thing and honestly that is the power range I am looking for. 

I don't think he was recommending the GTRS. That is also a very very old turbo. I would suggest that he is recommending a high flow.

Where are you located?

[Chris32]

I've been running one for the last 5 odd years - they are a great little turbo. I paid bugger all for mine

My current setup is HKS 2535, Blitz return flow intercooler, 3" exhaust, pump, injectors and e85 - makes 280rwkw at 20psi and has minimal lag. Made 255 running 98 for years before I went to e85

Fitting wise, I couldn't use the stock oil and water lines, I had to get a kit from MTQ - they had this as a off the shelf kit. The stock oil drain also doesn't fit, so I had to buy one from MTQ also

I also had to use a silicone 90 degree elbow off the compressor housing, as mine didn't come with the HKS 90 degree bend. The dump pipe is bolt on, I have a split style that merges a fair way down the dump pipe

I've attached a dyno comparison between the stock turbo making 190kw v the 2535. Now the curve is much the same but another 25kw

 

[hardsteppa]

Yeah but a modern hypergear hiflow is a grand brand new and will make 280rwkw on p98, no need for e85.

[Chris32]

31 minutes ago, hardsteppa said:

Yeah but a modern hypergear hiflow is a grand brand new and will make 280rwkw on p98, no need for e85.

Yep, that's the path I'll most likely end up going - however this is doing the job well at the moment

 

[KingGT]

3 hours ago, GTSBoy said:

I don't think he was recommending the GTRS. That is also a very very old turbo. I would suggest that he is recommending a high flow.

Where are you located?

I’m located in Japan. I’m tying to get somewhere between 340-400. So I’m playing with notion of bolt on exhausts. Disclaimer: I’m new to turbo chargers. Also one of my local shop has the that turbo for sale used for around $400.  I’m trying to make an informed purchase without breaking the bank lol.  

[Chris32]

9 minutes ago, KingGT said:

I’m located in Japan. I’m tying to get somewhere between 340-400. So I’m playing with notion of bolt on exhausts. Disclaimer: I’m new to turbo chargers. Also one of my local shop has the that turbo for sale used for around $400.  I’m trying to make an informed purchase without breaking the bank lol.  

Is it this one? https://www.croooober.com/en/item/cparts/00000132/Turbines/11896643/HKS-Etch-KS-GT2535-56T

[GTSBoy]

2 hours ago, KingGT said:

I’m trying to make an informed purchase without breaking the bank lol.  

Old 2nd hand turbos are a risk. That turbo could be fine, or it could be f**ked. If it's f**ked in a way that you can't tell before you install, then you waste all the money spent on taking the car apart and putting it back together. Doubled, because you have to put the original turbo back on. If it is f**ked in such a way that it dies 10 minutes or 10 weeks down the track, it's the same, but worse, because you could be out on the highway somewhere, stuck in the snow. It's your gamble. You're probably more likely to blow up your original turbo though!

There are many people around the world that can highflow a stocker. If you were in Oz I would have recommended that you contact Hypergear in Melbourne. You could still get a turbo from him, even from Japan. Have a look at their site. There are many options on the site - can be confusing. Just contact them direct if you want to go down that path and need help.

https://hypergearturbos.com/product/nissan-rb25det-turbocharger-standard-high-flow-service/

[Dose Pipe Sutututu]

I rather go put on a Kando turbo (optioned with ball bearing & billet comp wheel) off eBay than a used HKS2535 turbo.