Jump to content
SAU Community

Recommended Posts

upgrading my turbo soon, need your help guys!

I've got 2 options (HKS turbos):

GTRS

or

GT2835

what im after from the car would be for occasional track use, will not be changing internals (yet) so i wont go over that limit... but may also change internals some time in the future (wont be anytime soon). Even if i was wanting more power, it probably wont be more than 350rwkw.

thanks guys!

Link to comment
https://www.sau.com.au/forums/topic/75560-turbos-turbos-turbos/
Share on other sites

  • Replies 59
  • Created
  • Last Reply

Top Posters In This Topic

LOL i said no more than 35rwkw... which means it would most proly be less than that and it wont be done anytime soon aswell. im currently not planning on changin internals, but i would like to leave the option of going further just incase in the future i want more lol

280rwkw sounds reasonable lol

Ammm AFAIK,

There basically the same turbo dude.

The GTRS was released later and has basically the same wheels as the GT2835. The only difference was the GTRS has a smaller compressor cover. Designed to be used as a direct easy replacement to a lot of nissan turbo's.

That said the gt2835 should net more power based on the larger cover.

Neither will make 350rkw. Ther are rated at 400 ps(give or take depending on models). So about 250rwkw is realistic.

Actually the main difference between the GTRS and the GT2835R's is the turbine . Both of these turbo's use varying trims (52T - 56T) of the GT35 series compressor which is 71.1mm OD .

The GTRS uses a 76 trim version of the 53.85mm NS111 turbine in a .64 ARR GT28 turbine housing . The 2835's use a Garrett hybrid turbine that's actually a modified GT30 turbine . These start life as a 60mm UHP (ultra high pressure ratio) turbine which is factory cropped down to 56.6mm OD and is about the turbine size limit of the GT28 exhaust housing - without totally killing the nozzle section . They are made in 84 and 90 trim and have .64 and .86 housings to suit .

All of this was a bit of a desperate by Garrett to fill the void between the 53.85 and 60mm turbines - in other words too much turbine inlet (back pressure) and not enough shaft torque for the larger trim GT35 compressor wheels . Note that HKS uses the smallest compressor trim (52) in the GTRS with the small turbine . The hybrid turbine is a bit of a dog because the hub section is a bit big (restrictive) and heavy for the length of the blades , GT28 housing really a bit small as well .

For an engine needing a T3 exhaust flange there are few GT28 housing options ie the .64 from the HKS GT2530 or the expensive .68 and .87 from the 2835 Pro S .

In my opinion the Garrett GT3071R is a better bet , it uses the non bastardised GT30 turbine with the same GT35 56 trim compressor as the 2835 . If you need an integral waste gate HKS do a T3 flanged .68 and .87 version for their GT3037 Pro S turbos which you can buy seperately . If you look at the Garrett Catalogue PDF it shows the 3071R CHRA and a couple of compressor housing options .

Cheers A .

Actually the main difference between the GTRS and the GT2835R's is the turbine . Both of these turbo's use varying trims (52T - 56T) of the GT35 series compressor which is 71.1mm OD .  

The GTRS uses a 76 trim version of the 53.85mm NS111 turbine in a .64 ARR GT28 turbine housing . The 2835's use a Garrett hybrid turbine that's actually a modified GT30 turbine . These start life as a 60mm UHP (ultra high pressure ratio) turbine which is factory cropped down to 56.6mm OD and is about the turbine size limit of the GT28 exhaust housing - without totally killing the nozzle section . They are made in 84 and 90 trim and have .64 and .86 housings to suit .  

All of this was a bit of a desperate by Garrett to fill the void between the 53.85 and 60mm turbines - in other words too much turbine inlet (back pressure) and not enough shaft torque for the larger trim GT35 compressor wheels . Note that HKS uses the smallest compressor trim (52) in the GTRS with the small turbine . The hybrid turbine is a bit of a dog because the hub section is a bit big (restrictive) and heavy for the length of the blades , GT28 housing really a bit small as well .  

For an engine needing a T3 exhaust flange there are few GT28 housing options ie the .64 from the HKS GT2530 or the expensive .68 and .87 from the 2835 Pro S .  

In my opinion the Garrett GT3071R is a better bet , it uses the non bastardised GT30 turbine with the same GT35 56 trim compressor as the 2835 . If you need an integral waste gate HKS do a T3 flanged .68 and .87 version for their GT3037 Pro S turbos which you can buy seperately . If you look at the Garrett Catalogue PDF it shows the 3071R CHRA and a couple of compressor housing options .  

Cheers  A .

:confused: shit.....alot of things there that i dont understand lol but thx for the info! (dont know much about turbos =()

:confused:  shit.....alot of things there that i dont understand lol but thx for the info! (dont know much about turbos =()

My 20 cents....

There is a huge difference between a 250 rwkw turbo and a 350 rwkw turbo. You could stick the 350 rwkw turbo on and keep the boost low for 250 rwkw, but it will be as laggy as hell. People tolerate laggy when they have 350 rwkw, but you will have laggy and only 250 rwkw, not so appealing.

So choose, it's either a 250 rwkw turbo or a 350 rwkw turbo and they are not the same turbo.;)

SydneyKid which do you think is better of for occasional track use? i guess i prefer response as to top hp. hmmm......

I have no personal experience with either turbo, we find the GCG ball bearing high flow to be a great all round turbo, suitable for road, drag or circuit. We have a couple of RB25's with 260/265rwkw and both have more power everywhere than standard. That's makes a great package for circuit work.:)

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

    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
    • Since winter isn't that harsh anymore in Poland, i will definetely drive it 365 days a year 😉. But if the snow hits i will try it for sure and let U know. Only swap i am planning to do is of course R34 GTR front 😍.
    • Hey. Very valuable information about pitwork, I will pay attention when buying any consumable parts 🙏 As for the carpets - I got a handful of information from nengun, from which it appears that indeed the carpets for the driver's side are OEM. They are not able to show me any pictures due to the long chain of different sales entities but after I place the order, as soon as the goods arrive at the nengun warehouse from which they will send the shipment to me they can send me photos and if my purchase differs from OEM I can immediately return it / cancel the purchase. I think I will give it a try 😉. Of course i'll let you know what's what as soon as i get them P.s. I know the topic is not relevant to the thread, but both nengun and amayama have these SICK 😍 trunk room lamps available. Do you know anyone who ordered them? I need to have one in my car
×
×
  • Create New...