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Save up for gtx2860r gen 2 or just get a cheapo kinugawa, hypergear or mamba? - Hardtuned.net

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Save up for gtx2860r gen 2 or just get a cheapo kinugawa, hypergear or mamba? 

gtx hyper gear kando e85
19 replies to this topic

#1 s15rocket

  • Joined:26-November 11
  • Location:Australia VIC
  • Car:180sx type x

Posted 12 March 2017 - 08:00 PM

Ultimate goal is for a responsive 250-270rwkw on e85 on a stock engine with poncams.

The GTX gen 2 looks amazing but it would cost at least $2500 to get one of these bolted up. Meanwhile you can buy a whole turbo kinugawa kit for like $1000 that will achieve this.

Problem is I want something responsive. I don't want a turbo that takes 4000pm to kick in. But I also don't want to pay a lot of money lol.

Looking at the dyno graphs of these turbos installed on s13's the top power margin is good but without the vct gear they seem to lag very badly.

Anyway. Has anyone running one of these cheapo turbos on the street? What's it like? I wish I could drive one to see if i'd be happy with it.

Right now I got JDM s15 T28BB hooked up. But I don't want to tune it then have to pay more later for another tune with another turbo. Coz I know I will get bored with it.

#2 _Wing_

  • Joined:10-July 04
  • Location:Australia NSW

Posted 12 March 2017 - 09:01 PM

So you want your cake and eat it too

#3 (Locky)

  • Joined:23-July 07
  • Location:Australia NSW
  • Car:kouki s14

Posted 12 March 2017 - 09:19 PM

Kinagawa T518z.... was ok but dog below 4K. literally hated the car but changed to 4.3 diff and e85 made it bearable and only made 230kw (made 245kw on dyno buyt spiked so hard no good besides 4 gear pulls)

Have a gen 1 GTX2860R ( seems like I bought the last one in aus). But you buy a super core for 1300 then get a blown disco or 2871 for 50-100 then its 30 min of work to swap rear housing to save a bunch
Nearly at point of getting tuned.. hoping for a disco like response ( mid 3K ) with 240ish with 740s on e85 which wil hopefully be a mad street turbo

#4 (Locky)

  • Joined:23-July 07
  • Location:Australia NSW
  • Car:kouki s14

Posted 12 March 2017 - 09:21 PM

but if want the cheap turbo will sell the kinagawa for $500 with a dump and braided lines

#5 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 13 March 2017 - 07:28 PM

Ive had the kinugawa and like locky said was a dog before 4000rpm
But made the power 230kw on pump 98 and 250kw on e85 and ran 12s all day
Hypergear ss2 280rwkw e85 25psi by 3800rpm
Hypergear ss1.5 250rwkw e85 20psi by 3500rpm but boost is capped there too much back pressure upgraded to a larger rear housing but lost power downlow and full boost now was at 4200rpm 25psi extra 16kw 266kw
Depends what you want ss1.5 .64ar was very zippy and always onto boost cruising at 100km but i liked the ss2 .64ar the best not too much lag difference but the extra 30kw you can definately feel
All on a non vct sr20 180sx with poncams
Just make sure your fueling is up to the task and your intake and exhaust is free flowing
Also will need valve springs if running big boost over 20psi
i did them the same time as i upgraded to the ss2 and would reccomend head studs for over 25psi
Hypergear now have the option for bb core so will be even better transient response and feel better down low
Only had the bush bearing option back then and was still ok

#6 s15rocket

  • Joined:26-November 11
  • Location:Australia VIC
  • Car:180sx type x

Posted 14 March 2017 - 12:04 AM

View Post_Wing_, on 12 March 2017 - 09:01 PM, said:

So you want your cake and eat it too

Sure why not? Why spend more than you have too?

View Post(Locky), on 12 March 2017 - 09:19 PM, said:

Kinagawa T518z.... was ok but dog below 4K. literally hated the car but changed to 4.3 diff and e85 made it bearable and only made 230kw (made 245kw on dyno buyt spiked so hard no good besides 4 gear pulls)

Have a gen 1 GTX2860R ( seems like I bought the last one in aus). But you buy a super core for 1300 then get a blown disco or 2871 for 50-100 then its 30 min of work to swap rear housing to save a bunch
Nearly at point of getting tuned.. hoping for a disco like response ( mid 3K ) with 240ish with 740s on e85 which wil hopefully be a mad street turbo

Can you house the super cores in a stock s15 t28BB? I had a genuine greddy t518z on my old s15. That was very responsive. Had 150rwkw by 3500rpm. You dont see many SR doing that. I think kinguwawa t518z isnt machined as well which probably explains its lack of response compared to the real deal. THe real deal is also twice the price. Cost me $2200 from japan for the kit). So you get what you pay for I guess.

http://www.nissansil...ttach_id=423506


View Postpur40m, on 13 March 2017 - 07:28 PM, said:

Ive had the kinugawa and like locky said was a dog before 4000rpm
But made the power 230kw on pump 98 and 250kw on e85 and ran 12s all day
Hypergear ss2 280rwkw e85 25psi by 3800rpm
Hypergear ss1.5 250rwkw e85 20psi by 3500rpm but boost is capped there too much back pressure upgraded to a larger rear housing but lost power downlow and full boost now was at 4200rpm 25psi extra 16kw 266kw
Depends what you want ss1.5 .64ar was very zippy and always onto boost cruising at 100km but i liked the ss2 .64ar the best not too much lag difference but the extra 30kw you can definately feel
All on a non vct sr20 180sx with poncams
Just make sure your fueling is up to the task and your intake and exhaust is free flowing
Also will need valve springs if running big boost over 20psi
i did them the same time as i upgraded to the ss2 and would reccomend head studs for over 25psi
Hypergear now have the option for bb core so will be even better transient response and feel better down low
Only had the bush bearing option back then and was still ok

I think I can definitely cross out the kinguawa for now. Seems like a great track turbo though. But on streets response is king. The new hypergear BB option sounds like a strong possibility tho. I've actuallly been looking at the gt2871r (boring i know) but its tried and tested and its a direct bolt on and you dont even need to alter the stock inlet and outlet piping for the turbo. I think you get them new for around $1500.

Edited by s15rocket, 14 March 2017 - 12:10 AM.


#7 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 14 March 2017 - 07:23 AM

Vct makes a big difference to down low power
So you cant compare a s13/180sx to a s14/15




#8 Varvs

  • Joined:21-December 07
  • Location:Australia NSW
  • Car:97 180sx Type X

Posted 14 March 2017 - 12:16 PM

dont buy a GT2871.

they are a dogshit, old, mismatched turbo and the lag isnt worth it.

#9 (Locky)

  • Joined:23-July 07
  • Location:Australia NSW
  • Car:kouki s14

Posted 14 March 2017 - 08:10 PM

No cant use a stock turbo rear housing, has to be a 2860RS ( disco) or 2871
But can pick up a dead one for 50-100 then super core only 1300ish so stiull a cheap GTX than buying one off the shelf

#10 s15rocket

  • Joined:26-November 11
  • Location:Australia VIC
  • Car:180sx type x

Posted 14 March 2017 - 09:10 PM

View Postpur40m, on 14 March 2017 - 07:23 AM, said:

Vct makes a big difference to down low power
So you cant compare a s13/180sx to a s14/15

Have definitely noticed since selling my s15 and getting a 180sx. Didn't realise just how much VCT effected the low down response. I used to hate the VCT on my s15 especially when it started to rattle. Eventually got it replaced but its worth the $$$$ for the extra response in hindsight now.

View PostVarvs, on 14 March 2017 - 12:16 PM, said:

dont buy a GT2871.

they are a dogshit, old, mismatched turbo and the lag isnt worth it.

Yeah I think I'll just wait and save up for a GTX turbo. Only thing is I noticed these turbos don't bolt on directly. The inlet and outlets don't have the bolt holes like the gt2871r does. So how does one need to bolt them up? Do you need to modify your intercooler piping and use a silicone joiner?

View Post(Locky), on 14 March 2017 - 08:10 PM, said:

No cant use a stock turbo rear housing, has to be a 2860RS ( disco) or 2871
But can pick up a dead one for 50-100 then super core only 1300ish so stiull a cheap GTX than buying one off the shelf

I had a look on gumtree for a dead one. Can't see many around. Where can I get one? But that sounds like the way to go because I don't want to have to change my inlet and outlet bolt pattern as my current intercooler bolts up right now with a gktech adapter. What do you use with the other style flange on these gtx turbos? Do you use a silicine joiner or do u need to make up an intercooler pipe that fits a v band clamp?

I'm talking this style of turbo inlet/outlet vs this kind with a bolt pattern

Posted Image


Posted Image

Edited by s15rocket, 14 March 2017 - 09:16 PM.


#11 chris_c30

  • Joined:29-December 12
  • Location:Australia SA
  • Car:s14a 200sx

Posted 15 March 2017 - 06:53 AM

Tuners have told me gtx isn't the way to go unless you are pushing them to max boost, and for my power goals (similar to yours) to just go disco potato or gt2871 also mamba turbos seem to be the go for budget turbos now

#12 (Locky)

  • Joined:23-July 07
  • Location:Australia NSW
  • Car:kouki s14

Posted 15 March 2017 - 07:09 AM

THe GTX dont come in a s15 style bolt housing unfortunately so will have to mod your piping. Not to hard to do with silicon joiners to mate up to current piping as done it in the past with an old disco, but this time I was getting custom piping so just had it made to suit

#13 Varvs

  • Joined:21-December 07
  • Location:Australia NSW
  • Car:97 180sx Type X

Posted 15 March 2017 - 12:29 PM

View Postchris_c30, on 15 March 2017 - 06:53 AM, said:

Tuners have told me gtx isn't the way to go unless you are pushing them to max boost, and for my power goals (similar to yours) to just go disco potato or gt2871 also mamba turbos seem to be the go for budget turbos now

Why would you buy a turbo that you are not running at peak efficiency?

#14 chris_c30

  • Joined:29-December 12
  • Location:Australia SA
  • Car:s14a 200sx

Posted 15 March 2017 - 09:39 PM

View PostVarvs, on 15 March 2017 - 12:29 PM, said:

View Postchris_c30, on 15 March 2017 - 06:53 AM, said:

Tuners have told me gtx isn't the way to go unless you are pushing them to max boost, and for my power goals (similar to yours) to just go disco potato or gt2871 also mamba turbos seem to be the go for budget turbos now

Why would you buy a turbo that you are not running at peak efficiency?
good point but I think the example he was using was more the difference between high and low boost settings and having crappy efficiency on low boost compared to similar sized turbos in the gt range, probably won't be an issue if you are pushing it all the time and I haven't compared personally

#15 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 16 March 2017 - 06:44 PM

Also once chasing power above 250kw the 2bolt 2 1/2inch inlet starts to become a restriction
Tested by hypergear 13kw difference from 3inch intake to 2 1/2inch intake at 255kw

#16 antonio

  • Joined:26-September 05
  • Location:Australia VIC
  • Car:S14

Posted 18 March 2017 - 09:32 PM

Hypergear no doubt about it, if you want response Hypergear are the people to deliver it.
Non mass manufactured turbos, tested on motors that we actually own and not just on a computer and then produced for the mass.

Garrett is a great turbo no doubt about it R&D is great but Hypergear is effectively HKS in Australia, They take a base turbo and then refine it even more to suit a very specific market.

#17 s15rocket

  • Joined:26-November 11
  • Location:Australia VIC
  • Car:180sx type x

Posted 20 March 2017 - 12:33 AM

View Postpur40m, on 16 March 2017 - 06:44 PM, said:

Also once chasing power above 250kw the 2bolt 2 1/2inch inlet starts to become a restriction
Tested by hypergear 13kw difference from 3inch intake to 2 1/2inch intake at 255kw

View Postantonio, on 18 March 2017 - 09:32 PM, said:

Hypergear no doubt about it, if you want response Hypergear are the people to deliver it.
Non mass manufactured turbos, tested on motors that we actually own and not just on a computer and then produced for the mass.

Garrett is a great turbo no doubt about it R&D is great but Hypergear is effectively HKS in Australia, They take a base turbo and then refine it even more to suit a very specific market.

So which hypergear is the go for 240-270rwkw (cams and e85) with good response? The hypergear turbo names are kinda weird. Don't know which one is which.

#18 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 20 March 2017 - 07:36 PM

250kw ss1.5
270kw+ ss2
Smaller will be more responsive but limited to 20psi due to backpressure if using the smaller .64 rear housing on the ss1.5
I tested a few years back
but if using the larger rear housing on the ss1.5 .86 rear housing
Free it up abit to run more boost and 16kw more up top but loose alot down low and makes it laggy and more linear powerband
Full boost at 41-4200rpm
Might aswell just run the ss2 with the .64 rear housing full boost 3800rpm 25psi and 280rwkw on my old car e85

I dont know about now as stao from hypergear has altered the rear turbine wheel on the ss1.5 now since then to relieve abit of backpressure

Also all cars may differ alil on power output as not many people have got the same output as him on pump 98
As his test car is a s14 so vct sr20 and rebuilt with forgies and bc s2 cams and also he has a good flowing setup good intercooler aftermarket manifold and 3inch intake
He made 270kw on 20psi and 280kw on 26psi with the ss1.5
And 308kw on 25psi with the ss2
The ss1.5 is definately maxxed out around 20psi as it only made 10kw for a extra 6psi and even it was a spike tappered towards top end where as the ss2 holds 24-25psi solid till redline


#19 pur40m

  • Joined:16-February 05
  • Location:Australia NSW
  • Car:180sx

Posted 20 March 2017 - 07:46 PM

I made 28kw less than him with the ss2 but i was on e85
But i had a non vct sr20
Smaller cams poncams step 1
Stock manifold
All will add up and dynos may also differ abit
Afew people have got very similar results to him with non vct sr20 but built also and bigger cams and same tuner and dyno as him
Read in the hypergear thread for all the results
Its definately worth it local warranty
Abit cheaper
Alot of rnd
His customer support is very good even answers your questions after hours

#20 s15rocket

  • Joined:26-November 11
  • Location:Australia VIC
  • Car:180sx type x

Posted 21 March 2017 - 12:42 AM

Thank you for the detailed replies pur40m, I went to the hypergear website and checked out the thread here as well. Lots of good info :)





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