disco potato questions?????????

[buku_points]

ok i blew my s15 turbo the tother day and now im debating on buying a disco potato. i know its a t3 intake and t25 exhuast side, but what are the pros/cons of this turbo? anyone know how much boost it can run safe? i also know this turbo is really heavy, are there support brackets for this turbo?

[boosteds13]

Actually, its still a TO4B compressor housing just like the S15 turbo. For the cost of the 28RS, I would just get a GT2871R. I dont think the turbo is THAT much heavier than an S15 turbo seeing as the only real difference is the design of the compressor housing and a larger compressor wheel (that is only a few grams heavier).

[buku_points]

ohhhhhh....... im trying to get my car over the 300 hp barrier would the disco do it?

[S14DB]

The compressor housings are the same size .60a/r 60mm. The R is a 60trim and the RS is a 62trim. The turbine on the RS is slightly larger 53.85mm w/ 76 trim vs. 53mm w/ 62 trim.

Just a waste of time. Get the GT2871R. Same 53.85mm w/ 76 trim Turbine but with a much larger compressor 71mm w/ 56 trim. 2mm smaller than a GT30R.

If you want the same output just get the GT28R for $900. if you want to shoot for 400 get the GT2871R for $1200.

edit:
ohhhhhh....... im trying to get my car over the 300 hp barrier would the disco do it?
You can easily get 300hp with cams and the GT28R.

[buku_points]

well i do have tomei 256 cams bigger injectors 12 lbs of boost all the other goodies and i made 280 hp with 250 lbs of torque the reason why i was gonna get the disco was because its only 500 bucks with my blown s15 turbo as a core trade.

[WILDACEX187]

^^^where is this?

[buku_points]

the shop is in el monte they rebuild turbos and sell new and used

[boosteds13]

the shop is in el monte they rebuild turbos and sell new and used
I have heard of conversions using your old center section, and upgrading the wheels/housings. But since yours is blown, I don't see how they would do that. The chra alone costs more than $500.

[Nismo240SX]

get the disco. gt2871r is a laggy bitch no matter what they tell you. i've rode in a .64 trim car and a disco car... and if you like the spool of the s15 turbo, you will love the gt28rs

[JohnC]

I have another suggestion that you should seriously consider.
HKS GT-SS.
rhdjapan.com has them for $950 . shipping is aropund
100 so you will get a really fast spoolong turbo, with over 350hp potential.
the 325 hp rating is for 1.1bar and cams according to HKS's dyno charts
on a SR.
I have one on the way and It will be going in with tomei 256 cams
ans other small items.
HKS GT-SS Turbo (https://www.rhdjapan.com/shop/cart.php?m=product_detail&p=140)
Patrick & Russell are great guys.

[S14DB]

I have another suggestion that you should seriously consider.
HKS GT-SS.
rhdjapan.com has them for $950 . shipping is aropund
100 so you will get a really fast spoolong turbo, with over 350hp potential.
the 325 hp rating is for 1.1bar and cams according to HKS's dyno charts
on a SR.
I have one on the way and It will be going in with tomei 256 cams
ans other small items.
HKS GT-SS Turbo (https://www.rhdjapan.com/shop/cart.php?m=product_detail&p=140)
Patrick & Russell are great guys.
That is a Re-badged GT28R

[wootwoot]

get the disco. gt2871r is a laggy bitch no matter what they tell you. i've rode in a .64 trim car and a disco car... and if you like the spool of the s15 turbo, you will love the gt28rs


You consider a 2871 laggy? Compared to a stock VW turbo maybe. Between the gt28r (essentially a s15 turbo) and the the gt28rs you can have near 25 more whp efficently with considerably less torque. the 28rs and 2871's share very similar torque curves but with the 2871 can provide quite a bit more power. The 28r shows a very different torque curve then the others when boosted high. I wouldnt trust that shop selling you rebuild's as well. Research it more.

For all of you calling it a disco potato, cut the shit!! All it does is show that you are hanging from SCC's nuts

[JohnC]

Re-badged? not really. (not according to HKS at least)
It is a upgraded design. blade angles are different
housings internal flow design has been modified.
This info is from HKS japan dirctly speaking to
one of their tech guys. My mechanics have a really fast
impreza (under 9's for 1/4mile) and they had HKS modify one of their turbos, TZ51 or something
Like that, to their requested specs and they have a direct line
to HKS. Now if HKS lie about their product, well they got me
but if they do not, I guess I got a better turbo then a gt28r.
I have a S15 turbo on my car so I will have a good comparison once it is on.
Just have to wait and see I guess.

[McRussellPants]

T51Z is a Greddy Turbo

T51R is a HKS Turbo

GTSS looks more like a BB S14 turbo. It doesn't have the triple blades that the S15R does.

I severely doubt that thing will go over 325hp.

[JohnC]

Thanks for the crrection about which is a hks turbo and which
one is not.

Anyway, here is HKS japan dyno on the SR with cams at just under 1.1 bar or 16 psi
http://www.hks-power.co.jp/products/turbo/turbinekit/ac_gtss/ac_gtss.html

[S14DB]

Only diff I see than a GT28R is that it has a HKS wastegate actuator and a 76 trim turbine instead of 62. The compressors are exactly the same and the Turbine wheels are the same Diameter.

Looks almost like they put a RS turbine wheel in a GT28R.

I would rather have a HKS GT2530 if I had to chose from the HKS line rather than get some hybrid.

Still can't compare to a GT2871R.

[JohnC]

I was considering the rs and the 2871r and the ss.
SS was chosen for its very fast spool up time even compared to
the 28RS and being able to support my goal of 330-340 hp.
gt2530 will have more lag, about 400rpm according to HKS rep, and the
the boost response will be a tad slower. Yes it will support more power
and is a great turbo but not responsive enough for me.
It all depends on what you want.

[ryangreg]

[QUOTE=McRussellPants]

It doesn't have the triple blades that the S15R does.




I have sitting on my desk in front of me a brand new s15 t28, and it doesnt have these triple blades you speak of. Double fin on the compressor housing, is that what you were trying to say?

[buku_points]

dang so many turbos to chose from, i really want my car at the 300 hp barrier, i really loved how my s15 turbo spooled up so fast and smooth. i found out that the " disco" the shop was selling me was only a re-built s14 turbo. so im really looking into this hks turbo john is talking about. going turbo shoping this week.

[McRussellPants]

[QUOTE=McRussellPants]

It doesn't have the triple blades that the S15R does.


I have sitting on my desk in front of me a brand new s15 t28, and it doesnt have these triple blades you speak of. Double fin on the compressor housing, is that what you were trying to say?


S15 Spec-Rs that Kuah slings have Triple blades on the compressor. note also that the GTSS doesn't get the cast divider, (i geuss thats the RS hotside though,nvm.)


GT2871R with the .86 is coming out as a winner for me.

[JohnC]

My spec-Rs, yes with devider in the cast, does not have triple blades.
It was bought new via nissan dealership so I know I got the right one.
It has double .
One more thing to throw in the mix. Dry numbers as in trims, ar's etc.. do not
always tell the whole story. Internal housing flow designs, angle of the blades
and minor changes in BB design all contribute to different turbo characteristics.
For example. The turbonetics EVO 8 turbo I have with what on paper is very
usual upgrades outflows, outruns and out powers the same upgrades done
to other evo 8 turbos. The TME housing and 20G upgrade are very simple
upgrades to do but put the turbos side by side spool up, power curve
and outright power are not the same. Wy is that? the housings are internally
redesigned and blades are lighter and the BB mechanism was reworked.
Now was the turbo worth the end price of $2500(including core turbo)? for me yes, I get
1.7bar of boost in second gear before 3.3K rpm which is CRAZY and it flows enough to
provide me with above 440hp and with the Piper cams I am producing just over 450ft/lb's of torque.

[ryangreg]

^ HOLY shit balls 450 ft lb!! She must feel damn good alright.

[JohnC]

^ HOLY shit balls 450 ft lb!! She must feel damn good alright.
O/T so sorry.
It feels amazing.
In third gear, hitting the gas pedal at 3K I will get that magic number in under 400rpm.
The car was built to be a torque machine. Turbo, stg3 cams and ECUTEK EM is all she needed.
The turbo really , honestly, spins for three to four seconds just by blowing on it. I did this
before the install and it really got me excited :wackit:
I do support it with SMC water/meth injection to keeps egt\s down. It helps that we get really good gas
at the pump.

[drift freaq]

I was considering the rs and the 2871r and the ss.
SS was chosen for its very fast spool up time even compared to
the 28RS and being able to support my goal of 330-340 hp.
gt2530 will have more lag, about 400rpm according to HKS rep, and the
the boost response will be a tad slower. Yes it will support more power
and is a great turbo but not responsive enough for me.
It all depends on what you want.
According to HKS's HP charts on there website the SS is only good for 280ps, now I know they underate their turbo's but I have a hard time believing your going to pull 330-340HP out of that turbo. I would say safely your going to be in the 300-320 range max.

[JohnC]

Well. we will know in a couple of weeks wont we? :)
On the link I posted to hks japans site they got 320 ps
at 1.1bar.
Anyway since I have tomei 256 cams, same profile
as in the hks's dyno sheet and they got 320 ps from 1.1bar,
I will , again according to hks, get to 330-340 uping the
boost a couple of points and still not push the turbo too much
So I am crossing my fingers and hoping the guy from hks
japan did not b.s me ( I am sure he did not)

[drift freaq]

Well. we will know in a couple of weeks wont we? :)
On the link I posted to hks japans site they got 320 ps
at 1.1bar.
Anyway since I am have tomei 256 cams, same profile
as in the hks's dyno sheet and the get 320 ps from 1.1bar,
I will , again according to hks, get me to 330-340 uping the
boost a couple of points.
So I am crossing my fingers and hoping the guy from hks
japan did not b.s me.

hmm interesting. Of course I was going off HKS USA charts. They did not list boost levels. I have a GT2535 on my RB25 and I was told it would do 350 at 1. bar, though the HKS USA site had it listed at 340 with no bar rating. much to my dismay hahhahha. I am shooting for 360-370 ps at 1.2 bar with it.

[Nismo240SX]

For all of you calling it a disco potato, cut the shit!! All it does is show that you are hanging from SCC's nuts

well, when the DISCO POTATO first came out, i was working a JGY. we were a first few who actually got to try it out before it really hit the market. this was before SCC got a hold of it. so deal with it. thats what i want to call it, and thats what i am. :gives:

[boosteds13]

[QUOTE=ryangreg]


S15 Spec-Rs that Kuah slings have Triple blades on the compressor. note also that the GTSS doesn't get the cast divider, (i geuss thats the RS hotside though,nvm.)


GT2871R with the .86 is coming out as a winner for me.
Just got it in the mail today--
http://www.escic.com/240sx/t28-1.jpg
http://www.escic.com/240sx/t28-2.jpg

No triple blades on mine...

[ryangreg]

Yep there she is....except mine says 1-1 not 1-2 on the compressor housing. Wonder what that means?

[steve shadows]

According to HKS's HP charts on there website the SS is only good for 280ps, now I know they underate their turbo's but I have a hard time believing your going to pull 330-340HP out of that turbo. I would say safely your going to be in the 300-320 range max.

FYI

HKS rates their turbo chargers as brake ps or hp. Not DYNO.

So for real numbers you have to do some searching and checking around for other peoples experience.

[drift freaq]

FYI

HKS rates their turbo chargers as brake ps or hp. Not DYNO.

So for real numbers you have to do some searching and checking around for other peoples experience.
Well that makes me more confident on the numbers I want to pull out of my Gt2535 :D .

[GlacierFreeze]

Why consider the Disco?? I've seen dynos with the Disco vs S15 from experienced tuners. The Disco spools slower and makes less power than the S15 turbo. Don't even consider it dude. BTW this was a couple years ago and the chart probably couldn't be found on the net any more...

[GlacierFreeze]

Yep here is the old thread. Chart doesn't show up any more but he states when full boost comes on and what power is made.

http://forums.freshalloy.com/showthread.php?t=86547&highlight=disco+potato+s15+chart

[steve shadows]

hey thats me posting "Ole_RPSport_Steve" lol

in the link

[GlacierFreeze]

I figured you were on there but wasn't sure of your name hahaha.


edit.... I always thought you were an old guy on FA. lmao haha