HKS GT-RS Turbo kit

[Si T]

HOW MUCH?

that`s made my day (SO not tellin ya how much I paid )

I kinda agree with Bren though, it`s a ball bearing turbo at the end of the day.
I`m off to to stamp mefeet and try and get it booked in ASAP

[EJ Performance]

The GTRS is basically as follows :

Compressor side from the HKS 2835
Exhaust side from the HKS 2540

It's supposed to be slightly more responsive than the 2530 but is capable of flowing more power, as stated around the 400 mark.

Hope this helps

Jez

[bren]

Isnt the turbine housing of the 2540 similar to a standard T28?

[PhilMorrison]

is the turbine housing the exhaust side? if so, not even slightly, the 2540 is twice as large.

I'd be very interested in a price on a GT-RS turbo aswell

[Richie]

Option Motorsport have leaflets on these in their waiting area. Contact 01327 858555. They are designed for a twin turbo car i.e GTR to prevent surge. Rated to 700bhp, presumebly in a pair based on GTR therefore for 1.3l 350bhp so about 400bhp for the SR20

[PhilMorrison]

I would'nt buy through Option, they are really really expensive even for U.K. prices, and besides which I refuse to give Kiki any more money, if he can afford to buy a Porche GT2 then he does'nt deserve my money

[Wookie]

I think I saw a price in the POTN tuning catalogue of around £1825.00. I don't know who the supplier or trader is but if you are interested I will post the number.

[B.L]

The garrett GT25R .86A/R would be a much cheaper option.
Its good for over 400hp and spools up really fast.

[Si T]

I`m sure Hiteq don`t charge that much - always worth a call for a quote

[Wookie]

Si,

It was the wrong price. I checked last night and it's just over £1500 for the GTRS turbo kit. That was from HKS direct.

Richard

[Daniel san]

They're £1350+vat retail = £1586.25

We do them for £1450

[Papa Lazarou]

I would be extremely surprised if they could make anything like 400 bhp at 1.2 bar myself. I think you'd be looking at more like 360 if tuned well, with aftermarket cams.

The turbine wheel on these is about the same size as the S14 turbo but it is capable of flowing more, newer design and all that. The housing is only 0.63 a/r though so its really not one for big top end power. Will spool up pretty quickly though.

[Daniel san]

I'll find out one day, when I get round to it I'm gonna try one for shits and giggles

[steve(s14a)]

Originally posted by Papa Lazarou
I would be extremely surprised if they could make anything like 400 bhp at 1.2 bar myself. I think you'd be looking at more like 360 if tuned well, with aftermarket cams.

The turbine wheel on these is about the same size as the S14 turbo but it is capable of flowing more, newer design and all that. The housing is only 0.63 a/r though so its really not one for big top end power. Will spool up pretty quickly though.

HKS have assured me that with aftermarket cams it will make 400ps. Although they were very cagey at what boost as the guy said it would vary on application (obviously).

However, he did say that their graph showing a Pulsar GT-IR running @ 340bhp @ the wheels was @ 1.5bar, and that on a 200sx I could even see a little more than 400ps at the fly if I was to push it.

[steve(s14a)]

Just checked the japanese HKS website as the USA one never has any power graphs (not that I can find anyway ! ).

Deffo not the graph that I saw (early this year).

As I have said, the one I saw was for a GT-IR with normal mods upto and including FMIC plus their stainless steel exhaust manifold and read about 340ps @ 1.5 bar.

When I rang them up (HKS Europe) and queried that I thought the GT-RS was meant to flow 400ps, they said the graph related to @ the wheels power.

This new graph must be @ the fly, although I am surprised that it does 400ps at 1.2kgf/cm2!

I thought HKS always underestimate their turbos?!

Oh well, not gonna know 'till I try it!

[Papa Lazarou]

This is a graph for Tomei's ARMS turbo's. The ARMS B7652 is to all intents and purposes identical to the HKS GT-RS. Same wheels (52 trim GT35 comp, 76 trim GT25 turbine) same spec housings, it even looks the same.



The spec for the middle one (B7652) is as follows - S14 engine (w/ NVCS), Tomei 555cc injectors, Tomei ECU, Z32 MAFS, Tomei Poncam (256, 256), Uprated fuel pump, 1.2 kg/cm2 boost.

The Standard turbo on the graph is at 0.75 kg/cm2 boost and stock cams.

It should give you a very good idea of what to expect.

[Daniel san]

That's rwhp isn't it Papa

[Papa Lazarou]

No, its on an engine dyno. No transmission losses or anything else to estimate - the crank is just bolted to the dyno on a bench

[Daniel san]

Correct me if I'm wrong, but the diff between hp and ps isn't that much, ps reads as slightly more IIRC, and so that doesn't really make much sense as it shows the stoc S14 not even making 250?

[Papa Lazarou]

The stock S14 is only running 0.75 kg/cm boost (roughly 10 psi). All standard, no other goodies. They don't go into the exhaust and intercooling used so possibly that is uprated for the test?

A std Jap S14 makes 220 ps supposedly.