HKS Turbo's vs Garrett Turbo's...

[Guest INASNT]

Originally posted by EVOIV

INASNT: What car do you have? Guessing a Skyline R33? I think a 0.87 housing would be perfect for the RB25...not too laggy, and a heap of top end power.

yep RB25.

Guy with SR20 wants to get the 1.12 turbine housing and this is on a circuit car he is building!!!

[EVOIV]

Hmm...a 1.12 housing is going to be crazy lag I would rather go for the larger T51 HKS turbo instead of the GT3037S with 1.12A/R. I think it looks nicer He using a stroker kit? 2.2L? Well, there is the white JUN s15 in Perth that's supposed to be a circuit car. And that runs a T88. Too big if you ask me

[Steve]

RS500 thanks for the link to the comparison chart. I see what you are saying about the turbine housing. Only confused now that once the wastegate opens, wouldnt back pressure be about the same at 1 bar of boost wether o.87 or 0.61???

I think HKS recommend the 0.87 turbine housing for RB25, but I will wait and see what this turbo goes like when I start winding boost in before I trade in the housing for a larger one. If I can keep a similar torque curve, its staying. Very nice to have good power available from low down, and it is definately more responsive and pulls alot harder off boost than with the stock turbo.

Paul, if the car is on the road, not getting work done, there is every chance in the world.

[matixx]

question here guys. When I brought my car they told me it had a hks 2530 on it. When I pulled some of the plumbing off recently and got a better look at the turbo the only clues I got to it being aftermarket was the smooth feel of the ball bearing blades, and a small badge near the (oil?) feed line which said gt2530. Now is this turbo a garret? by the sounds of it it wont make alot of difference, garret seem to know their stuff...

[Steve]

HKS use garrett cores, the HKS 2530 is infact a HKS GT2530, and it should have a plate saying GT2530 on the core.

But, it should also have HKS on the compressor cover and turbine cover, as they have them specially made to their specs, as are the compressor wheels. This is what you pay the extra for.

The core though is identical.

[MINES_DATSUN]

readin gall this shows that the 2530's are excellent for 0-100km/h times .

but with what type of a/r etc . im not to sure what i should get for it.. reading a 3037s can spool up at 2900rpm .. thats damn low..

[grepin]

Results of a 2835ProS Internal gate. Sard 550cc, Greddy Plenum, after market EXH manifold. Standard pump fuel.

[Steve]

The only probs I found with the 3037 and the 0.61 ar, is that the boost hits so hard that traction is a major drama in any gear. Then again it can be tuned out I suppose (the hard hitting boost).

[RNS11Z]

It will be interesting to see how the GT30 you are fitting goes in comparsion - hurry up:D

.

If your curious to know, my previous turbo was a gt30 (the previous owner told me it was a gt35/40). It had a .82 rear housing (it was a 500hp turbo). on 26psi it made 320+rwkw. It had full boost @ 4000rpm (320rwkw). It started spooling up @ approx 3000rpm. It held 300rwkw to 6500k then dropped off to 290rwkw @ 7300rpm.

My t88 makes full boost abit later but makes the same power using much lesser boost + timing and holds it all the way to 7400rpm.

H.

[Guest INASNT]

If your curious to know, my previous turbo was a gt30 (the previous owner told me it was a gt35/40). It had a .82 rear housing (it was a 500hp turbo). on 26psi it made 320+rwkw. It had full boost @ 4000rpm (320rwkw). It started spooling up @ approx 3000rpm. It held 300rwkw to 6500k then dropped off to 290rwkw @ 7300rpm.

My t88 makes full boost abit later but makes the same power using much lesser boost + timing and holds it all the way to 7400rpm.

H.

Thats funny coz i remember gtst-vspec thread and he was making 300rwkw with on 18psi with a 500hp GT30.

What size was the comp on your gt30?

[RNS11Z]

.7 front, .82 rear. That power was made with a upgraded fuel system (pump and injectors ) and modded plenum and microtech.

Not saying i dont believe the power gtst-vspec made but i would like to see it do some times at the track.

[Gts-t]

HKS use garrett cores, the HKS 2530 is infact a HKS GT2530, and it should have a plate saying GT2530 on the core.

But, it should also have HKS on the compressor cover and turbine cover, as they have them specially made to their specs, as are the compressor wheels.  This is what you pay the extra for.

The core though is identical.

Steve, i have a hks 2540 and it only has hks on the exaust housing. not on the actuator, nor the compressor housing. can you prove that it is not a hks turbo because i really doubt it as is was sold to me by a very reliable contact. please be sure of your statements as the amount of bullshit on this board must be approaching the 50% level...

night, mic

[Merli]

Steve, i have a hks 2540 and it only has hks on the exaust housing. not on the actuator, nor the compressor housing. can you prove that it is not a hks turbo because i really doubt it as is was sold to me by a very reliable contact. please be sure of your statements as the amount of bullshit on this board must be approaching the 50% level...

night, mic

spot reserved for ownage... I'm eating, will post my reply in a few mins

[Merli]

Steve, i have a hks 2540 and it only has hks on the exaust housing. not on the actuator, nor the compressor housing. can you prove that it is not a hks turbo because i really doubt it as is was sold to me by a very reliable contact. please be sure of your statements as the amount of bullshit on this board must be approaching the 50% level...

night, mic

There really was no need for that last comment, all you manged to do is make yourself look like a dickhead.

Anyway.... So you want proof? You really want proof that you got ripped off and your "very reliable contact" sold you an incomplete HKS turbo or worse, a Garrett turbo with HKS exhaust housing?

How about this... I scanned in a page of my HKS Goodsmaster.

Firstly, the page:

And a zoom of the turbo pictured:

Notice the big and unmistakable "HKS" cast onto the compressor housing?

Notice the caption that labels it a GT2540?

HKS GT2540s don't come with HKS wastegate actuators. You have to buy them seperately, so I scanned in that page too:

It is possible to use your standard actuators with the HKS turbo, but not very commonly done.

So.... Is that proof enough for you?

Now what's this about the bullshit level of posts on here??? Perhaps what YOU think is bullshit, is actually correct, and the bullshit lies solely with you.

[R31Nismoid]

Merli... You just made my day

[Steve]

26GTS, ask yourself, how do you know you have a HKS turbo if it doesnt have HKS on it?

All the HKS turbos I have seen (admittedly not hundreds, but I have seen many) have, as Merli demonstrated (cant get much clearer than that;) cheers), HKS on the housings.

Perhaps if you really do think 50% of the info on here is bullshit, you shouldnt bother logging on, as you would be doing yourself a disservice.

Admittedly there is some dis-information, but I have certainly learnt alot from here, as I would think most people who have been loggin on for a while have.

Perhaps you could word your posts a little better, rather than just jumping in and making broad sweeping and unfair generalisations - makes for much friendlier forums:)

[DoughBoy]

Uh guys, you might have noticed he has an RB20 or 25 powered car. Odds are on the fact he is using a single turbo setup, which probably has a T3 flange. All of the HKS 25xx series with the T3 flange DO NOT have the custom HKS compressor cover, but use a Garrett cover with the center machined out and an aluminium insert held in by 4 hex screws.

The only HKS markings on the T3 range are on the exhaust cover, and on the metal tag on the center catridge.

Standard actuators work fine with those turbos too, so no dire need to run a HKS actuator.

Just my 2 cents, no need to jump on the bandwagon and drill someone over this...

[DoughBoy]

As an example, just went and took a pic of a 2530 I have sitting here...

[craz0]

Hi guys I've got a RB25det (auto) and I want to make around the 200rwkw mark I was first looking at a HKS2530 to do this but like the idea of cheaper price (new) turbo and running less boost to hit that target power.

So what would be a good Garrett turbo to hit my goal?

I already have:

Wolf ECU (not in-stalled)

910 Fuel pump (not in-stalled)

Filter

Comeing soon:

Turbo back exhaust (Depending on Turbo)

FMIC (Depending on Turbo)

Auto Tranny cooler

Fuel Reg

Injectors

I'm not after a dyno queen I just want useable power and it must spool up quick, I'm after torque.

Useing standard internals I'm looking at running two different settings with the Wolf Low boost around the 170-180rwkw and high boost 200-210rwkw.

I was looking at this one do you think this will be ok or do you think it might be to big for what I'm after?

Garrett GT25R Ball Bearing Turbo:-

Rated 380hp

Spec's:-

0.64a/r Turbine Housing (5 bolt outlet)

0.70a/r Compressor Housing

Watercooler Centre

48 Trim Compressor Wheel (T04S)

48 lbs/min Comp Flow Max.

76 Trim Turbine Wheel

Integral Wastegate

[Harry]

On the theme of trying a custom Garrett over an off the shelf HKS I'm trying "one" of these...

This is for use on a R33GTR with 2.8L conversion

Dont know what it will produce yet. Goes on dyno for mapping next week.