Garrett Medium Frame Gtx Turbos

[zebra]

Harey - A few weeks ago you were saying that Hypergear turbos were the shit, now its HKS...i dun geddit

I would like to know, is a HKS GT2835 $1500 BETTER than a Gt3071? They are nearly the same performance wise.

The fact that dyno's vary buy heaps depending on where you are that saying you have seen 3-4 bad results to every good one, simply could be a low reading dyno, or a hot day......OR the tuner didnt feel like killing a stock RB25 buy running on what the tuner felt was the ragged edge, just because someone on here once said X kw was the limit of a stock 25 doesnt mean it is.

If it we me I'd buy the garrett turbo and spend the left over coin on Headwork and outpower,out respond the guy with the fancy pants HKS stamp on his comp cover.

[Harey]

The GT2835 practically IS a GT3071R. The GTX3071R is a newer, better version. The GTX3071R also comes with an 0.6 A/R compressor housing too which improves efficiency across the range. Bloody HKS fanboys

Next thing U'll be telling me that the GT-SS will outperform the Garrett -9.

If you read this thread, the big power GTR boys will show you time and time again that the HKS variants make more power than their garrett variants.

http://www.skylinesaustralia.com/forums/topic/251820-got-over-400kw-atw/page__st__620__p__5578829__hl__400kw__fromsearch__1#entry5578829

These guys have the same setup and are willing to try different turbos to directly compare them. How many of us are willing to do that.

[Harey]

Smaller A/R turbine housing doesn't necessarily mean less lag. Some (sometimes all) of the spool incease from quicker pressure build-up is lost in the fact the engine has to work harder agains the higher backpressure.

There is no denying whatsoever that the old GT3071R MUST AND DOES make more power than a GT2835. The only thing that's debatable is the lag difference. There is no way the smaller turbine wheel AND smaller housing makes more top end.

You can use all the tech mumbo jumbo you want, I am simply using all the evidence we have collected on this forum. There is only one GT3071 I know of that matches the peak power of the HKS2835. Whereas there is a great number of HKS2835 turbos that consistently produce the numbers. Compare the dynos, the HKS2835 has considerably more mid range than the 3071 and then matches the best performing 3071s in the top end.

[bradsm87]

they are different cars with different engines, exhausts, intercoolers, intercooler piping lengths, tuners, the list goes on and on. u can't compare turbos using those different setups. HKS turbos are made of Garrett parts so it's very easy to compare them.

Also lol at thinking even a GT-SS is better than a Garrett -9. It's exactly the same turbo. EXACTLY. HKS used to have exclusive rights to this turbo but not anymore.

No wonder why things move so slowly forwards i. this industry. too many ppl still buy products because they liked how 100 other cars went 5 years ago so buy the same shit when improvements have been made over that time.

Edited December 13, 2010 by bradsm87

[R31Nismoid]

You can use all the tech mumbo jumbo you want, I am simply using all the evidence we have collected on this forum. There is only one GT3071 I know of that matches the peak power of the HKS2835. Whereas there is a great number of HKS2835 turbos that consistently produce the numbers. Compare the dynos, the HKS2835 has considerably more mid range than the 3071 and then matches the best performing 3071s in the top end.

That thread kinda proves that HKS = Garrett = same same.

Especially when they are identical items... Any differences then come down to the car itself and the mods/tune.

[Harey]

Harey - A few weeks ago you were saying that Hypergear turbos were the shit, now its HKS...i dun geddit

I would like to know, is a HKS GT2835 $1500 BETTER than a Gt3071? They are nearly the same performance wise.

The fact that dyno's vary buy heaps depending on where you are that saying you have seen 3-4 bad results to every good one, simply could be a low reading dyno, or a hot day......OR the tuner didnt feel like killing a stock RB25 buy running on what the tuner felt was the ragged edge, just because someone on here once said X kw was the limit of a stock 25 doesnt mean it is.

If it we me I'd buy the garrett turbo and spend the left over coin on Headwork and outpower,out respond the guy with the fancy pants HKS stamp on his comp cover.

I am sorry to deeply offend you by supporting the Hypergear product. And by supporting the Hypergear product that must mean I hate very other turbo right...

I am simply saying the many results on this forum indicate the HKS 2835 Pro S outperforms the GT3071.

The more turbo options the skyline owner has the better imo. You have the cheaper Hypergear turbos that do their job and have hiflow options for factory appearance, you have the garrett turbos in the middle of the price range with the quality brand name and performance and you have the more expensive HKS turbos which in this case the 2835 Pro S does outperform the above in overall sub 300rwkw performance on a stock RB25.

It is the owners choice to juggle all the info and choose the best turbo for their application.

[Harey]

That thread kinda proves that HKS = Garrett = same same.

Especially when they are identical items... Any differences then come down to the car itself and the mods/tune.

Incorrect, for a start the exhaust housing is a different size. The hks is 0.68 and garrett offers 0.63 and 0.82. If you search on this forum you will also find other differences such as back cut exhaust wheels etc. I am not an expert in this area but I do know that they are NOT identical.

I also went through the dyno thread and analysed many different setups using the 3071 and HKS 2835 Pro S. Time and time again the HKS 2835 Pro S has equal or better top end with a much stronger mid range.

[Harey]

Also lol at thinking even a GT-SS is better than a Garrett -9. It's exactly the same turbo. EXACTLY. HKS used to have exclusive rights to this turbo but not anymore.

No wonder why things move so slowly forwards i. this industry. too many ppl still buy products because they liked how 100 other cars went 5 years ago so buy the same shit when improvements have been made over that time.

Please show me where I said that a GT-SS is better than a Garrett -9, I have no experience with these turbos and have no interest in researching them as I dont own an RB26. This does not mean all comparative HKS and Garrett turbos are identical.

I rate results much higher than marketing. If you want to feel like you are at the forefront of turbo technology by guesstimating the results of the 3071 fine but I will wait until I see the results to judge them.

[R31Nismoid]

The thread you have used as "evidence" of a thread with the "big GTR boys" proves nothing to aid you unfortunately.

All it proves the turbo's are identical.

The GT-SS's are identical to the Garrett -9. Have you even seen GT-SS's part number? I have, given i own a set.

It's 707160-9 - What is that the same part number as I wonder?

There are minor, and I stress the word minor, differences between the GT3071 and the 2835.

Now, the discussion here is the GTX3071, which is going to better turbo than the GT3071, Garrett have shown it to be such already via the compressor maps.

To say they are outlandish statements is a bit ignorant. The results are different yes, and they are minor. Does it attract the price tag difference? Thats upto the owner.

However now with the GTX3071 on the scene, the general consensus is that the 2835 'premium' no longer applies given the GTX3071 will be dead on if not infront even with the off-set housing sizes. Obviously results will prove this either way, but this isn't a new Billet/Precision turbo where no-one has seen any info. We already have the GT3071 to base things off.

What you also seem to not take into account is an external factor. The 2835 carries a hefty price tag and people purchasing such a turbo generally have the best of the best given cost is clearly no object for their aim.

This can, and most certainly will, have an effect on end results.

[R31Nismoid]

Also proportionally speaking there are not many 3071 results vs 2835

There are a few of each, but not many. Given the price of a 3071 this is odd, and it comes back to my budget comment @ the end of the post above.

People either go all out, or opt for the cheaper options like hypergear and so on.

It's either a one or the other type scenario which I've always found interesting on the GT3071 as it's not a common choice and that's the only logical reason I can see really as otherwise, it's a great turbo for the price.

[PM-R33]

Only one way to solve all these debates, some one freaking buy one and post up the results!

[bradsm87]

Only one way to solve all these debates, some one freaking buy one and post up the results!

Lol what I've been trying to say is that won't prove anything unless the same person puts ALL of the above turbos on the car and tuned them all.

Turbo comparisons mean nothing unless on same car.

[PM-R33]

Yeah I know

I just want to see some damn real life results of the GTX3071 and GTX3076.

[StealthX]

Is it just me, or is there a SH!TLOAD of bitching and ego bashing over a few peak and midrange HP (and a nanosecond in response) in this thread?

IMO, HKS is full of wank. You are paying for a brand name.

[bigmikespec]

IMO, HKS is full of wank. You are paying for a brand name.

Lol

[wolverine]

When it comes to the HKS2835ProS lets get a few facts straight. The turbine housing is unique to HKS you can't buy it from Garrett. The cartridge is a generic Garrett.

The HKS2835ProS generally comes as a kit which includes intake, dump, oil water lines, + fiddly things like nuts and bolts etc.

I think GCG's turbo kit for a GT3071 usually arrives clocked with oil and water lines, dump, spacer but no air intake takes you over $2500. I have a quote for more than this from GCG for something similar from a while ago.

So the comparison that it is $1500 dearer is probably not a fair comparison.

Cheaper to buy Garrett = yes,

Cheaper to install Garrett = maybe not (for most of us paying someone else)

Better result = no

So the GTX3071 might be a game changer but until we see some results it is only talk (but good talk).

I think the price of a new HKS2835ProS is prohibitive for many but they do produce very good results so perhaps money well spent vs frigging around at exhaust shops etc getting it all working.

Certainly comparing the HKS/Garrett twins that are known to be identical isn't that relevant. There is a Garret internally gated housing for the GT3071 with 56mm turbine (ie same cartridge as the 2835) but there haven't been many results of note posted. This is the best comparison as the only difference is the turbine housing.

[zebra]

The HKS kits are great yes, but value for money?

Eg a 2 3/4" inlet GT3071 is approx $2k

Metal intake from the local exhaust mob ~$200

Custom Dump $300

Oil/water lines <$200

Gaskets ~$100

A few bolts/nuts from the local fastener mob <$50

Still comes well under the HKS kit price

You could even use the stock inlet hose or do the Rev210 $5 mod instead of a metal pipe.

[GTScotT]

Guys, keep in mind the 2835 has a cropped exhaust wheel. The CHRA might be the same original unit but it is in no way the same nor can it be considered the same as a final product.

Cropping the rear wheel can be all the difference regardless of what the dyno says. Those HKS turbos DO make for special results. The on road effect seems to be amazing, do some youtube.

[joeyjoejoejuniorshabadoo]

also with the 2835 you dont need to purchase a dump pipe so this changes the pricing difference yet again...

it's all the little things that make the little differences with the HKS setup. the induction pipe, the dump pipe, the .68 ex housing, the cropped turbine wheel etc etc. when you add them up they make real world differences

the 2835 is a better unit than a std 3071 however the question here is how the gtX071 will perform.

if it can match the HKS unit then it will be the unquestionable leader for a stock internaled 25, if not then my money is still on the 2835 pro s kit

we need real world results

[snozzle]

What you also seem to not take into account is an external factor. The 2835 carries a hefty price tag and people purchasing such a turbo generally have the best of the best given cost is clearly no object for their aim.

This can, and most certainly will, have an effect on end results.

So very very true