New Garrett 3071R experiences..

[BOOSTD]

Fitted with a cat back system and usual supporting mods(standard cams)

22psi

[NIZ180]

man I've been eyeing up this turbo for my SR for a few months now. This is the first lot of info I have gotten of people in OZ.

Hope all goes well BOOSTD can't wait to see the results. IMO you should have a look at the GT30R available at ATP mated with the HKS GT30 0.73A/R exh, should be well suited to a 2.5/2.6 like the RB.

[trza2k]

Some more info i have found from some forums about this turbo( This is on a evo 2l though):

"Hi guys-- Here's my take on the ATP 3071, fwiw. It does indeed spool up just like the 3037 (also .63)/custom tubular manifold set up I had on our One Lap car. However, it does this with a *stock cat* and not the test pipe that I run. All things equal, I suspect it to have 700-8000rpm spool up advantage to the GT3037 which is really quite good. Also, on our dyno, boost lag tends to be exaggerated due to the way the engine loads up. Well, not really exaggerated... but it comes close to representing the boost lag you feel on the street when you load it up in 3rd gear. If tested with a much slower ramp-up rate (simulating the first 5 or so seconds of a Dynojet pull where the big rollers are slowly getting up to speed), boost response with drop by another 400-600rpm which is where I suspect ATP is getting their sloop up claims. As such, their claim is perfectly valid and the difference in spool up that we are seeing is based mostly on differences in testing methods. Nothing to create a controversy about, IMHO To give you an idea of how different loads and different gears can effect spool up, look at this: In 4th gear, lugging from a low RPM, the big GT35 on my car can reach 20psi by 4500rpm. In 3rd, it takes until just under 5000rpm. In 2nd, it takes until past 5500rpm. So spool up numbers, by themselves, don't explain the whole picture-- especially when dealing with bigger turbos."

[NIZ180]

this is what I'm talking bout - the new GT30R with HKS 0.73A/R exh housing

[BOOSTD]

some more from ATP... I will not be installing this turbo anymore as my car has been written off.

Hello Matt,

The 3071R without the Exhaust housing is $1075.

We've seen the HKS housings up close and no they are not

better in any way. However, they do make housings that

are with unique A/R's that can fill in the gaps better in

certain applications and they also make T25 flanged

housings with 4 bolt discharge and external wastegate use.

The only other thing to know on the .73 A/R vT25 flanged

HKS housing with a 4 bolt discharge, the extra notch on

the inside has to be machined out in order to clear the

turbine wheel heatshroud on 3071R.

Thanks!

ATP

[B-Man]

Written off ?? OMFG - I'm so sorry to hear that - I hope you are OK.

[BOOSTD]

not due to a crash-from the break in......the quote to fix, topped over $30000. Rims/tyres alone were $8400

[Merli]

Jesus

What was it insured for? Time for a GTR?

[slyr33]

Now we need some one else to try this new turbo.

[BOOSTD]

More info in. 3071R on an Audi 1.8ltr. 426hp at all four wheels!!!! Check out the dyno. spoolup looks sensational. The rumours I have heard are this turbo mirrors the new HKS GT RS at a fraction of the cost

check it out

http://www.atpturbo.com/root/releases/rele...lease050304.htm

11.97 quarter mile and trap speeds of 121mph. backs up the power claims IMHO

[Abo Bob]

Isn't there 2 kinds of GT-RS's though?

[discopotato03]

That figure of 426hp was with a GT28RS and ATP's own custom exhaust housing . The particular housing is a hybrid , it looks like a 5 bolt Garrett on the outside but internally its more like a GT30 style . It also used an external waste gate , a lot of effort was expended to make the EXHAUST side wok well . I wonder what Enthalpy from Honda-Tech.com thought when he read this ..........................

[SLY33]

I think the GT-RS is a bit too small for the CA18, its more suited to a SR20

if your saying GTRS is too small for a 1.8 litre, how is it going to be more suited to 2litre?

GTRS is an awesome turbo even for an RB25, capable of 250rwkw at only 1bar, with loads of average power.

[Busky2k]

if your saying GTRS is too small for a 1.8 litre, how is it going to be more suited to 2litre?

GTRS is an awesome turbo even for an RB25, capable of 250rwkw at only 1bar, with loads of average power.

What I mean is, the GTRS reaches >1bar at approx 3700rpm on an SR20. So for a CA18, its gonna be a tad over 4000rpm I would say. Thats kinda pushing it for a street car, which would already be gutless off boost with a CA18, wouldnt you say?

The GTRS looks great on a RB25 tho!

[FJdat]

wots the verdict on the GT3071R...is it worth getting

[nitemare5]

no ones fitted it on yet

[|PRESA|]

I've been given a pretty good price on one and I'm thinking about bolting up the GT3071R with an RB25 Exhaust housing which should hopefully bolt straight up to the standard manifold.

What do you guys reckon?

[wolverine]

presa i have been thinking about bolting one onto VG housing but as discopotato suggests get the 60mm turbine not the cropped 56mm.

[|PRESA|]

presa i have been thinking about bolting one onto VG housing but as discopotato suggests get the 60mm turbine not the cropped 56mm.

<{POST_SNAPBACK}>

I was looking at the GCG unit - Click Here

Would anyone know if this could bolt up with little hassles?

Or would additional adaptors and oils lines ect. need to be made?

[wolverine]

i was speaking to Tarek at Racepace about the GT3071R with 60mm turbine. he didn't know it existed (best i can figure) till i emailed him the old garrett catalog this turbo comes externally gated (ie same as a GT30R with a 71mm compressor vs 76mm compressor). he was going to get back to me but theoretically it should be no problem to shoehorn it into a VG housing. how well it would work is something i couldn't answer, presumably quite well.

i think the GCG GT3071R is the internally gated version with the smaller turbine (56mm).

discopotato has written a few posts on the cons of the cropped 56mm turbine if you have a look around.

anyway good luck with your choice.

Edited October 17, 2005 by wolverine