shark91

Hello everyone,

I live in Paris and I own a sierra cosworth 4x4 Engine full stock

I intend to set up a R GT3071 with an exhaust housing cosworth AR72. I chose this model because it retains the original exhaust line and the internal wastegate.

Have you ever ride this turbo? Loading later? Since that is on dual ball bearing but it is not a ar63

Thank you

Bart

Very good turbo. I made a engine with gt3071 and made 432bhp@1.5bar
470NM torque at 3500rpm till 7000rpm

shark91

hello Bart

Thank you for your answer

You speak of me with GT3071R cosworth exhaust housing?

3500 RPM for full charge turbo

It goes perfectly on the 4x4 exhaust manifold

you have a 4x4 or 4x2 cosworth?

Marc sierra

iTrader: (1)

Last year I was also looking at that turbo. But apparently it would surge and the boost needed to be mapped as well, which meant it would need a live map. Who is going to map your engine?

shark91

Good morning Marc,

At the moment I am in full assembly of the turbo compressor. The most difficult has adapted this turbo is the oil return.
It touches the mounting studs of the flange of the manifold.

After about managing the mapping, I have a preparateur near my home that began in cosworth. MTR MOTORSPORT He took out 800 hp + on his old sierra

Frankly I think it is a good compromise that gt3071. After seeing a once mapped ...

Msd does not map on this config?

Marc sierra

iTrader: (1)

MSD could do a live map, but no off the shelf chip for this setup unfortunately. So in the end I went for the tried and tested T34.48.

shark91

Yes you did it is most common and least difficult mount.

In fact I have also taken this turbo because it is reliable and resilient.

And the day I forge the engine, I could keep this turbo.

Nobody who knows someone in England that this turbo?

shark91

Hello

someone has pictures of his oil return assembly on this turbo ?

What have you chosen for arrivals and return water

Thank you all

Bart

It has a.63 housing. I ported this otherwise you have boost creep.
Turbo is fitted to 2wd manifold with spacer.
Ecu is a KMS MD35.

shark91

hey guys

I still have not made ​​the engine reprogramming ...

If it keeps I'll sell my turbo t34 against an ar .. 55

I'm tired of waiting...

R4N SS

iTrader: (6)

i had a gt3076r 0.63 and it was horrible - full boost was around 4500rpm and it made 425bhp and 378 lb/ft on Omex 600 - was not happy

cossie2

R GT3071 with an exhaust housing cosworth AR72 is very good turbo...full boost by 3800 rpm..more than enough..

shark91

bye bye gt3071r (is on sale now)







Finally, I drop the gt3071 because no prepareteur that can make me mapping

So I buy a t34 I am trying to clean up. I'll put my map 803 3 bar

How you breathe in turbo pressure to achieve 330 hp

I own exchanger airtec 60mn, bosch044, dump bailey double piston




T34




Bye bye gt3071r pity...