Garrett Medium Frame Gtx Turbos

[jet_r31]

Anyone looked at the new procharge hiflow  turbos..gt37 turbine/68mm billet comp in a 35 frame..very GT3794 ish, not sure on price

cheers

darren

[Lithium]

Yeah, I am very interested to see how it goes!  Obviously this is all theory, and I think there is worth in the thought experiment side of things.

If you haven't checked them, here's the turbine flow map for the normal GT35 turbine (ie, like from your 3586HTA)

 

And for the "RS" version:

By Garrett's own admission/claims the increase in flow "A/R for A/R" the new RS turbine is only margainally better flowing than the existing GT35.  On paper the 1.06a/r GT35 housing will actually outflow the 1.01a/r "RS" turbine though obviously there is more to it than just that.

Edited December 19, 2016 by Lithium

[whatsisname]

Not interested in the GTX3582R GEN II, given the turbine is the same as what I've already got.

How much power does the GTW3884 produce with the 67mm-84mm comp wheel?

[Lithium]

1 minute ago, whatsisname said:

Not interested in the GTX3582R GEN II, given the turbine is the same as what I've already got.

I think you missed the point of what I shared.... the difference in turbine flow between the old GT35 and the "RS" one used on the GTX3584RS is 2/10ths of f-all.  

Based off what is available on paper I would wager than the GTW3884R will make more power than the GTX3584RS but will obviously come at some cost in terms of lag but I don't know what people have actually made from the GTW3884R.  I'm guessing something close to what people used to make with GT3794HTAs

[whatsisname]

Comparing exhaust flow between the GT35 and RS turbines at the same housing size there is a difference in flow. Okay it's not huge, about 1.5-2lbs/min at the important PR range of 3.0-3.5 where most RB motors will operate. Of course anyone willing to sacrifice even more response can use the 1.21 housing where the increase in flow over the GT35 is closer to 4-5lbs/min.

If I can get around up around 530-560kW at the wheels and peak boost by 4000-4500RPM or thereabouts I'll be more than happy with the decision.

Found a dyno result for a GTW3884 on a BA XR6T. No other details other than just over 500kW @ 25psi.

[whatsisname]

The improvement in maximum efficiency to 78% (vs 70% )has to factor into the result somewhere.

[whatsisname]

Yeah, I am very interested to see how it goes!  Obviously this is all theory, and I think there is worth in the thought experiment side of things.
If you haven't checked them, here's the turbine flow map for the normal GT35 turbine (ie, like from your 3586HTA)

 
And for the "RS" version:

By Garrett's own admission/claims the increase in flow "A/R for A/R" the new RS turbine is only margainally better flowing than the existing GT35.  On paper the 1.06a/r GT35 housing will actually outflow the 1.01a/r "RS" turbine though obviously there is more to it than just that.

1.06 vs 1.01 isn't A/R for A/R [emoji6]

[whatsisname]

Three more XR6T with GTW3884R results:
427kW 21-22psi on 98
423kW on 19psi also running pump 98
490kW on 24psi Unknown fuel - possibly 98.
Found a 512kW on 20psi running E85 but not sure if it's a GTW3884 result or not

[jet_r31]

2 hours ago, whatsisname said:

Not interested in the GTX3582R GEN II, given the turbine is the same as what I've already got.

How much power does the GTW3884 produce with the 67mm-84mm comp wheel?

last one i saw was 655rwhp on 36psi through a auto sohc rb30, 144mph ish traps at 1300kg ish

What you and your mate are missing matt, is you are talking T3 housings, doesnt matter how good the turbine is..your pushing shit uphill

from 450rwkw onwards really on a 3.0...okay on a 2.0.. its t4 time if your starting from a clean sheet of paper..this will never change

your giving up spool..and power

Out of interest..the p trim turbine is hardly anymore efficient than a 3582 turbine in the real world without  being backcut alot

and the 65mm old precision turbo turbine is a turbonetics f1 wheel

Edited December 19, 2016 by jet_r31

[whatsisname]

Powerglide auto? Assuming that was on E85 at 36psi.

[jet_r31]

yes and yes

[whatsisname]

So if the T3 housing is the limiting factor, how have people managed to run over 170mph trap speeds and the horsepower required to do so using a T3 housing?

[whatsisname]

yes and yes

So fair to say add about 40-50kW at the wheels to a 5sp manual dyno result?

[jet_r31]

And vls have run that close to that with 3582's with the KTS 11 blade gtx billet wheel on less boost..

my mate went 140mph on 30psi with stupid retard  backpressure(full exhaust  with gate plumbed back), others have gone 143 on 32psi.. with .82s and backcut 3582 turbines

[jet_r31]

2 minutes ago, whatsisname said:

So if the T3 housing is the limiting factor, how have people managed to run over 170mph trap speeds and the horsepower required to do so using a T3 housing?

not on 3.0's ....

[jet_r31]

And theres more than a few  cases of people melting turbines to the housing doing it on 2.0's..lol

[whatsisname]

I wonder what peak power gain I would see switching from the current FP T3 0.85 to a Garrett 1.06
463.7kW @ 25psi was all we could get using the 0.85

Saw another RB30ET make 450kW through a 2sp glide running a GTX3582 GEN I - roughly 480-490kW through a 5sp on the BW dyno

[whatsisname]

not on 3.0's ....

Yeah fair call.

[whatsisname]

And theres more than a few  cases of people melting turbines to the housing doing it on 2.0's..lol

Crazy boost levels and EGTs will do that lol

[jet_r31]

Yeh my mates vl made 450rwkw though glide on 30psi with just that 67mm comp wheel upgrade on 3582 ..went 140mph 

make f**kloads more with exhaust off...but went straight to 40psi...and maxed out 2 044's

laggy though...

you really want a pt6466 .82 t3..