Garrett Medium Frame Gtx Turbos

[ShiftyTys]

Ignore the dyno, of course it will be different, what matters is how does it drive?

Appears to.have same response. Annoyingly

[Lithium]

The response won't change much, if anything was going to improve it'll build more aggressively from 10psi up to full boost from 3000ish rpm - thats what I found with mine. Did you ever post your dyno plot from Status?

[ShiftyTys]

The response won't change much, if anything was going to improve it'll build more aggressively from 10psi up to full boost from 3000ish rpm - thats what I found with mine. Did you ever post your dyno plot from Status?

Hmmm. Interesting. No I didn't.

[ShiftyTys]

Any thoughts on changing to a .63 hotside.

[Lithium]

Hmmm. Interesting.

Is consistent with what you've found?

[scotty nm35]

Any thoughts on changing to a .63 hotside.

With a .63 you would need a large external to bypass enough exhaust or you wont make the power. Its too small imo which would cause massive pressure to build in the manifold and less energy to spin the turbine. I would say .82 is perfect for the GTX3076, if not the 1.06. You have another issue I think.

Want to swap? I have the GTX3071 and want to upgrade...

[Lithium]

Any thoughts on changing to a .63 hotside.

On a GTX3076R? No way. If its laggier than you want to live with, and you can't find anything wrong persay - I'd say you're better off changing the whole turbo. How much are you willing to spend to get it right?

[ShiftyTys]

Is consistent with what you've found?

No. Feels the same.

[ShiftyTys]

On a GTX3076R? No way. If its laggier than you want to live with, and you can't find anything wrong persay - I'd say you're better off changing the whole turbo. How much are you willing to spend to get it right?

I may have the option to.change fairly cost.effectively. why?

[ARTZ]

Want to swap? I have the GTX3071 and want to upgrade...

WTF?? already..

[scotty nm35]

Yep, if I can offload this setup as a kit with a .82 Tial rear I will upgrade to the GTX3076, keep the 1.06 rear and make another set of pipes/adapters up. I have a fair bit of interest already for kits if I want to jig them up but i'm not set up for production runs.

I have been giving the 71 a hiding to iron out any issues it may have long term. The only problem found so far is the V-band didn't hold tight and allowed the turbo to twist, rubbing the compressor housing on the chassis rail around corners. I tightened it right up this time but if it moves again I might just weld the adapters onto the rear housing.

[PSI086]

Anyone fitted a GTX35 to a 3L capacity RB yet? If so how does it compare to a regular GT35? I'm trying to toss up whether its worth spending the extra $500 - $600 on the GTX

Currently running a .96 T04Z on my single cammer and not overly impressed with the repsonse. Without the transbrake its pretty much useless at the track. I certainly regret selling the 1.06 GT35 I previously had on the motor

Edited September 16, 2011 by PSI086

[Rolls]

What power level are you aiming for? A GTX3076 might be more appropriate.

[wolverine]

What power level are you aiming for? A GTX3076 might be more appropriate.

Why? An old school GT35 is cheaper and there is no evidence that the 76mm GTX wheel is any better.

[Rolls]

Why? An old school GT35 is cheaper and there is no evidence that the 76mm GTX wheel is any better.

I meant more appropriate than a gtx35 if he was set on a gtx turbo.

Edited September 17, 2011 by Rolls

[scotty nm35]

I believe the GT is the pick for sub 25psi, GTX for anything over that.

[PSI086]

Aiming for a minimum of 320rwkw on 98 through the auto and big converter. Previously made 321rwkw and ran 10.7 @ 127mph with my old GT35 set up. The GTX30 would be too small on the 3L I reacon. I'd eventually like to screw about 30psi into it with an E85 tune. Theres guys making close to 400rwkw with a GT35 so is the GTX going to be that much better?

[jet_r31]

I meant more appropriate than a gtx35 if he was set on a gtx turbo.

To small for a Rb30, even with a very conservative cam grind Rb30's swallow a f**k load more air than a pissy Rb25

cheers

darren

Edited September 19, 2011 by jet_r31

[JonnoHR31]

yer everyone should just use t62s because anything less is just too small and weak

[blue_vl_t]

Aiming for a minimum of 320rwkw on 98 through the auto and big converter. Previously made 321rwkw and ran 10.7 @ 127mph with my old GT35 set up. The GTX30 would be too small on the 3L I reacon. I'd eventually like to screw about 30psi into it with an E85 tune. Theres guys making close to 400rwkw with a GT35 so is the GTX going to be that much better?

Ryan,

Being your not short of a dollar, you could buy the gtx35 and show some real world results in comparison to the g35

( insert smiley emoticon here : ). , damn I phone)