Jump to content
SAU Community

Recommended Posts

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?

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.

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... :)

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?

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?

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.

  • 1 month later...

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 by PSI086

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 by Rolls

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?

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 by jet_r31

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)

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Hi guys, has anyone either purchased or built themselves a rotisserie for their car before? I can only just justify the need for one hence why I should just make one but at the same time, if I make one I can kiss another 4 weeks of potentially productive car working time goodbye because I'm building a bloody rotisserie....  I mainly want it for the application of the body deadener.  Cleaning the old stuff off, priming and then colour over the deadener doesn't worry me, it's just the application using the Schutz Gun that I feel would achieve a significantly better finish painting it side on and keeping the Schutz Gun upright.  I don't think they would work well on the side let alone almost upside down for some areas.  If the product I use (Terosun, etc) could work through a HVLP ok then it might be ok to apply without the rotisserie.   I can get one of these style ones for about $1200 which is pretty good value-     I reckon if I made one it would cost around $500 but it's more the time that it would take is more of a killer than the cost.  They look to hold their value pretty well second hand so I could always sell it after using it and realistically only lose $200-$300 at worst.  Or keep it and buy another project when this one finally sees the light of day... Anyone selling one...? Cheers!  
    • While it is a very nice idea to put card style AFMs into the charge pipe (post intercooler, obviously), the position of the AFM and the recirc valve relative to each other starts to become something that you really have to consider. The situation: The stock AFM is located upstream the turbo, and the recirc valve return is located between the AFM and the turbo inlet, aimed at the turbo inlet, so that it flows away from and not through the AFM. Thus, once metered air is not metered again, neither flowing forwards, or backwards, when vented out of the charge pipe. When you put the AFM between the turbo outlet and the TB, there is a volume of pressurised charge pipe upstream of the AFM and there is a volume of pressurised pipe downstream of the AFM. When the recirc valve opens and vents the charge pipe, air is going to flow from both ends of the charge pipe towards the recirc valve. If the recirc valve is in the stock location, then the section between it and the TB doesn't really matter here - you're not going to try to put the AFM in that piece of pipe. But the AFM will likely be somewhere between the intercooler and the recirc valve, So the entire charge pipe volume from that position (upstream of the AFM, back through the intercooler, to the turbo outlet) is going to flow through the AFM, get registered as combustion air, cause the ECU to fuel for it, but get dumped out of the recirc valve and you will end up with a typical BOV related rich spike. So ideally you want to put the AFM as close to the TB as possible (so, just upstream of the crossover pipe, assuming that the stock crossover is still in use, or, just before the TB if an FFP is being used) and locate the recirc valve at the turbo outlet. Recirc valve at the turbo outlet is the new normal for things like EFRs anyway. In the even of a recirc valve opening dumping all the air in the charge pipe, pretty much all of it is going to go backwards, from the TB to the recirc valve near the turbo outlet. But only a small portion of it (that between the TB and the AFM) will pass through the AFM, and it will pass through going backwards. The card style AFMs are somewhat more immune to reading flow that passes through them in reverse than older AFMs are, so you should absolutely minimise the rich pulse behaviour associated with the unavoidable outcome of having both a recirc valve and an AFM in the charge pipe.
    • Yep, in my case as soon as I started hearing weird noises I backed off the tension until it sounded normal again. Delicate balance between enough tension to avoid that cold start slip and too much damaging things.
    • I'm almost at a point where I feel like changing the alternator. Need to check the stuff you mentioned first though.
×
×
  • Create New...