Jump to content
SAU Community

Recommended Posts

hey guys, i was looking at getting a GT3071R with a 0.64 rear housing on a T25/T28 flange. was wondering if this would push to much boost for my stock internals. i currently only have 255L fuel pump , 3" turbo back exhaust, FMIC. i would obviously be getting a ECU remap straight after and have already got a boost EBC. ANY HELP PLEASE ? my goal at the moment is 200rwkw+ but am looking to go further in the future and what a turbo to support this statement!

Link to comment
https://www.sau.com.au/forums/topic/212173-gt3071r-query/
Share on other sites

Theres heaps on here about how much the stock internals take, but I think anything much more over that your usually relying on the motors past history and chance etc.

I think the turbos a good choice, im actually looking at getting one myself - good tradeoff between response and power it seems

Edited by Jmaac
Link to comment
https://www.sau.com.au/forums/topic/212173-gt3071r-query/#findComment-3748635
Share on other sites

No the biggest factor is it won't bolt to your exhaust manifold , T25/28 flanged exhaust housings are too small at the inlet for 6 leg exhaust manifolds . You really need someting with a T3 flanged exhaust housing .

A .

Surprised it took that long for someone to point that out...even the dump pipe won't fit...and if you are chasing only 200rwkw or so then you are looking at the wrong turbo...

Link to comment
https://www.sau.com.au/forums/topic/212173-gt3071r-query/#findComment-3749590
Share on other sites

same turbo with different exhaust housing is 280rwkw capable though.

for 200 ideally get yourself a hks 2510 or 2530, pricey and getting old though if second hand. The problem you have is that all of the small frame garrett turbos are t2 flanged, the smallest t3 flanged one is the 3071.

You could get your stock turbo highflowed, but even they are generally optimised for power around the 250rwkw mark so you have the response trade off.

Or you could talk to a turbo shop about getting a t28 cored turbo fitted to a modified stock exhaust housing. I would suggest a gt2860rs if you are going to be happy with low 200's, 2871 if you want a bit more.

Link to comment
https://www.sau.com.au/forums/topic/212173-gt3071r-query/#findComment-3750415
Share on other sites

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...