Hi Alex.Tried sending u PVT message, but your inbox is full. Finally settled on a GTX3071R -WG for my build. It's all going down end of the month. Doing a custom Mandrel bend exhaust Mani, ceramic coated, to help with the spool. My bud is having his done next week with a GTX3576R on his S3 8P.Hope I'm doing the right thing with this choice. Any idea of when the GTX3071R will be on full boost , power figures +- @1.5 bar boost? Not many people down south have shared info on this topic. Thx in advance.
Ooops.....cleared a few out at last.
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I think you'll be happy with the 3071,as you'll get plenty of power,and also decent boost from relatively low rpm.
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Mine gives useful boost from around 2700rpm,and full boost is at around 3500+rpm.
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At 1.5bar,you would be looking at around 440bhp,which is about what we got from mine at that,but to go above 1.7bar,you will need an external boost controller,as the ECU boost control only runs to 1.7bar.
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Do bear in mind that I also run a WMI kit,plus a big intercooler,and all of the above figures are dependent on barometric pressure,air temp,and other variables like boost,fuelling and timing.
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AT 1.7bar,we were getting around 480bhp,and 2 bar is about the useful limit of a GT3071,but a GTX will flow about 10% more.
I'd be very interested to see how your mate gets on with the 3576,as it's good for over 600bhp,but the HPFP and a few other parts may not allow him to get to that sort of figure,which may make a 3076 a better bet in some ways.