Thorin Posted November 17, 2009 Share Posted November 17, 2009 Looks pretty good, a little too big a turbo for my liking though, will be very interested to see what the next size down does. I've also only just realised today, that AET are literally just round the corner from my work! Quote Link to comment Share on other sites More sharing options...
Axle Posted November 17, 2009 Share Posted November 17, 2009 will be very interested to see what the next size down does Yeh me too. Would prefer an earlier spool. Quote Link to comment Share on other sites More sharing options...
lockys96 Posted November 17, 2009 Share Posted November 17, 2009 Yeh me too. Would prefer an earlier spool. i have it on mr2, on a supra it will be crazy. Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted November 17, 2009 Share Posted November 17, 2009 Yeh me too. Would prefer an earlier spool. I'll be offering a smaller and larger version of this turbo with my kits very soon, I'll up date the thread in my section ASAP. Quote Link to comment Share on other sites More sharing options...
Krister Posted December 16, 2009 Share Posted December 16, 2009 Sorry to bump an old thread. But what downpipe flange does the 91/79 use? What are the inducers and exducers of the compressor and exhaust wheels? Quote Link to comment Share on other sites More sharing options...
Guest Full-Race Geoff Posted December 16, 2009 Share Posted December 16, 2009 it uses a 3.5" marmon flange, however Full-Race machines this and welds on a 3" vband in the Garrett position so it fits most all aftermarket vband downpipes much more easily. if you are only going to use BW turbos and custom making your downpipe, there is nothing wring with using the 3.5" marmon Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted January 31, 2010 Share Posted January 31, 2010 any further development on this turbo set up Quote Link to comment Share on other sites More sharing options...
Luxluc Posted January 31, 2010 Share Posted January 31, 2010 As Paul Whiffin said, he'll test the 88-75 1.00 A/R and the 91-79 0.91 - both divided - on a stock engine with stock cams (probably mapped to 1.7 bar). Results should be available within the next 2 weeks. Quote Link to comment Share on other sites More sharing options...
L33 Posted January 31, 2010 Share Posted January 31, 2010 glad to hear good things about this turbo as ive now bought a 91/79 to replace my gt4088 Quote Link to comment Share on other sites More sharing options...
Guest Full-Race Geoff Posted February 1, 2010 Share Posted February 1, 2010 great news gents, thanks for keeping us posted! We are currently working hard to get the 1.10 a/r housings available for the 91-79, as i believe these to be the optimal match for that turbine and compressor combination Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 1, 2010 Share Posted February 1, 2010 Do these turbos have Ni-Resist (high nickel content) turbine housings? Will they suffer the same housing internal scaling and erosion as the GT4088? Anyone used one on anything and racked up any proper mileage on a race track? Quote Link to comment Share on other sites More sharing options...
Guest Full-Race Geoff Posted February 1, 2010 Share Posted February 1, 2010 the current BW airwerks housings are not ni-resist, we have used these for many hours on race tracks and have literally not had one single failure... not one. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 1, 2010 Share Posted February 1, 2010 Just to be clear, race tracks like Laguna Seca, or drag strips? The thermal loading is quite different I have to say I am very wary of none ni-resist housings given the number of cracked, eroded, warped and generally *uggered housings I get to see. Because of that I tend to ask lots of awkward questions about turbos used on track, please forgive me, I am not trying to be (too...) difficult Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted February 1, 2010 Share Posted February 1, 2010 the current BW airwerks housings are not ni-resist, we have used these for many hours on race tracks and have literally not had one single failure... not one. how would you compare this turbo to the hks to4z kit Quote Link to comment Share on other sites More sharing options...
Guest Full-Race Geoff Posted February 1, 2010 Share Posted February 1, 2010 Just to be clear, race tracks like Laguna Seca, or drag strips? The thermal loading is quite different I have to say I am very wary of none ni-resist housings given the number of cracked, eroded, warped and generally *uggered housings I get to see. Because of that I tend to ask lots of awkward questions about turbos used on track, please forgive me, I am not trying to be (too...) difficult i totally understand your questions, and would much rather you ask than not. Chances are there are many other forum members who have the same questions but do not post up. Funny you mentioned laguna seca, becuase one twinscroll BW equipped car has been out there more than a few times, on the borgwarner 83-75 1.00 a/r (as well as here in AZ at firebird and PIR): http://modified.automotive.com/113238/modp-0908-yimisport-tuning-2008-subaru-sti/index.html the only abnormality of this car is that it uses a heavily shimmed cosworth oil pump which makes loads of oil pressure, so there was a small restrictor 0.050" inserted into the oil feed fitting to stop excess oil pressure from reaching the turbo. since that was solved there has been zero problems. i absolutely relate to your problems with other subpar housings, and in my experience the bw product line is second to none. We have literally not had a single bw failure to date, and thats not saying it wont happen, but it hasnt happened yet and that is very confidence inspiring. also there are some exciting new product on the horizon that will address your concerns and one-up them.. sorry i can not be more specific or release any more details at this time... i can tell you that any true turbo buff will be making this face how would you compare this turbo to the hks to4z kit the hks t04z is a very old turbocharger design. It works fairly well for what it is, but its far from "optimal". The t04z is also called the T67 (from garrett) or PT67 (from precision) and uses an 11 blade p trim turbine wheel with a 6 blade 66.7mm 63 trim compressor. These are fairly old technology with antiquated blade aero... Almost all modern turbo designs use a 10 blade turbine wheel and a 7 blade lower trim compressor. The best thing this T04Z kit has going for it is that the manifold is twinscroll (divided) which is why despite the inefficient wheel designs the turbo still works quite well with good spool and transient response i hope this helps answer your guys questions a little bit cheers, geoff Quote Link to comment Share on other sites More sharing options...
nigelboyne Posted February 1, 2010 Share Posted February 1, 2010 thanks geoff Quote Link to comment Share on other sites More sharing options...
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