bri73y Posted November 14, 2012 Share Posted November 14, 2012 good to hear things are working for you john, eager for you to get some seat time and finally experience the turbos at full song. btw did you guys get the ets-pro going Car survived run in on the dyno today. It made 375kw at 6000rpm off wastegate (16psi), timing at 18degrees and .9lambda so still heaps more to come at final tune. Cams not touched and boost all in below 4000rpm. Looking very promising..... ETS Pro all installed but yet to be tested. Will definately let you know how it goes. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6624802 Share on other sites More sharing options...
Roy Posted November 14, 2012 Share Posted November 14, 2012 That sounds very encouraging!!!! Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6624871 Share on other sites More sharing options...
bradsm87 Posted November 18, 2012 Share Posted November 18, 2012 Hopefully with the availability issues gone, we can start to see a lot more results and discussion again. The Boost Lab received one EFR 7064 .92 last week and I snavelled it up straight away. I should get it in about 2 weeks which is roughly when I should get my block back with the Darton sleeves fitted. If I get the turbo before the block, I'll fit a spare rooted SR20 into the car so I can make an exhaust manifold ASAP. I seriously am sooooo keen to get this thing going. 2.2L, 9.6:1 comp, W2A intercooler across the front of the engine, Poncams, E33 fuel mix and EFR 7064 .92 twin scroll should be a shitload of fun for a street car, even on only 15psi through midrange (will taper boost upwards as RPM increases to hold the torque curve dead flat to at least 6000). Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6629320 Share on other sites More sharing options...
black bnr32 Posted November 18, 2012 Share Posted November 18, 2012 http://forums.bimmerforums.com/forum/showthread.php?t=1919765 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6629532 Share on other sites More sharing options...
SimonR32 Posted November 18, 2012 Share Posted November 18, 2012 (edited) Surely a fake?!? Mind you didn't they have problems with the original casting company? Maybe this is the quality of the new guys? Edited November 18, 2012 by SimonR32 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6629800 Share on other sites More sharing options...
GTScotT Posted November 18, 2012 Share Posted November 18, 2012 That is really off putting hey.. Seems to me like the delays may have been surrounding the turbine housing production and may have even been the cause of those turbine wheel failures. This new 'ugly duckling' housing might be from a more reliable source but at the cost of glamour. Thats just me guessing though, my 2c worth anyway. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6629824 Share on other sites More sharing options...
infamous_t Posted November 19, 2012 Share Posted November 19, 2012 Clearly something dodge going on there. TS housings were only available in very low numbers, but open scroll were freely available in most sizes... I reckon someone got there hands on a TS housing and sent it into the chinese photocopier to fill a hole ion the market! Either that or it was a genuine housing that wasn't supposed to be sold, at least at full retail (ie development version or QA fail etc) Chris over in NZ got his 8374 TS 6 months ago (new manufacturer batch) and the quality was perfect as expected... Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6629838 Share on other sites More sharing options...
bradsm87 Posted November 19, 2012 Share Posted November 19, 2012 That last pic is a 1.05 which is a different housing that's going to be a lot easier to cast.If BorgWarner come out and state that the manky housings are the only way they can reliably make the shape of the .92, I'd be happy enough with it and just tidy up the inside with a Dremel. Deep down inside, I'm really hoping mine doesn't arrive like that though. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630089 Share on other sites More sharing options...
bigmikespec Posted November 19, 2012 Share Posted November 19, 2012 That last pic is a 1.05 . No it is not. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630154 Share on other sites More sharing options...
bradsm87 Posted November 19, 2012 Share Posted November 19, 2012 No it is not. The one by infamous_t ??? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630245 Share on other sites More sharing options...
GTScotT Posted November 19, 2012 Share Posted November 19, 2012 three word reply Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630259 Share on other sites More sharing options...
infamous_t Posted November 19, 2012 Share Posted November 19, 2012 That last pic is a 1.05 which is a different housing that's going to be a lot easier to cast.If BorgWarner come out and state that the manky housings are the only way they can reliably make the shape of the .92, I'd be happy enough with it and just tidy up the inside with a Dremel. Deep down inside, I'm really hoping mine doesn't arrive like that though. 100% an EFR8374 TS .92 His build here: http://www.gtr.co.uk...r-then-now.html No EWGs here... Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630336 Share on other sites More sharing options...
bradsm87 Posted November 19, 2012 Share Posted November 19, 2012 Here I was working backwards from page 43 in that build thread. That photo was posted in January. What makes you think it's current revision? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6630583 Share on other sites More sharing options...
black bnr32 Posted November 20, 2012 Share Posted November 20, 2012 (edited) read the link i posted. the customer purchased from a bw-recommended vendor. then, he phoned bw: "I just spoke with Brian Rhinehart of Borg Warner manufacturing directly. Unfortunately, the photos I have posted are of a genuine Borg Warner EFR 7670 twin scroll turbo." look at the bolt holes. waaay off center. terrible. Edited November 20, 2012 by black bnr32 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631651 Share on other sites More sharing options...
SimonR32 Posted November 20, 2012 Share Posted November 20, 2012 (edited) The complexity of the twin scroll, twin waste-gated design had a rejection rate of over 60% at the foundry with investment casting. Borg Warner tried three different suppliers for the investment cast components, all with the same results. As a result, they switched to green-sand casting around May of this year. I just spoke with Brian Rhinehart of Borg Warner manufacturing directly. Unfortunately, the photos I have posted are of a genuine Borg Warner EFR 7670 twin scroll turbo. This is how all new EFR units will be manufactured until they can significantly improve the rejection rate of the investment cast units. I asked for a timeframe of when they expect to have units available with investment cast turbine housings, but at the moment, they have no idea. If you or someone you know received an early EFR with the investment cast turbine housing, consider yourself/them lucky.ON THE OTHER HAND, Brian informed me that Borg Warner conducted extensive flow testing of the green-sand cast units and, while they are not as pretty to look at, the results were all well within the margin of error (less than 1%). In other words, the ugly units perform just as well as the pretty, investment cast units. That being said, I'm still not 100% satisfied with the inside passages of my specific turbine housing. I may return it for an identical unit if they are still in stock, provided I can get some indication that the replacement will have a better finish. Edited November 20, 2012 by SimonR32 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631722 Share on other sites More sharing options...
GTScotT Posted November 20, 2012 Share Posted November 20, 2012 WHOA.. Where did that info come from Simon? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631731 Share on other sites More sharing options...
bradsm87 Posted November 20, 2012 Share Posted November 20, 2012 Bugger. I guess my 7064 is going to look much like that. As soon as I can get my hands on the EFR 7163 with the new 0.80 divided housing, I'll be switching to that anyway. I only chose the .92 because there were no smaller divided options. It's very frustrating waiting 2 years for a turbo then it arrives and there is another turbo that's pretty much better in every way already announced. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631742 Share on other sites More sharing options...
Lithium Posted November 20, 2012 Author Share Posted November 20, 2012 ON THE OTHER HAND Wow, selective quoting by first quoter - but still, very very very very VERY disappointed in what BW are doing there. Just when I started warming to the EFR range they are blatantly being crooks, that is disgusting. Understand that they are doing these housings to fill orders, but they REALLY should be telling people (and charging as such) that the product is NOT the investment cast housing version (that is one of the justifications of the pricing and the wait) instead of just supplying them with a nasty surprise. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631752 Share on other sites More sharing options...
bigmikespec Posted November 20, 2012 Share Posted November 20, 2012 Here I was working backwards from page 43 in that build thread. That photo was posted in January. What makes you think it's current revision? It is still current mate, stop spinning rubbish. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631759 Share on other sites More sharing options...
SimonR32 Posted November 20, 2012 Share Posted November 20, 2012 WHOA.. Where did that info come from Simon? That beemer forum that was linked last page It is still current mate, stop spinning rubbish. Looks like they have changed the casting process now so he is actually right and the current ones are all going to have these new manky housings Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/53/#findComment-6631873 Share on other sites More sharing options...
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