bradsm87 Posted July 18, 2013 Share Posted July 18, 2013 How do you guys running the EFR turbos find the boost recoveries between shifts compaired to similar turbos in the garrett range?? My EFR 7064 recovers from shifts around the same as a GT2871R. Pretty good considering the 2871 has a 54mm turbine wheel and the 7064 has a 64mm one. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6933493 Share on other sites More sharing options...
Lithium Posted July 18, 2013 Author Share Posted July 18, 2013 Gotta love modern turbo tech - a 56lb/min turbo responding like a <45lb/min turbo... its a pretty sweet age when you can go for 25% more power and not loose any response 1 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6933619 Share on other sites More sharing options...
r33_racer Posted July 20, 2013 Share Posted July 20, 2013 Has anybody heard of any serious failures with these things in racing conditions? I mean like the behind the scenes kind of thing that doesn't get released till much later on. In particular the 8374 turbo? Later on down the track were looking at possibly switching to this unit to replace our GT35r's that have been rebuilt god knows how many times. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6935903 Share on other sites More sharing options...
Sub Boy32 Posted July 20, 2013 Share Posted July 20, 2013 Has anybody heard of any serious failures with these things in racing conditions? I mean like the behind the scenes kind of thing that doesn't get released till much later on. In particular the 8374 turbo? Later on down the track were looking at possibly switching to this unit to replace our GT35r's that have been rebuilt god knows how many times. I haven't seen many Indy Cars drop out this season with engine problems..... Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6936282 Share on other sites More sharing options...
discopotato03 Posted July 20, 2013 Share Posted July 20, 2013 Late getting back to this and Geoff Raicer in particular .<br />There are limits to what you can use on a standard exhaust manifold and I reckon if there were suitable TS IW T3 flanged turbos available the standard manifold mob would be better off .<br />I'm particular and I can't have everything as I'd like it even with a single scroll IW turbo . At the end of the day I probably need more cubes so I can have the stronger low down part throttle torque and less reliance on FI to do the job properly .<br /> Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6936390 Share on other sites More sharing options...
bradsm87 Posted July 22, 2013 Share Posted July 22, 2013 For next time Geoff check this thread: Will the .80 divided housings only be for B1 frame turbos or will they do it for the 7064 as well? I'd be soooo keen for a little smaller housing on my 7064 to get full boost under 3000rpm Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6939006 Share on other sites More sharing options...
discopotato03 Posted July 23, 2013 Share Posted July 23, 2013 Brad is your 7064 mounted on a standard RB25 manifold and if so can we see some pics of it . It'd be interesting to see a bolt on one in an R33/34 engine bay . Cheers A . Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6939664 Share on other sites More sharing options...
GTScotT Posted July 23, 2013 Share Posted July 23, 2013 Brad is your 7064 mounted on a standard RB25 manifold and if so can we see some pics of it . It'd be interesting to see a bolt on one in an R33/34 engine bay . Cheers A . It's an SR20 with T4 TS. Welcome to the thread. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6939675 Share on other sites More sharing options...
discopotato03 Posted July 23, 2013 Share Posted July 23, 2013 I did look in your sig before I asked the question and wasn't going back a dozen pages to check what you run . Does anyone here have a 7064 on an RB engine ? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6940632 Share on other sites More sharing options...
Lithium Posted July 23, 2013 Author Share Posted July 23, 2013 I am not aware of any, though I suspect it would work really well. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6940802 Share on other sites More sharing options...
GTScotT Posted July 23, 2013 Share Posted July 23, 2013 I did look in your sig before I asked the question and wasn't going back a dozen pages to check what you run . Does anyone here have a 7064 on an RB engine ? Actually it was on page 61, this is page 64. Thus my commentary. Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6940903 Share on other sites More sharing options...
Full-Race Geoff Posted July 24, 2013 Share Posted July 24, 2013 I did look in your sig before I asked the question and wasn't going back a dozen pages to check what you run . Does anyone here have a 7064 on an RB engine ? Most of our RB customers use the 8374. however there is a drift team in southern California "Animal Auto" using RB25 with EFR 7064. here is the motor setup: Also on their FB page: https://www.facebook.com/AnimalAuto, check the vids from april 11 and may 21, the engine does not sound like most RB25's For next time Geoff check this thread: Will the .80 divided housings only be for B1 frame turbos or will they do it for the 7064 as well? I will ask - I do not know the answer to that one I haven't seen many Indy Cars drop out this season with engine problems..... Correct - in the last 2 years all Indycar teams are using off-the-shelf EFR6758 or EFR9180 and zero turbo failures to date In particular the 8374 turbo? Later on down the track were looking at possibly switching to this unit to replace our GT35r's that have been rebuilt god knows how many times. the 8374 is a really, really good turbo, my favorite turbo ive ever had on my RB26. If you are coming off a GT35R you will not be disappointed. We have this available as T3 or Twinscroll T4 IWG right now. (1.05 a/r still has a very long backorder ) Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6941147 Share on other sites More sharing options...
Lithium Posted August 25, 2013 Author Share Posted August 25, 2013 Here's a fun little clip (if anyone is familiar with the old High Octane DVDs the sensor of humour and style will be familiar - this is a little tongue in cheek) with an EFR7670 showing it's worth on an E85 fuelled EJ STi WRX: ("700hp" is actually ~450kw @ 4 hubs): 2 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-6987689 Share on other sites More sharing options...
cobrAA Posted September 10, 2013 Share Posted September 10, 2013 so i was told someone managed to get 626whp at 18psi on a rb26 with twin 6258.. NOTBAD Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7012923 Share on other sites More sharing options...
Lithium Posted September 10, 2013 Author Share Posted September 10, 2013 On what fuel? Any more info? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013009 Share on other sites More sharing options...
omnigear Posted September 10, 2013 Share Posted September 10, 2013 i tried to search the thread what is the comparable turbo to the -9's? Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013199 Share on other sites More sharing options...
Lithium Posted September 10, 2013 Author Share Posted September 10, 2013 They don't do twins that small, EFR6258 shouldn't be far off in response but would make a crap load more power Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013240 Share on other sites More sharing options...
Lithium Posted September 10, 2013 Author Share Posted September 10, 2013 A single EFR7670 would however be more responsive and make more power than -9s Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013243 Share on other sites More sharing options...
omnigear Posted September 10, 2013 Share Posted September 10, 2013 They don't do twins that small, EFR6258 shouldn't be far off in response but would make a crap load more power Thank you ^_^ A single EFR7670 would however be more responsive and make more power than -9s Not looking for top end , high 5's low 600 awhp and tears asphalt. Looking at cost for custom exhaust mani to keeping stock and having twins also ^_^ I want that balance instead of just gobs of power on top. 1 Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013325 Share on other sites More sharing options...
Lithium Posted September 10, 2013 Author Share Posted September 10, 2013 Thank you ^_^ Not looking for top end , high 5's low 600 awhp and tears asphalt. Looking at cost for custom exhaust mani to keeping stock and having twins also ^_^ I want that balance instead of just gobs of power on top. The single is smaller, more responsive than the twins. 6258 are capable of heaps Link to comment https://www.sau.com.au/forums/topic/341890-closed-borg-warner-efr-series-turbos/page/64/#findComment-7013360 Share on other sites More sharing options...
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