I Would love to see what it can do, no one has any updates on it yet. Some people claim its spools just like a 6758 with hella top end, then again a lot of people compare its spool to a full frame 30r…its tough to say without seeing someone run one.
EFR for sale http://www.audizine.com/forum/showthread.php/612416-Borg-Warner-6758-EFR?p=10037131#post10037131
Have you considered any of the Mitsubishi turbochargers? They’ve got incredibly well designed scrolling area and a great range of AR sizes.
Wow thats a great price…that turbo looks very different though. No integrated DV, housing looks less quality than the regular 6758, and it looks like the comp outlet is even longer…wonder if its an early generation 6758, if so, a lot of those turbos were known to have exploding gamma-ti turbine wheels…kaboom!
That did look like a great price unless its this
The only thing I can find searching the BW part number were two ended ebay listings for non WG EFRs.
EFR used to make their wheels out of titanium alloy, and they had a few failures in their testing, but from what I recall it was a batch of 6258’s that were faulty, some guys would notice no boost, pull the turbo out and find that their turbine wheel had disappeared. pretty wacky.
Watch here ( we really need to have a video integration button)
https://www.youtube.com/watch?v=RruN0dZmBgE
However, I don’t remember any 6758 failures, but this unit also looks pretty different…most 6758’s have smoother castings and they have the integrated BOV…this one looks quite interesting. I’m not sure if the 6758 was revamped, but I know on the Mixed-Flow wheels, BW decided to recirc the diverter valve air flow right at the compressor wheel at angle so taht when you release throttle the air is shot back into the compressor wheel to help it spool even faster. Just one of their neat little tricks to help spool. That said, I don’t even see the flange for it on this turbo so it seems like a different version, perhaps much older.
For comparison.
http://www.turbokits.com/Images/Parts/rtfy6810RTimg-1846-0-xlarge.jpg?watermark=turbokitslogo.png
I didn’t think the 6758 had the mixed flow turbine?
The original doesn’t, that’s why I was wondering if it was revised, because it looks lke you can get this turbo with and without integrated dv, there might be two completely different designs for the 6758
[QUOTE=zandrew;10037770]Good eye. However they have NEVER offered that turbine housing to the public. This is actually a indy car turbo that was sold off when they swapped from 6758s to 7163s.
http://www.indycar.com/News/2013/07/7-25-Twin-turbochargers-for-2014
This is non internal WG and non internal BOV.
[/quote]
[QUOTE=zandrew;10037718]Not F1. Indy car and yes it is a real indy car turbo. Notice it looks unlike any other EFR turbo.
[/quote]
As per the OP, it came off and actual Indy car.
[QUOTE=zandrew;10037718]Not F1. Indy car and yes it is a real indy car turbo. Notice it looks unlike any other EFR turbo.
[/quote]
As per the OP, it came off and actual Indy car.
[/quote]
Welcome!
Been here awhile, I hung out in the shade:
http://www.sportsbookreview.com/forum/attachment.php?attachmentid=39131&d=1330954473
Creeepin’
That turbo is off an Indy car.
Echo 
Been awhile since I have update this thread
So update it. The B7 section has been dead for a while. It would be nice to have something worth reading instead of the “What exhaust is best?” threads on AZ.
Exactly. It was starting to grow over here for a while. It is a little crazy on AZ so this is a nice place for a change of pace.
Yea. I’ll have to get pictures of some new items and give a review on the new e85 UM sniffer lit
Kit*