same JustinOlson from Honda-tech with the turbo Audi?

 

The only thing I can say right now is that the 2011 BorgWarner EFR series are the highest technology turbos ever available to the aftermarket. They are engineered to deliver market leading performance through the use of top shelf materials and uncompromising design philosophy. Sierra Sierra will be one notable team putting the EFR technology to use. Pics and full specs will be coming at the end of october once the intellectual property for the EFR technology is wrapped up 100%

Also, the BorgWarner shootout is this weekend at Englishtown, NJ .

If you are stuck on using singlescroll, there will be some options in the EFR lineup to suit those style turbokits and your power goals. There are no singlescroll T3 turbos in the current airwerks lineup however

If you are willing to go to a twinscroll setup, I strongly encourage it. Waiting for the new EFR series could also be a good idea.. The gains in a hillclimb/road course application are so great that any experienced driver will tell you unequivocally the improvement in throttle response and low-mid rpm tq is monumental. The fact that this road race/time attack powerband carries over so well in a street application is what makes the twinscrolls so popular, and the center of heated debate.



i dont know the basis for any of their decisions. Full-Race has no input on that, but you are correct the majority of turbine wheels are manufactured from inconel, then friction welded to a 4340 shaft. the garretts, the airwerks turbos, etc.

 

Glad to know you're alive Geoff!

<-patiently waiting.

 

I hope they don't do this thing where the turbine outlets are these weird things that don't interchange with anything else out there.

I hope that the smaller turbos will be available with some selection of turbine housings that are directly interchangeable with the T31 Garrett style undivided housings with the 4 bolt 2.5 inch outlet. Then lots of people can switch to a BW without changing a bunch of other stuff too. As far as I know there are still lots of people interested in a new technology T3 turbo in the 45 to 60 lb/min size range, which is what I'm calling "smaller". Maybe not so much here in evo land where there are good bolt-on turbos that size. But I know the SRT4 people would be interested, and the DSM and the other 4 cyl people would too, as well as the twin-turbo people with 6 or 8 cyl cars.

 

there will be options for both. the game changers come first

 

Eagerly awaiting word on these new EFR Series BW Turbo's.
I'm holding out on building a twin scroll T3 Holset HX35 set-up for road racing in favor of a twin scroll T4 Borg Warner set-up...

 

I would definitely recommend waiting. Holset has no place in the aftermarket, and they are such a pain to work with. BW is a much better option.

 

Nope not hung up on single scroll, that was just for ease of conversion. I have since discussed it with our lead R&D engineer and he'll be doing a TS manifold for me for this turbo.

In that case, I assume there is a turbo in that range if I wait?

Thanks

Aaron

 

The EFR compressor wheel OD's range from 62mm-91mm a bit more info here: http://www.full-race.com/articles/bo...fr-turbos.html Also all EFR compressor housings come setup for an optional turbo shaft speed sensor

 

I hope they don't go to the lengths that Boeing did to do this. Boeing created a subsidiary called "The Boeing Management Company" which owns the intellectual property of the company. Nobody knew what this "Boeing Management Company" was. I had to ask the Boeing Historian what it was. He knew.
I have no idea how long it took them to set it up.

 

So they will have some small ones. 62mm would be smaller than any of the current S200SX's I believe.

 

Are we talking inducer or exducer? My assumption would be inducer, in which case it's a 300 series?

BW/Airwerks 2010 Catalog
http://www.airwerksboosted.com/Files...talog-2010.pdf

 

Could compare to a Bullseye S362?

http://www.bullseyepower.com/S300.asp

 

we are talking exducer -- this is the most important compressor wheel measurement in my opinion.

the 62mm exducer turbo is the smallest EFR turbo from borg warner and is something that would make sense on a small turbo 4cyl or for a twin turbo V6/V8 engine. the popular "disco potato" turbo from garrett is a 60mm exducer for sake of comparison

the 91mm exducer turbo is the largest EFR turbo from borgwarner, and will be a bit larger than the hta86/gt4088R, yet smaller than the 4094R, 42R and hta3794R size compressors.

 

good to hear the focus on compressor wheel size is consumer based

I for one think that its a nice spread of sizes from BW.