Umm...SRT4 and Genesis Coupe Turbo both have it

 

Now that i have looked there are more. Those 2 and the Skye (turbo eco-tec) as well. In fact it looks like they have the same style of compressor cover:

 

Newer GTIs have an integrated DV too.

 

you are correct, the T25 and T3 are singlescroll while T4 is twinscroll. We recommend the Evos run a T4 twinscroll manifold with dual external wastegates - this is the same setup sierra sierra is using. the compressor and turbine wheels outperform anything weve seen, from any turbo mfg. In fact the twinscroll EFR with 58mm turbine wheel was recently able to hit 30psi boost at 2000rpm on a test engine, ill post up detailed results of that test shortly after SEMA, really incredible


we've got you covered - there are (2) EFR turbos slotted in the range you are looking for. I'd recommend the larger one being the EFR 76-70 and 1.05 a/r turbine housing. Email us at sales@full-race.com with phone number and we can get you on the EFR pre-order list

BW is the OEM for many companies, porsche included obviously. From what ive seen, it seems like the integrated recirc valve will be on everything in a few years

 

With good reason, why heat soak the intercooler only to let the air that you cooled out? Besides the more obvious gains in response

aaron

 

How does a 1.05 A/R T4 turbine housing cover a range of turbine sizes from 55mm-80mm?

Or is it simply not intended for under a certain turbine size? Seems like the 70mm turbine would be bigger then needed for the high 40/low 50 lbm range compressors and the 64mm or 58mm wheel would be too small for such a large housing.

 

Geoff, the double row ball bearing, is that like 2 angular contact bearings back to back or what? Then what kind of bearing is at the other end of the shaft?

 

Anything for the 1000-1200hp area Geoff? Sorry not a Mitsu, 3L inline 6 ;p Still T-4 setup though. Thanks in advance.

 

So I should get the intergated bov and sell my brand new Tial?

 

Is possible upgrade traditional S300/S400 turbine with this new desing? I assume these new turbos are extremely expensive 2000$+++??

 

The only thing the same is the name Borg Warner on the turbo. So no.

 

Not necessarily. If you were planning on running this turbo in road racing or rally I would certainly consider it. If it is available without the integrated BOV, drag racing probably wouldnt see as much benefit since there is far less shifting and getting on and off throttle.

 

Will BW have compressor maps available for the EFR series?

l8r)

 

the integrated BOV comes standard on every turbo. You have three options:

1) run the built-in BOV
2) disable it and use the tial
3) run both

i would pick option #1 personally, but it will be interesting to log boost during gearshifts with the different BOV combinations to see which has the fastest boost recovery

i agree, i expect the response to be better becuase the turbo is keeping spooled, and the compressed air is not going through the core just to be released, so reduced heat input into the intercooler core

the largest of the EFR series is called the EFR 91-80 and has a 67mm inducer with true 1000hp potential. I suggest that option for many high power setups becuase i dont know of any other 1000hp capable turbo that can spool or respond as fast as this.

if you need more than the EFR 91-80 can put out, you will need to look at some of the S400SX airwerks turbos

yes, all will be released Nov 1st at the start of SEMA

All the EFR turbos come with the integrated BOV. if the end user doesnt want to use it, you just install the disabling cover plate and that locks the diaphragm shut

it is not possible, they share nothing in common


the small 55mm turbine wheels are T25 .64 a/r only (internal WG). the mid->large turbine wheels are .83 a/r T3 flanged (internal WG), .92 a/r T4 twinscroll (internal WG) or 1.05 a/r T4 twinscroll (External WG req'd)

Keep in mind, all of these turbos were "clean sheet" meaning each housing was designed for each wheel, and the wheels for the housings. Each wheel/housing combination has a "sweet spot" of turbine efficiency and incidence angle, which is not lost in the different A/R combos

 

Any cars out there running this turbo yet, what do you think the spool will be on a 2 liter evo?

Any idea on pricing?

Fathouse