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ShaggyZ

Borg Warner EFR Turbocharger line

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ShaggyZ    10

Perhaps the most thorough coverage of these new turbos is at Full Race - http://www.full-race...efr-turbos.html

 

The turbochargers have been completely redesigned with some pretty cool features that, if truly functional, may justify the ~$1500 price tag. They all come with integrated Boost Control Solenoids and speed sensor ports; many of them come with well-designed integral wastegates, and the actuators bolt to the center housing instead of the compressor housing so you can spin the housing to just about any rotation you need; integrated by-pass valve (ie recirculating blow-off valve). They say these features are actually useful and efficient even in high horsepower applications and have OEM/high quality durability. I'm intrigued.

 

The BorgWarner EFR turbo is set to become the new world standard for performance turbocharging due to the high-technology feature package, unbeatable performance, and installation convenience. The EFR turbocharger was designed and manufactured with only one purpose in mind: to dominate the street, track, and strip. (7) different sized turbos, optimally matched for the 250-1000hp per turbo segment - and in (4) different turbine housings are the result. The combination of this top-shelf geometry and the Gamma-Ti turbine wheel significantly raises the bar for performance aftermarket turbochargers. Combined with our ball bearing technology, it is the most responsive range or turbos that are available anywhere, at any price. The EFR series covers all applications except the hardcore drag racers. For those hardcore customers, we still offer the highly popular S400SX and S500SX product lines, and will continue to update those turbos during the next year.

 

efr-overview-2.jpg

 

 

I did a search for EFR and came up empty.

Edited by ShaggyZ

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ozzzzz    0

Perhaps the most thorough coverage of these new turbos is at Full Race - http://www.full-race...efr-turbos.html

 

The turbochargers have been completely redesigned with some pretty cool features that, if truly functional, may justify the ~$1500 price tag. They all come with integrated Boost Control Solenoids and speed sensor ports; many of them come with well-designed integral wastegates, and the actuators bolt to the center housing instead of the compressor housing so you can spin the housing to just about any rotation you need; integrated by-pass valve (ie recirculating blow-off valve). They say these features are actually useful and efficient even in high horsepower applications and have OEM/high quality durability. I'm intrigued.

 

 

 

 

I did a search for EFR and came up empty.

 

Very cool.Ball bearings to boot. First time I've seen them on a BW. Wish I had one.

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ozzzzz    0

I'd like to see a comparison between the Borg Warner EFR and the new Garrett GTX series; I'm trying to decide between one of the two...

They are still not available to the public. Would be a good comparison. My friend is sponsered and will be getting his within the week.

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jessejames    11

I've got the efr 6258. I'm really impressed with the build quality and the packaging. I've not installed it yet as its too cold. Heres a couple of pics.

 

http://img52.imageshack.us/img52/7401/20110121140017.jpg

 

20110121140031.jpg

 

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20110121140123.jpg

 

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20110121140109.jpg

 

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calpoly-z    10

Seriously considering the 6758 for my build as well. I'm not looking to make a ton of power, but I want a very responsive motor. I love how quickly the stock T3 responds but not how inefficient it is at higher boost levels. I dont like that the 6758 only comes with a T25 flange but I know there are adapters out there for that. To bump up to a T3 flange requires going with the 7064 which seems like far more tubo than I need. A physically smaller turbo appeals to me as well due to the fact that I've got an A/C compressor mounted on that side of the engine too that has to be worked around. Plus the 7064 is about $300 more.

 

The ~$1500 for a 6758 really doesn't seem that bad considering there is no need for an external wastegate/plumbing (~$2-300), the intergrated BOV makes intercooler pipe routing clean and simple (~100), and the included boost solenoid is just one less thing to buy (~$40) and I can control it with MS (most likely). It was going to cost me at least $7-800 to get my stock turbo rebuilt and turned into a T3/T04E. Or I can spend an extra $6-700 and get a brand new state of the art turbo that should help me better reach my goals with a limited investment in time from me. (Time being the hardest thing for me to come by right now). Hell, I think I may have just talked myself into it. :)

 

Now the problem may be sourcing one. Most suppliers I've seen so far are out of stock.

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calpoly-z    10

Really tried hard to get an EFR ordered for my car, but they are basically unobtainable. Most places are quoting a 4 to 8 month backorder. Quite a bit longer than I want to wait.

 

Looks like I'm going to end up buying a GT3071 with a 0.63 ar Ford T3 housing and use an ATP ultimate internal wastegate. Piecing this turbo together makes me realize how great a deal the EFR is. The garrett is going to be almost $1600 by the time I get the wastegate and actuator. And I'll still be short a BOV and boost solenoid. The 6758 is listed at around $1450 or so. Oh well. Should still end up with a great turbo for what I want out of my engine.

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ArizonaZ    10

I know that this is an old post, but I'm curious if there has been any more experience with these turbos. I see that the new EFR 7163 seems to be a great turbo for the Subaru guys. Looks like the performance of the 7064, but a spool time closer to the 6758. What do you guys think about fitting that on an L28ET?

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malibud    0

I have a EFR 7064 on my L28. I really like it. Wish I could go a little smaller on the exhaust side but all in all a great turbo. Snug fit but it works. Spools quick but I cant wait to install ported header and refreshed head.  I don't have much to compare it to I had a Garrett with a 1.06 exhaust previously.

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