So, I was looking through my 2011 Borg Warner Performance Turbocharger Catalog, and came across these EFR series turbos. Considering these are a little pricey and since we don't really have any race teams here, this probably doesn't mean much to most people, but I thought I'd share anyways...
http://www.full-race.com/articles/borgwarner-efr-turbos.html
Cliff notes
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- Gamma-Ti exhaust wheel
- Dual cage ceramic bearings
- Forged milled (billet) compressor wheels + extended tip technology
- Stainless Steel Exhaust Housings
- Improved twin Scroll design with optional internal gates
- integrated BOV/recirc valve
- Integrated Speed Sensor provisions (A critical component for race teams)
The end result is a compressor wheel map that looks similar to its slightly larger ETT s-series brother, along with ridiculous turbine efficiency and boost transience response.
So...yeah....Garrett can officially suck it
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Sorry for the botched title
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nice turbos but obviously way out of my price range....ill stick with my Garrett
RIP JESSE GERARD.....Youll always be in my thoughts and prayers...
These are amazing - zzp is making close to 500whp on a modified version of one of the smaller ones - the 6758 i think? They modified the turbine housing to make it bolt on for the LNF. For the kappa guys, these are a godsent - they retain a very effect IWG and boost control solenoid, so they are very compatible with existing equipment. Plus they spool as good if not better than stock - truely the best of both worlds. I will be rockin one before long
Getting ready to test one on an LNF....
P&P Tuning
420.5whp / 359.8wtq
QWK LN2 (needs an @ss whoopin) wrote:Getting ready to test one on an LNF....
Nice, curious to hear about results.
QWK LN2 (needs an @ss whoopin) wrote:Getting ready to test one on an LNF....
Excited!! kappa or delta? There's a kit out for the kappa, but it requires power steering res relocate and custom intake pipe. zzp needs to hurry up with their true bolt-on solution
I have to say....as I read on I really want one now. I like material used on the turbine wheel. And it list water cooling is available. But what are the details on the "airwerks" journal bearings?
And I wish my manifold had a twin scroll flange
GMR has got nothing on this
The efr are ball bearing cartridges. The s-series (e.g. s200, s300, etc.) are journal bearing turbo that have competed very well with Garrett's ball bearing turbos for years.
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oldskool wrote:These are amazing - zzp is making close to 500whp on a modified version of one of the smaller ones - the 6758 i think? They modified the turbine housing to make it bolt on for the LNF. For the kappa guys, these are a godsent - they retain a very effect IWG and boost control solenoid, so they are very compatible with existing equipment. Plus they spool as good if not better than stock - truely the best of both worlds. I will be rockin one before long
the link to the thread on cobaltss.net was posted on the srt 4 forums I'm on now...basically like you said - bolton huge numbers with insta-spool, pretty hectic...
Nice turbochargers. Well worth the price listed for all the features. I have yet to see one in use around here. Nice find, thanks for sharing.
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NCR-SCCA
Been keeping my eye on the ZZP Version
They don't have either of my turbo compressor maps on here, but this is by far one of the better all encompassing online turbo matching programs out there.
Match-Bot
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So looking more closely at these, they have an integrated boost control solenoid in line with the wastegate vac/boost source. For the LNF, this is great since it appears to be plug and play. On a non-factory turbocharged car, how would one integrate this feature? I've searched briefly for something that would plug into this hardware but cannot find anything. For example, running one of these on a Jbody, would we just bypass the BCS, or is there a way for us to take advantage?
Maybe you could directly wire in an electronic boost controller like an AEM or Eboost? Most of them just use PWM, a solenoid, and a pressure transducer - don't see why it should be much different.
Hmmm i haven't found one that doesn't come with it's own BCS. If you have to buy all the hardware, the turbo itself may as well not come with the solenoid.
I would just remove it and use an electric boost controller...
P&P Tuning
420.5whp / 359.8wtq
oldskool wrote:Hmmm i haven't found one that doesn't come with it's own BCS. If you have to buy all the hardware, the turbo itself may as well not come with the solenoid.
Some systems have the capability to drive a BCS directly (e.g. megasquirt).
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We carry them
Much cheaper than most places also!
-Aaron
www.TurboTechRacing.com
Performance Parts For Cavalier, Sunfire, Cobalts and More!!!
QWK LN2 (needs an @ss whoopin) wrote:Getting ready to test one on an LNF....
Did you guys ever test it, Ryan? I'm particularly interested in spool and transience results.
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What ever came of this interested in the numbers
RIP Cpl Derek Kerns And Cpl Robby Reyes
24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
Unfortunatly No.... Everything was ordered, then the car was sold....
Working on trying this on another car here soon... May be replacint a 252ET with it....
P&P Tuning
420.5whp / 359.8wtq
ill be ordering the 7670 here in a few weeks so if you dont get a chance to atleast we will see one on a hydrid eco j body lol
RIP Cpl Derek Kerns And Cpl Robby Reyes
24th MEU VMM-261 (REIN) V22 Crewchiefs
11 April 2012 Morocco (African Lion)
Whalesac wrote:oldskool wrote:Hmmm i haven't found one that doesn't come with it's own BCS. If you have to buy all the hardware, the turbo itself may as well not come with the solenoid.
Some systems have the capability to drive a BCS directly (e.g. megasquirt).
I believe most standalones can. And with how much this turbo costs and how much power you'll make it would be silly to not go stand alone on a j-body. You'll make more power, with better throttle response, and be less likely to break things.
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