Jump to content
SAU Community

[Closed] Borg Warner Efr Series Turbos

Lithium

By Lithium,
in Engines & Forced Induction

 Share

Recommended Posts

  • Replies 3k
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Lithium
Lithium

Hi all!   I've not really been active on this forum for some time and although I lurk in to read bits and pieces of interest I don't really think of this as a forum I'm part of but I once was and I di

R32 TT
R32 TT

Haha - yeah it could use some more boost Simon..  I'm sorry I've not put up Motec logs in the past for those who've wanted to see. Back at the time I did a bit of comparing because I did more or

Full-Race Geoff
Full-Race Geoff

mr skidz, your posts are coming off as trolling at this point.  do EFR people go into precision threads and talk about how great their mates setup is, but wont give any details??  whilst complaining t

Posted Images

simpletool Mentor

simpletool

Posted
Posted

Another EFR faluire on EvolutionM forum. Im feeling sorry for the guys that've been waiting for over a year for there turbo to have this in the back of there mind - When i actually get my turbo will it fail. :(

I can say the car is stinking fast. First two sessions of the shake down run were great. Went out for the third session, hit the back straight and see a m3 passing me while at WOT. I'm thinking wait how is that even possible (Nobody could even come close to my backstraight speed.)Look down.... 0 boost and a supercharger like whine. Limped it in to see if it was any easy fix.

Luckliy I had the guys from RRE down doing track support so they checked and found no boost leaks and from the intake side it looks like the wheel started digging in to the inside of the housing. It SO hard to see. Running the car, There is a heavy metalic like whine, and with the intake off and putting your hand over the intake side it definently sucks... no leaks everything bulges like it should. The one interesting thing is that when you stop the car... the wheel just stops instantly... typically I was told on a BB turbo the wheel keeps spining.. this just comes to an abrudt stop.

So the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday.

So, the turbo is off and as far as RRE can tell the bearings are fine. The turbo does not spin because the shaft is bent. That is making it bind on the bearings. One sise of the compressor wheel has relatively undamaged blades. They do not contact the housing. On the opposite side of the wheel the blades are all ground away. We are pretty sure that it wasn't caused by the prior motor’s death.

To be continued:

Perhaps having such a distance between the bearing races isn't such a good idea then? - Wondering if the heat trapped in the housing is causing warping.

Full-Race Geoff Rising Star

Full-Race Geoff

Posted
Posted
"the car is headed back down to RRE for the turbo to be removed and inspected... But if it was damaged from the original issue, I'm wondering if that may have been part less then stellar results? I don't really know... but I'm trying my hardest to get a solution together before Tuesday. So, the turbo is off and as far as RRE can tell the bearings are fine. The turbo does not spin because the shaft is bent. That is making it bind on the bearings. One sise of the compressor wheel has relatively undamaged blades. They do not contact the housing. On the opposite side of the wheel the blades are all ground away. We are pretty sure that it wasn't caused by the prior motor’s death"

ryan, i have spoken with this owner/driver many times over the last few days.. he has gone through (3) longblocks in 5 months. of course he had no filter in the oil feed line, so it seems possible the turbo might have received oil with pieces of oilpump/thrust bearing/piston fragments in it. FWIW on his brand new fresh motor he only got (1) lap in before the engine grenaded, and it was still fast enough to get him 4th fastest overall. The turbo is still good per his reports, we will get this turbo to BW for analysis - its possible the bent shaft assumption is incorrect and we will find metallic pieces inside of his bearing housing..

It's been an unfortunate series of events to be sure. Had BorgWarner known they were going to run into the production woes from their vendors they certainly would not have launched the product. Fact is, most turbos are holding up just fine. They have determined the culprit of those that have failed and all have derived from one vendor, and the problem only arose AFTER they were mass producing them. We have several that are in use now, taking plenty of abuse and no signs of failure on the horizon. I can say that the turbos we are getting now are solid, but very sparse. It will be another 7-8 months before these turbos are sitting on my shelf, in inventory, waiting for new orders. We see a lot of upside to these turbos, A LOT. It's just been overshadowed by production speed bump after speed bump.

completely agree.

Sub Boy32 Rising Star

Sub Boy32

Posted
Posted

Ominious.... hope this means the blue beasts heart will be getting a new friends soon:)

Yes...It's been on life support for almost a year :wacko:

I will have to wait for the manifold to be finished, as it has just been tacked at the moment to check for fitment, as the BW EFR is a bit different in shape, Then I'll get the manifold and the EFR's exhaust housing HPC coated, and probably the front pipe too.

....Oh and I have a RacePak IQ3 dash coming for it too....:banana:

Sub Boy32 Rising Star

Sub Boy32

Posted
Posted

Well.............

The Mythical White Elephant arrived today!! 9.5mths, It's been longer than making babies!

Serial number #13.....Hope it's lucky for me!

Thanks again to the guys at Full-Race (Geoff,Raffi,Brett,Aaron) for putting up with my constant emails, Just got to wait for the manifold to be finished, and some pipework to be built....Then it's tuning time!

837492IWG.jpg

TheKeeper Contributor

TheKeeper

Posted
Posted

Well.............

The Mythical White Elephant arrived today!! 9.5mths, It's been longer than making babies!

Serial number #13.....Hope it's lucky for me!

Thanks again to the guys at Full-Race (Geoff,Raffi,Brett,Aaron) for putting up with my constant emails, Just got to wait for the manifold to be finished, and some pipework to be built....Then it's tuning time!

837492IWG.jpg

No worries mate. Good Onya! (that's about all I know)

Sub Boy32 Rising Star

Sub Boy32

Posted
Posted

Awesome Chris, hope all goes well for you - glad its at least finally here :) So what boost level are you tuning for again? Pump gas?

I will only be running 98 pump gas, So will depend on what the tuner manages to get out of it....Hopefully Lots!

I will change to E85 when it becomes available at the pump.

....Oh and the RacePak IQ3 digital dash turned up today! It's like Christmas!:cheers:

Guest
This topic is now closed to further replies.
 Share
Go to topic listing


×
×
  • Create New...