Hi all, I was wondering if you could help me with this. I was looking at the Borg-Warner EFR turbos on Diesel power products and was wondering if anyone has bought one of these and if so, if anyone knows if they're an internal or external waste gate setup. Sorry if it's a stupid question, thanks in advance for information. If there's a more appropriate place on this forum, please move this thread there, first time posting on here.
BorgWarner EFR turbos
- Thread starter Powellbr
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I know a few people who have tried them. They all ended up melting them or overspeeding them. Pretty sure they are internally gated.
You can get them without a gate, but they don't seem to last on diesels. On the other hand, they're fantastic on gas engines.
What's your power goals, stock bottom end? Will a big hoss manifold even work with a charger in the valley?
Adam most turbo failures come from wrong usage/application issues. If you put a smaller light weight wheel turbo on your diesel truck they tend not to last because guys over drive the charger. They just push them so hard trying to accomplish a unrealistic number. Then they say "look at me, I'm making 800 hp on a 64 to 66 mm charger". In the right application I'm sure they will work just fine. You need to know their limits and stick to the limits.
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JDub ran one for about 18K until it finally shaped the Turbine Shaft. He said you have to be very careful not to over speed it and it only ran 30ish PSI of boost.
http://www.duramaxdiesels.com/forum/showthread.php?t=47789&highlight=efr&page=6
http://www.duramaxdiesels.com/forum/showthread.php?t=47789&highlight=efr&page=6
I completely agree with you. From what I've seen the EFR's are the wrong turbo for our trucks. Nobody's going to spend $2500 on just the turbo so they can hit 500-600hp. As I said above, they're fantastic on gas engines.
I believe the service temp on the TiAl turbine wheel is around 1500F. Much exposure above that and it's toast.
And they can't make them larger than the current size range and have any durability....so there yo go, too hot and too fast is almost a certainty.
And they can't make them larger than the current size range and have any durability....so there yo go, too hot and too fast is almost a certainty.