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Garrett Better Pull Up There Panties

B

Boyko

Well-known member
I have been a big fan of Garretts Gt turbos……….But man the EFRR (earth friendly race ready)
by BorgWarner makes the Garrett look like one of those pop can turbos you see on Youtube.

I started sourcing out parts for a turbo propane project and needed a turbo with a higher
pressure ratio than the 2871. The compressor wheel on the 28 series Garretts can not handle rpm.
This new EFR turbo raises the bar something fierce.



6258.jpg
2871.jpg


The Fist Map Is The EFR 6258. Second is the 2871. The red dot on the maps is around 290hp at
18psi boost, blue dot is 26psi. The Garrett looks like it is just as efficient but the garret is spinning
a 71mm compressor and the EFR is a 62mm wheel that spins 40,000 rpm higher, it is going to sound wicket.
Because of the super light turbine and compressor this thing will spool if ya breath on it to hard


Pricing is close, a 2871 is around 1250.00 the EFR is about 225.00 more but look at what you get

-Gamma-Ti turbine, this is half the weight of a Iconal turbine
-Forged CNC compressor wheel
-Stainless Steel Turbine Housing, V-Band exit
-High Flowing waist gate, this is really cool how that did the transition
-Built in Blow Off Valve, cool again with the transition
-Boost Control Solenoid Valve Integrated to Compressor Housing
-Integrated Speed Sensor mounting provisions
-Dual Row Ceramic Ball Bearings - lowest friction and fastest spool/response,
most extreme durability, built-in oil control
orifice - (aka oil restrictor) **no restrictor can be used with EFR turbos

Most importantly is the amount of engineering that went into the EFR design,
the aerodynamics that were developed for this turbo are unsurpassed and
are not comparable to anything else out there

BorgWarner are really pushing the propaganda on this turbo, sorry I am kind
of caught up in it, I have spent some time researching these turbos and can
not find any real criticism on them


efr-6258-2.jpg
efr-6258-3.jpg


efr-compressor.jpg
efr-6258-turbo.jpg
 
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that is a very cool turbo should work spectacular on 4s sleds i have read good things about them but they are still pretty new guys are starting to use them on diesels now too..:face-icon-small-ton
 
Who's selling them in Canada and the US it is a nice looking piece? Do they have a 2860 replacement for guys not wanting 500 hp LOL?

M5
 
Its a good turbo. I have a buddy that ran the efr 6255 last year in his nytro. It ran good, not any better then a garrett though. the main problem he had with it was that long a## turbine housing, and getting it top fit in a midmount.
 
The 6258 is close to the 2871, the turbine is 4.1mm larger on the efr, I was told it will spool faster with less exhaust pressure. The Garrett GTX has a more efficient and robust compressor wheel that is comparable to the EFR, but it does not have the other features. The problem is this turbo is hard to get now, there are production problems and BorgWaren are under contract with Indy or cart to supply this turbo to them. The ruling states they have a choice between running two 6558 or one 91mm turbo.

I ordered one from Full Race the price was 1455.00 with a one year warranty. I was told that they would not be receiving stock for probably 5 months.

Talking to the tec at full race I realize there are some concerns with this turbo but I am going to give it a try anyway:face-icon-small-dis.
 
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Its a good turbo. I have a buddy that ran the efr 6255 last year in his nytro. It ran good, not any better then a garrett though. the main problem he had with it was that long a## turbine housing, and getting it top fit in a midmount.


Who's sled was that Zeb?
 
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