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.
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
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.
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
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