Open box BORGWARNER EFR7670 .83 T3 IWG

T3 .83 Internal Waste Gate.
Brand New turbo, no original package.
 
The EFR 7670 is one of the smaller B2 frame turbochargers in BorgWarner's ultra-efficient EFR lineup. The 76mm OD compressor has a 57.2mm inducer at 64lb/min max flow - supporting up to 650hp with very large map width for outstanding power potential even at high boost. The 7670 is one of fastest spooling EFR turbos - and fits in a medium frame size. Ideal for small engines .
 
Why EFR?
What makes the EFR Turbo so special?
BorgWarner did their research when they designed this turbocharger design. The EFR turbo is not one great technology but many put together in one package.
Gamma-Ti Turbine wheel: BorgWarner says that the EFR's turbine wheel is "the most exciting technology"of the EFR system. BorgWarner chose to use a newer exotic metal for the Turbine wheel, it is called Titanium Aluminide(Gamma-Ti), and it is very trick. This metal is a compound that mixes the best qualities of both metals and gives the wheel higher temperature capabilities over either metal alone. On top of that, it is much ber then aluminum. Another big point is that it is about 1/2 the weight of a normal turbine wheel, this really reduces the inertia which is very noticeable on wheels larger then 64mm.
Ball Bearing: The next most talked about part of the EFR system is BorgWarner's new advanced ceramic Ball Bearing cartridge system. They designed the new cartridge system to be superior to all other ball bearing systems and journal bearings. It is well known that when a turbo is at the top end, there is very little difference between a journal bearing and ball bearing turbo, but the ball bearing will get you to the max much faster. With the EFR turbo, you will feel the much more instant turbo spool feel. One other great feature of this cartridge design is if you do have a failure, the cartridge holds the oil so you can get home even if you blew your turbo. If you are using it for a work truck that might be doing hundreds of miles in a day, this might be an indispensable feature.
Turbine Housing: The housing is not just there to look pretty, BorgWarner has designed it to be functional first. They used a 300 series stainless steel to make it extra resistant to heat and corrosion. The casting process is investment casting which yields a like machine finish on the inside and out, reducing gas friction losses on the inside and causing envy by anyone who looks at your engine bay. The Turbine housing can be polished or left as is. After heat cycling, it has a nice finished color without polishing.
Integrating the BOV and Wastegate for maximum efficiency: BorgWarner does not understand why people want to overcomplicate their turbo charging system by adding a external blow off valve, boost control solenoid and wastegate. Not only does it add cost but it also requires additional packaging requirements that a lot of engine bays can't support, this is why the EFR turbo has all of these already incorporated into the design. the CRV (compressor recirculation valve) vents the boost quickly back into the system instead of wasting it in the atmosphere and keeping the turbo speed high. The Boost Control Solenoid Valve (BCSV) will easily allow you to dial in the boost you want instead of using an aftermarket solution.