BorgWarner 179375 EFR 6758 Super Core B1 Turbo Gamma-Ti Ball Bearing Iron CHRA

Vehicle Fitment

Universal fitment -- designed for custom turbo builds on any engine platform

Fitment Notes

• Super Core only -- does NOT include turbine housing, clamp plate hardware, wastegate, or actuator
• Compatible with all BorgWarner EFR 6758 turbine housings (T25, V-band, twinscroll T4)
• Turbine outlet uses GT V-band connection (~92mm OD) common to all EFR B1 turbos
• Also compatible with third-party turbine housings designed for the EFR B1 frame
• Not CARB legal -- not for sale in California

Features

• Forged-milled compressor wheel (FMW) with extended tip technology
• Low-inertia Gamma-Ti turbine wheel reduces rotational mass by ~50% vs steel
• Dual-row ceramic ball bearing cartridge with metal cage for fastest spool and extreme durability
• Cast iron CHRA for maximum strength and heat resistance
• Integrated compressor recirculation valve (CRV/BOV) built into compressor housing
• Integrated boost control solenoid valve (BCSV) in compressor housing
• Double seals on turbine and compressor ends resist oil seepage
• Built-in oil control orifice -- no external oil restrictor required
• Watercooled center section with 14mm banjo bolt ports
• Speed sensor mounting provisions on compressor cover

Specifications

• Turbo Frame Size: B1
• CHRA Material: Cast iron
• Compressor Wheel Inducer: 53.9mm
• Compressor Wheel Exducer (OD): 67mm
• Compressor Inlet: 2.5" (63.5mm)
• Compressor Outlet: 2.0" (50.8mm) hose coupler
• Max Compressor Flow Rate: 49 lb/min
• Turbine Wheel Inducer (OD): 58mm
• Turbine Wheel Exducer: 51mm
• Turbine Outlet: GT V-band (~92mm OD)
• Bearings: Dual-row ceramic ball bearing with metal cage
• Power Range: 250-500 HP (single) / 500-1,000+ HP (twin)

Included Components

• 1x EFR 6758 Super Core assembly (compressor housing + CHRA)

Product Description

The BorgWarner 179375 EFR 6758 Super Core is a high-performance B1-frame turbocharger assembly featuring a forged-milled 67mm compressor wheel, low-inertia Gamma-Ti 58mm turbine wheel, and dual-row ceramic ball bearing cartridge in a cast iron center housing. The compact B1 frame fits tight engine bays and twin-turbo V6/V8 applications, while the broad compressor map supports 250-500 HP in single turbo builds and 500-1,000+ HP in twin configurations. Sold as a Super Core only -- turbine housing, wastegate, and actuator must be purchased separately to complete the assembly.