BorgWarner EFR 8374 Turbo

One of the all-time favorite turbos for Full-Race staff and our customers, EFR 8374 is engineered to support big power levels yet spool fast enough for professional time attack teams.  Extremely popular for 4cyl Evo, Subaru, Honda and 6cyl RB and 2JZ engines, the 74mm Gamma-Ti turbine wheel is an optimal match for the 62.6mm inducer / 83mm exducer FMW compressor wheel and is capable of 79lb/min airflow. Ideal for drift and time attack use, this is one of the most exciting turbos in the EFR lineup for response based engine setups. This turbo has the largest EFR compressor housing and is ideal for use in single turbo applications for the 500-800hp range, or as twin turbo applications up to 1300hp. Ceramic Ball Bearing only, watercooling optional (recommended)

Compressor Specifications

• • Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
  • Compressor Wheel OD (exducer): 83mm
  • Compressor Wheel Inducer: 62.6mm
  • Max Flow Rate: 79 lb/min
  • Built-in BOV: All EFR compressor housings incorporate an integrated compressor recirculation valve
  • Compressor Inlet: 4″ Ported Shroud Hose Coupler
  • Compressor Outlet: 2.5″ Hose Coupler w/ integrated Vband option

Turbine Specifications

• • • Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
    • Turbine Wheel OD: 74mm
    • Stainless Steel Turbine Housing
    • Turbine outlet: GT V-Band (aka 3″ V-Band) ~92mm OD for all EFR turbos

Features

• Dual Row Ceramic Ball Bearings – lowest friction and fastest spool/response, most extreme durability, built-in 2mm oil restrictor
• Watercooled Center Section – watercooling is recommended, 14mm banjo bolts
• Double seals on both turbine and compressor end for extreme durability and resistance to any oil seepage
• Boost Control Solenoid Valve Integrated to Compressor Housing
• Integrated Speed Sensor mounting provisions
• Optional Turbo Speed Sensor Kit
• Optional Turbo Speed Gauge
• The EFR 9174 is available in (4) different turbine housing configurations:
  • 0.83 A/R T3 Undivided (Internal WG) #12741008000
  • 0.92 A/R T4 Twin Scroll (Internal WG) #12741008001
  • 1.05 A/R T4 Twin Scroll (External WG) #12741019002
  • 1.45 A/R T4 Twin Scroll (External WG) #12741008003