Chis-Tech

BorgWarner EFR-8374 Turbo - T4 TwinScroll without WG 1.05ar - 179393

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BorgWarner EFR 8374 Turbo 

EFR 8374 is engineered to support big power levels yet spool fast enough for professional time attack teams. 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. This is one of the most exciting turbos in the EFR lineup for the high-power addicts. 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 BOV.
  • Compressor Housing Connections:
    • Inlet: 4″ Ported Shroud Hose Coupler
    • 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 – The EFR 8374 is available in (3) different turbine housing configurations, all use 3″ vband (92mm OD): [list]
  • 0.83 A/R T3 Single Scroll (Internal WG) – Part # 179258
  • 0.92 A/R T4 Twin Scroll (Internal WG)- Part # 179357
  • 1.05 A/R T4 Twin scroll (external WG)- Part # 179393

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