Chis-Tech

BorgWarner EFR-7670 Turbo - T4 TwinScroll WG 0.92ar - 179390

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BorgWarner EFR 7670 Turbo 

BW’s EFR 7670 is ideal for responsive street driven vehicles as well as road racing and time attack applications. EFR7670 delivers early spool with a healthy 64lb/min compressor flow.

BW utilizes their 70mm Gamma-Ti turbine wheel as the optimal match for the 57.2mm inducer / 76mm exducer FMW compressor for unmatched response. This turbo uses the mid-size EFR ported-shroud compressor housing, great for fitment in cramped engine bays. An excellent fit for use in single turbo applications for the 400-600hp range (up to 2.6L), or as twin turbo applications 800-1200+hp. Ceramic Ball Bearing only, watercooling recommended.

Compressor Specifications

  • Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
  • Compressor Wheel OD (exducer): 76mm
  • Compressor Wheel Inducer: 57.2mm
  • Max Flow Rate: 64 lb/min
  • Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
  • Compressor Housing Connections: [list] [*]Inlet: 3.5″ Hose Coupler
  • Outlet: 2.0″ Hose Coupler

Turbine Specifications

    • Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
    • Turbine Wheel OD: 70mm
    • Stainless Steel Sand cast Housing

The EFR 7670 is available in (3) different turbine housing configurations:

  • 0.83 A/R T3 Single Scroll (Internal WG) – Part # 179351
  • 0.92 A/R T4 Twin Scroll (Internal WG) – Part # 179390
  • 1.05 A/R T4 Twin Scroll (external WG) – Part # 179392
  • Turbine outlet: GT-Vband (aka small 3″ vband) ~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