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BorgWarner Turbo Upgrade | EFR Series 8374

Posted on 08 May 2015

Support upwards of 750hp!

Click here to pick up your own [caption id="attachment_13907" align="aligncenter" width="640"]DSC_5892 Click the Image to Check out the Product Page[/caption]  

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 the optimal match for the 62.6mm inducer / 83mm exducer FMW compressor wheel and is capable of 79lb/min airflow and 45+psi boost. 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 >1400+hp. 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 Investment cast Housing - The EFR 8374 is available in (3) different turbine housing configurations:
    • 0.83 A/R T3 undivided (Internal WG)
    • 0.92 A/R T4 twinscroll (Internal WG)
    • 1.05 A/R T4 twinscroll (external WG)
  • 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 oil control orifice - (aka oil restrictor) **no restrictor can be used with EFR turbos
  • 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

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