BorgWarner EFR 7163 Turbo

The BorgWarner EFR 7163 Turbo Is a State-of-the-Art Performance Upgrade

The highest power small-frame BorgWarner EFR turbo, EFR 7163 is designed specifically for competitive racing use. Literally an off-the-shelf IndyCar turbocharger, the 7163 is used as twin-turbos by all current IRL teams.

Based on BorgWarner's state-of-the-art ‘Mixed-Flow Gamma-Ti Turbine Wheel’ design, the 7163 allows for a remarkably fast spool and huge powerbands. This unique turbocharger is by far the most popular ball bearing small frame turbo we offer from any company, and for good reason! It's one of the best small-frame turbos, especially for twin-turbo applications. 

Compressor Specifications

• Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
• Compressor Wheel OD (exducer): 71mm
• Compressor Wheel Inducer: 57mm
• Compressor Wheel Trim: 64
• Max Flow Rate: 60 lb/min
• Compressor Housing: 2.5″ hose coupler inlet, 2.0″ hose coupler outlet
• Built-in BOV: All EFR compressor housings incorporate an integrated BOV.
• Connections:

• • Inlet: 2.5″ Hose Coupler
  • Outlet: 2.0″ Hose Coupler

Turbine Specifications

• Turbine Type: Low Inertia Gamma-Ti Turbine Wheel
• Turbine Wheel OD: 58mm
• Stainless Steel Sand-cast Housing
• 0.64 A/R T25 Undivided (Internal WG) – Part # 179388
• Turbine outlet: GT-Vband (aka small 3″ v-band) ~92mm OD for all EFR turbos

Turbo Features

• Mixed Flow Gamma-Ti turbine wheel
• Forged milled extended tip compressor wheel
• Military-grade dual ceramic ball bearing assembly with silver-plated metal cage
  
  • Lowest friction and fastest spool/response, most extreme durability, built-in 2mm oil restrictor
• Stainless steel turbine housing
• Watercooled light-weight Aluminum bearing housing
  • watercooling is recommended, 14mm banjo bolts
• Double seals on both turbine and compressor end for extreme durability and resistance to any oil seepage
• Large internal wastegate (optional)
• Compressor recirculation valve (aka BOV)
• Boost control solenoid valve integrated into the compressor housing
• T25, T4, and V-Band Turbine Housing options to fit a variety of installations
• Optional Turbo Speed Sensor Kit
• Optional Turbo Speed Gauge

Check out the EFR 7163 V-Band 0.85 A/R EWG installed on Chevy 2.2L V6 IndyCar engine:

If you have questions about this turbo's features, fitment, or installation, contact us.