BorgWarner 11637105000 EFR 7163 B1 Frame Super Core Assembly

The BorgWarner EFR 7163 Super Core represents the highest power small-frame turbocharger in the EFR (Engineered For Racing) lineup, designed specifically for competitive motorsports applications. This turbocharger is literally an off-the-shelf Indycar turbocharger used by IRL teams, bringing professional racing technology to performance enthusiasts.

Key Features:

• Gamma-Ti turbine wheel for exceptional durability and reduced rotational mass
• Dual ceramic ball bearing assembly with metal cage for fastest spool and response
• Integrated Compressor Recirculation Valve (CRV) for surge protection
• Boost Control Solenoid Valve (BCSV) integrated into compressor housing
• Forged Milled Compressor Wheel (FMW) with extended tip technology
• Speed sensor mounting provisions for precise boost monitoring
• B1 frame size with aluminum bearing housing (watercooling required)

Technical Specifications:

• Compressor wheel: 71mm outer diameter, 57mm inducer diameter
• Turbine wheel: 63mm outer diameter
• Maximum airflow: 60 lb/min
• Power range: 300-550 HP (single turbo), 600-1100+ HP (twin turbo applications)

What's Included:

• Complete Super Core assembly with CHRA (Center Housing Rotating Assembly)
• All turbine housing mounting hardware, clamp plates and cap screws
• Integrated compressor recirculation valve and boost control solenoid

What's NOT Included:

• Turbine housing, clamp plate hardware, wastegate, and actuator sold separately
• Speed sensor, turbine gaskets, V-bands, oil drain fittings (optional accessories)

The EFR 7163 uses the smallest-sized EFR compressor housing, fitting in the tightest engine bays particularly for twin turbo V6 or V8 applications. This Super Core is compatible with multiple turbine housing configurations including T25, T4 twin-scroll, and V-Band options with various A/R ratios. Ideal for autocross, rally, drift, road racing and street driven applications, the EFR 7163 delivers professional-grade performance with exceptional spool characteristics and wide powerband capability.

Important Notes:

• Aluminum bearing housing requires watercooling (mandatory)
• Built-in oil control orifice - no external restrictor required
• 14mm banjo bolts for water cooling connections
• Double seals on turbine and compressor ends for maximum durability