BorgWarner 12747100021 EFR 9274 B2 Turbo SuperCore Assembly Aluminum Bearing Housing

The BorgWarner EFR 9274 SuperCore Assembly represents the pinnacle of high-performance turbocharger technology for motorsport and competitive applications. This B2-frame SuperCore features an aluminum bearing housing and is engineered specifically for setups that demand extreme boost levels and high turbo shaft speeds, making it ideal for professional drift, time attack, and high-horsepower street applications.

Advanced Compressor Technology:

• 91mm forged-milled wheel (FMW) extended-tip compressor with 72mm inducer diameter
• Anodized black compressor wheel with optimized blade geometry for maximum airflow
• Impressive 106 lb/min maximum airflow capacity at 125,000 RPM
• 4-inch ported shroud inlet and 2.5-inch outlet with integrated V-band option
• Built-in blow-off valve (BOV) integrated into compressor housing

High-Performance Turbine Components:

• Low-inertia 74mm Gamma-TiAl (titanium aluminide) turbine wheel for rapid boost response
• Enhanced efficiency plateaus with widened surge margin
• Improved pressure ratios achieved at lower shaft speeds
• Ceramic ball bearing system for reduced friction and faster spool

SuperCore Configuration:

• Includes compressor housing and center cartridge (CHRA) with aluminum bearing housing
• Power capability: 600-1050 horsepower range
• Compatible with various turbine housings sold separately (T3, T4 twin scroll configurations)
• Speed sensor port included for monitoring critical turbo speeds

This SuperCore assembly represents the evolution of the popular EFR 9174, featuring larger inducer diameter and refined aerodynamics to shift the surge line and deliver exceptional top-end breathing. The same proven technology that powers Verizon IndyCar Series race cars is now available for serious enthusiasts seeking ultimate performance and reliability.