BorgWarner EFR-8474 High Performance Ball Bearing Turbocharger

The BorgWarner EFR-8474 represents state-of-the-art turbocharger technology engineered for high-performance motorsport and racing applications in the 500-950 horsepower range. This advanced turbocharger combines exceptional flow capacity with rapid spool characteristics, delivering unmatched throttle response and broad powerband performance.

Advanced Compressor Technology:

• 84mm forged-milled extended-tip compressor wheel with 68mm inducer diameter
• Black series billet compressor design flows up to 95 lb/min of air
• 4-inch inlet and 2.5-inch outlet with integrated V-band option
• Integrated compressor recirculation valve (bypass valve) built into housing
• Ported shroud design for enhanced efficiency

Turbine Features:

• 74mm low-inertia Gamma-Ti (titanium aluminide) turbine wheel
• Maximum shaft speed of 127,000 RPM
• Stainless steel turbine housing with GT V-band outlet
• Available in multiple configurations including T3/T4 flanges and internal/external wastegate options

Premium Bearing and Cooling System:

• Dual ceramic ball bearing assembly with metal cage for minimal friction and maximum durability
• Water-cooled center section (water cooling recommended for optimal performance)
• Built-in oil restrictor for proper bearing lubrication
• Double seals on turbine and compressor sides prevent oil seepage

Integrated Performance Features:

• Boost control solenoid valve integrated into compressor housing
• Speed sensor port provisions for monitoring turbo shaft speed
• 21.8% airflow improvement over comparable-sized turbochargers
• Wide efficiency plateau for consistent performance across RPM range

The EFR-8474 was specifically engineered to combine high-flow capability at peak power with low-inertia quick spool characteristics, allowing exceptional top-end breathing without sacrificing low-end response or midrange torque. This turbocharger has proven itself in competition, including victories in the Pike's Peak Unlimited class. Ideal for serious racing applications requiring maximum boost pressure and extreme durability.