BorgWarner Aluminum EFR 9280 Turbo 74mm Ball Bearing w/ T4 Divided 1.4

BorgWarner EFR 9280 Turbocharger Overview
The EFR 9280 from BorgWarner Turbo Systems represents the ultimate in high-performance, race-focused turbocharger technology. Designed for applications requiring 800–1,100+ horsepower, it combines exceptional spool characteristics with unmatched power delivery. With a proven track record in elite motorsport events such as Time-Attack and Formula Drift championships, the EFR 9280 is the ideal choice for competitive racing and extreme high-performance builds.

Innovative Design for Peak Performance

The EFR 9280 features a 91mm compressor wheel paired with an 80mm Gamma-Ti (titanium aluminide) turbine wheel, ensuring rapid spool times and industry-leading airflow. The extended-tip compressor design and optimized aerodynamics enable the turbo to achieve a maximum flow rate of 110 lb/min at 117,000 RPM shaft speed, providing remarkable top-end performance without sacrificing response.

To suit a wide variety of applications, the EFR 9280 is available in four turbine housing configurations:

• 0.83 A/R T3 Undivided (Internal WG) (#12741008000)
• 0.92 A/R T4 Twin Scroll (Internal WG) (#12741008001)
• 1.05 A/R T4 Twin Scroll (External WG) (#12741019002)
• 1.45 A/R T4 Twin Scroll (External WG) (#12741008003)

Notable Features

The EFR 9280 integrates cutting-edge technology and materials to deliver unparalleled performance and durability:

• Gamma-Ti Turbine Wheel: Lightweight, low-inertia design for quick spool and exceptional durability.
• Integrated Compressor Recirculation Valve (CRV): Built-in for efficient and reliable operation.
• Dual Ceramic Ball Bearing Assembly: Includes a metal cage for reduced friction and maximum durability.
• Boost Control Solenoid Valve (BCSV): Integrated for precise and responsive boost control.
• Black Anodized Forged Milled Compressor Wheel (FMW): Advanced blade geometry for increased efficiency and distinct appearance.
• Extended Tip Technology: Optimized for high airflow and maximum performance.
• Compressor Cover with Speed Sensor Mounting Provisions: Facilitates easy integration of speed sensors.

Compressor and Turbine Specifications

Compressor Specifications:

• Type: Forged-Milled Wheel (FMW) with Extended Tip Technology
• Wheel OD (Exducer): 91mm
• Wheel Inducer: 73.7mm
• Max Flow Rate: 110 lb/min
• Inlet: 4″ Ported Shroud Hose Coupler
• Outlet: 2.5″ Hose Coupler with optional V-Band

Turbine Specifications:

• Type: Gamma-Ti Low Inertia Wheel
• Wheel OD: 80mm
• Housing Material: Stainless Steel
• Outlet: GT V-Band (~92mm OD)

Kit Components

The EFR 9280 kit includes:

• Super-Core
• Turbine Housing
• Clamp Plate Hardware

For wastegated configurations, the kit also includes:

• Actuator
• Actuator Bracket

Wastegate Actuator Options:

• Low Boost Canister: 4.0 psi opening, 13.7 psi full stroke.
• Medium Boost Canister: 8.8 psi opening, 20.6 psi full stroke.
• High Boost Canister: 16.8 psi opening, 32.3 psi full stroke.

Proven Track Record

The EFR series turbochargers are globally recognized for their class-leading performance, reliability, and versatility. The EFR 9280 builds on this legacy, offering industry-best power and spool characteristics, making it a trusted choice for professional motorsport and extreme performance enthusiasts alike.

Applications and Compatibility

The EFR 9280 is compatible with single-turbo setups for engines ranging from 3L to 6L, as well as twin-turbo configurations for larger displacement engines. Ideal for those seeking maximum horsepower and fast response in both competitive and high-performance environments.