BorgWarner Iron B2 EFR 9180 Turbo 68mm Ball Bearing IWG T4 Divided .92

B2 EFR Turbo

The "B2" housing in the BorgWarner EFR turbocharger lineup is specifically engineered for larger turbine wheels and high-power applications, distinguishing it from smaller housings such as the "A" series. Its increased size allows for greater airflow and higher power potential, making it ideal for demanding, high-horsepower setups.

Designed to accommodate larger engines and higher boost requirements, the EFR B2 series turbos are optimized for applications where maximizing performance and airflow is critical. For those seeking a turbocharger capable of supporting a high-power engine, the EFR B2 housing offers the capacity and efficiency necessary for superior results.

BorgWarner EFR 9180 Turbocharger Overview
The EFR 9180 from BorgWarner Turbo Systems is the largest and highest-flowing turbo in the EFR family. Designed for applications requiring 600–1,000+ horsepower, it delivers exceptional performance, making it the ideal choice for drag racers and high-power enthusiasts seeking extreme boost and airflow capabilities.

Innovative Design for Peak Performance
The EFR 9180 features a 68mm inducer and 91mm outer diameter compressor wheel, enabling a remarkable airflow rate of 95 lb/min. This turbo redefines what 67mm turbos can achieve, providing exceptional spool and response even at high boost levels. The 1.05 A/R twin-scroll T4 turbine housing maximizes efficiency for single-turbo applications, while 0.83 A/R or 1.05 A/R options suit twin-turbo setups.

To accommodate various configurations, the EFR 9180 is available with multiple turbine housing options:

• 0.83 A/R T3 Undivided (Internal WG)

• 0.92 A/R T4 Twin Scroll (Internal WG)

• 1.05 A/R T4 Twin Scroll (External WG)

Notable Features
The EFR 9180 integrates cutting-edge technology and premium materials to ensure outstanding durability and performance:

Gamma-Ti Turbine Wheel: Lightweight, low-inertia design for fast spool and extreme durability.
Dual Ceramic Ball Bearing Assembly: Minimizes friction and enhances spool speed and longevity.
Forged-Milled Wheel (FMW) Compressor: 7-blade design enhances efficiency and maximizes airflow.
Built-in Compressor BOV: All EFR compressor housings incorporate an integrated blow-off valve.
Boost Control Solenoid Valve (BCSV): Integrated for seamless and accurate boost control.
Speed Sensor Mounting Provisions: Built-in feature facilitates easy sensor installation.
Water-Cooled Center Section: Optional but recommended to enhance durability and performance.

Compressor and Turbine Specifications

Compressor Specifications:
Type: Forged-Milled Wheel (FMW) Extended Tip
Wheel OD (Exducer): 91mm
Wheel Inducer: 68mm
Max Flow Rate: 95 lb/min
Inlet: 4” Ported Shroud Hose Coupler
Outlet: 2.5” Hose Coupler

Turbine Specifications:
Type: Low Inertia Gamma-Ti Turbine Wheel
Wheel OD (Inducer): 80mm
Wheel Exducer: 73mm
Housing Material: Stainless Steel Investment Cast
Outlet: GT V-Band (~92mm OD)

Kit Components
The EFR 9180 kit includes:

• Super-Core

• Turbine Housing

• Clamp Plate Hardware

Applications and Compatibility
The EFR 9180 is suitable for single-turbo applications producing 600–1,000 horsepower or twin-turbo configurations exceeding 1,000–1,700 horsepower. This turbocharger is designed for high-performance builds in motorsport and drag racing environments, delivering rapid spool, top-end power, and unmatched responsiveness.

Ideal for engines constrained by 67mm inducer size regulations, the EFR 9180 empowers high-power builds while maintaining drivability and quick spool characteristics.