Up for sale is a BorgWarner EFR B2 9174 Turbo Super Core Assembly with Cast Iron Bearing Housing
which includes the Super Core & Compressor Cover
Specifications:
Compressor Type: Forged-Milled Wheel (FMW) Extended Tip
Compressor Wheel OD (exducer): 91mm
Compressor Wheel Inducer: 68mm
Max Flow Rate: 95 lb/min
We can include the Turbine Housing of your choice at an additional cost, just message us after you have placed the order.
The EFR 9174 is Available in (4) Different Turbine Housing Configurations:
T3 .83 A/R, Internally Wastegated - (12741008000)
T4 Twin Scroll, .92 A/R, Internally Wastegated - (12741008001)
T4 Twin Scroll, 1.05 A/R, Externally Wastegated - (12741019002)
T4 Twin Scroll, 1.45 A/R, Externally Wastegated - (12741008003)
Please review BorgWarner's turbo systems warranty, they offer a 12 month limited warranty.
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 9174 Turbocharger Overview
The BorgWarner EFR 9174 turbocharger is a cutting-edge component engineered for high-performance motorsport applications. Designed to deliver exceptional airflow and boost, the 9174 balances rapid spool characteristics with the capacity to support significant horsepower. This turbo is ideal for professional time attack and high-power street builds, supporting engines targeting between 600-1000 HP in single turbo configurations or exceeding 1400+ HP in twin turbo setups.
Innovative Design for Superior Performance
The EFR 9174 integrates a 91mm compressor exducer with a 68mm inducer, ensuring robust airflow and enhanced top-end performance. The low inertia 74mm Gamma-Ti turbine wheel optimally complements the compressor side, enabling fast spool and impressive power delivery. Capable of flowing up to 95 lb/min of air, this turbo sustains 45+ psi of boost pressure, positioning it as a top contender in the EFR lineup.
To accommodate diverse setups, the EFR 9174 is available with four turbine housing options:
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)
Key Features
Built for extreme durability and high performance, the EFR 9174 boasts several advanced design elements and high-quality materials:
Gamma-Ti Turbine Wheel: Low inertia for rapid spool and enhanced durability
Dual Row Ceramic Ball Bearings: Provides faster response, minimized friction, and exceptional longevity
Integrated Compressor Recirculation Valve (CRV): Built into all EFR compressor housings for smooth and efficient operation
Boost Control Solenoid Valve (BCSV): Integrated into the compressor housing for precise boost regulation
Water-Cooled Center Section: Enhances cooling and reliability with 14mm banjo bolt fittings
Double Seals: Ensures superior oil control at both turbine and compressor ends, preventing seepage
Speed Sensor Provisions: Pre-configured for the installation of speed sensors for real-time turbo monitoring
Compressor Specifications:
Type: Forged-Milled Wheel (FMW) with Extended Tip Technology
Wheel OD (Exducer): 91mm
Wheel Inducer: 68mm
Max Flow Rate: 95 lb/min
Inlet: 4" Ported Shroud Hose Coupler
Outlet: 2.5" Hose Coupler with optional V-Band integration
Turbine Specifications:
Type: Gamma-Ti Low Inertia Wheel
Wheel OD (Exducer): 74mm
Wheel Inducer: 65mm
Housing Material: Stainless Steel Investment Cast
Outlet: GT V-Band (~92mm OD)
Proven Track Record
The EFR 9174 has solidified its reputation within the performance automotive community, recognized for its quick spool and high horsepower capability. It stands as one of the largest EFR compressor housings, making it a favored option for motorsport enthusiasts seeking top-end power and fast transient response.
Applications and Compatibility
Designed for high-power applications, the EFR 9174 excels in single turbo builds for engines ranging from 2.5L to 6L or as part of twin-turbo configurations for larger displacement platforms. Its robust design and rapid spool characteristics make it suitable for drift, time attack, and street performance builds, ensuring a balance between early boost response and top-end power delivery.
