$3,499.99
Turbo Specifics:Up for sale is a new BorgWarner Iron B2 EFR 8474 68mm Ball Bearing Turbocharger with T4 Divided 1.45 A/R V-Band 3 5/8" exhaust housing.Feel free to reach out to us with any questions! 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...
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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.
The EFR 8474 from BorgWarner Turbo Systems represents a pinnacle in high-performance, race-focused turbocharger technology. Engineered for applications requiring 500–800+ horsepower, it delivers exceptional response, a broad powerband, and unmatched reliability. With a proven track record, including consecutive victories in the Pike's Peak Unlimited class, the EFR 8474 is a premier choice for competitive motorsport and high-performance street builds.
The EFR 8474 features an 84mm compressor wheel with lower inertia than its 83mm predecessor, ensuring rapid spool times and impressive top-end airflow. The extended-tip compressor wheel design and optimized efficiency plateaus allow for higher pressure ratios and increased performance throughout the powerband. Combined with the lightweight 74mm Gamma-Ti (titanium aluminide) turbine wheel, this turbo achieves a 22% increase in airflow compared to its predecessor, with a maximum flow rate of 95 lb/min at 127,000 RPM shaft speed.
To further enhance its adaptability, the EFR 8474 is available in four turbine housing configurations to suit a variety of applications:
The EFR 8474 incorporates advanced technologies and features to maximize performance and durability:
Compressor Specifications:
Turbine Specifications:
The EFR 8474 kit includes:
For wastegated configurations, the kit also includes:
The wastegate actuators are available in three configurations, tailored for different boost ranges:
Recognized worldwide for class-leading performance, the EFR series turbochargers have powered race cars in the Verizon IndyCar Series since 2012, amassing over 1.25 million trouble-free miles. BorgWarner is the Official Turbocharger Partner of the series, demonstrating the reliability and performance of the EFR product line.
The EFR 8474 is compatible with single-turbo applications for engines ranging from 2L to 6L, as well as twin-turbo configurations for V6 and V8 engines. It delivers unparalleled performance for those seeking to maximize horsepower and response in both street and race environments.