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BWA12747100023-BorgWarner SuperCore Assembly EFR B2 9274 (Cast Iron B. Hsg)-Super Core Assemblies-BorgWarner
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BorgWarner SuperCore Assembly EFR B2 9274 (Cast Iron B. Hsg)

BorgWarner
BWA12747100023
840232712155
Super Core Assemblies
8 Units In Stock - Ships Next Business Day
$ 3,350.94 $ 2,655.23
$ 2,655.23

SKU: 12747100023 | UPC: 840232712155

BorgWarner SuperCore Assembly EFR B2 9274 (Cast Iron B. Hsg) - Universal High HP Turbo Build

The BorgWarner EFR B2 9274 SuperCore Assembly powers custom turbocharger builds for racing and high-performance street cars targeting 900 to 1100 horsepower. This ball bearing CHRA with cast iron bearing housing fits a wide range of modified engines where maximum airflow and response matter. Build your turbo with matching EFR compressor and turbine housings for peak efficiency.

Key Features

  • Ball Bearing CHRA: Dual ceramic ball bearings cut friction for spool times under 3000 RPM and support 200000+ RPM operation
  • Compressor Wheel: 67mm inducer 91mm exducer FMW aluminum wheel with extended tips flows 110 lb/min of air
  • Turbine Wheel: 84mm inducer 74mm exducer Gamma-Ti Inconel wheel handles extreme EGTs over 1050C
  • Cast Iron Bearing Housing: Robust construction with integrated water cooling ports and M12x1.5 oil feed for reliable lubrication
  • B2 Frame Size: Compact design measures 5.7 inches diameter for tight engine bay packaging

Product Notes

  • SuperCore requires separate EFR 9274 compressor cover and turbine housing to complete assembly
  • Special order part non-returnable once ordered confirm compatibility first
  • Securely packaged to prevent damage during transit

Installation Notes

  • Professional installation recommended.
  • Oil feed M12x1.5 restrictor required based on engine oil pressure
  • Compatible with EFR T4 divided or T5 undivided turbine housings and A/R 0.58 to 0.73 compressor covers

This Part Fits

Year Make Model Submodel
1993-1998 Toyota Supra Turbo (2JZ-GTE)
1989-2002 Nissan Skyline GT-R R32/R33/R34 (RB26DETT)
2008-2016 Mitsubishi Lancer Evolution X (4B11T)
1997-2004 Chevrolet Corvette C5 (LS1)
2005-2013 Chevrolet Corvette C6 (LS2/LS7)
Universal Various Custom Builds LS/2JZ/RB/4G63

Why Choose BorgWarner?

  • Proven in IMSA World Challenge and NASA racing series
  • OE-grade materials withstand 1000+ HP daily drivers
  • Precision machined tolerances for balanced operation

Frequently Asked Questions

  • Q: What components are included in the SuperCore?
    A: Ball bearing cartridge compressor wheel turbine wheel and cast iron bearing housing ready for housings
  • Q: Is the bearing housing water cooled?
    A: Yes features dual water ports for coolant circulation plus oil ports for full thermal management
  • Q: What warranty applies?
    A: 12-month unlimited mileage warranty against defects with proof of professional installation

Shipping & Handling

  • Method: UPS or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective carton 15 x 15 x 15 inches
  • Weight: 22 lbs shipping weight

Request For Information

Have questions about BorgWarner SuperCore Assembly EFR B2 9274 (Cast Iron B. Hsg)? Fill out the form below and we'll get back to you by the next business day.
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