TurboSource EFR IWG 74mm Turbine Housing – 1.0 A/R
TurboSource EFR IWG 74mm Turbine Housing – 1.0 A/R
AVAILABILITY & LEAD TIME
In-stock items are normally dispatched promptly. Products not currently in stock may require additional supplier lead time before dispatch.
If you need an item urgently, please contact RSG before ordering to confirm current availability.
The TurboSource EFR IWG 74mm Turbine Housing is a performance upgrade for compatible BorgWarner EFR turbochargers, designed to improve turbine flow and high-RPM performance while retaining the simplicity and response advantages of an internal wastegate setup.
Investment cast from 310 stainless steel, the housing features a larger 1.0 A/R, enlarged wastegate runners for improved boost control and a 3-inch V-band turbine outlet. TurboSource reports only a small response penalty compared with the BorgWarner .92 housing while providing measurable torque and power gains once at full boost.
Product Details
CONSTRUCTION
- Investment cast 310 stainless steel
- 74mm EFR turbine wheel fitment
- 1.0 A/R
- Internal Wastegate (IWG) configuration
- Designed for high-temperature performance applications
TURBINE OUTLET
- 3-inch V-band discharge
- Slip-fit design
- Allows use of interlocking downpipe flanges if desired
BOOST CONTROL
- Enlarged wastegate runners
- Designed to significantly improve wastegate flow and boost control
- Optional additional wastegate porting available from TurboSource
PERFORMANCE
- Larger 1.0 A/R designed to increase maximum power capability
- TurboSource back-to-back testing on a 13B EFR 8374 application showed approximately 75 rpm slower response compared with the BorgWarner .92 housing
- Testing also showed gains of 25+ rwtq after full boost and 25+ rwhp on the test vehicle
Compatibility / Fitment
Compatible with the 74mm turbine-wheel EFR supercores:
- BorgWarner EFR 8374
- BorgWarner EFR 8474
- BorgWarner EFR 9174
- BorgWarner EFR 9274
TurboSource describes the housing as a direct bolt-on, requiring no additional fabrication when replacing the appropriate EFR turbine housing.
PRODUCT SPECIFICATIONS
Manufacturer: Turblown
Part Number: TS-EFR-IWG-74-1.0
Condition: New
Country of Origin: USA
RETURNS & REFUNDS
Returns are accepted in accordance with our Returns & Refund Policy.
Items must meet the applicable return conditions.
Please contact Rotary Secret Garage before returning any item.
SHIPPING & DELIVERY
Worldwide shipping with FedEx.
Rotary Secret Garage ships international orders using FedEx tracked courier services, providing reliable door-to-door delivery and shipment tracking.
Orders outside the European Union are shipped by FedEx Express.
Available shipping services and costs are calculated at checkout.
DUTIES & IMPORT TAXES
Orders shipped outside the European Union may be subject to import duties, taxes and customs fees imposed by the destination country.
These charges are the responsibility of the recipient and are not included in the product price or shipping cost, unless explicitly stated otherwise.
PARTS & FITMENT
Compatible Vehicle / Engine:
Please verify the vehicle application and part number before ordering.
If you are unsure whether a part is suitable for your vehicle, engine or specific setup, contact Rotary Secret Garage before placing your order.
RSG can assist with product selection and compatibility for parts supplied through our store.
PRODUCT SUPPORT
Technical product support is available from Rotary Secret Garage for parts supplied through our store.
If you need assistance with product selection, installation or application, contact RSG and include your order number and relevant vehicle, engine or setup details.