What is the A/R ratio of the turbine housing, and why does it matter?

This turbocharger features a 0.64 A/R (Area/Radius) ratio for its turbine housing. A smaller A/R like this generally leads to quicker turbocharger spool-up, meaning the engine reaches desired boost pressure sooner. It's a balance that helps improve throttle response.

Does this turbocharger come with an internal or external wastegate?

The BorgWarner EFR B1 6758 turbocharger is equipped with an internal wastegate. This simplifies installation by integrating boost control directly into the turbine housing, eliminating the need for an external wastegate setup.

Are there any restrictions on shipping this turbocharger?

Yes, this turbocharger is not CARB approved and therefore cannot be shipped to California due to emissions regulations.

BorgWarner Turbocharger EFR B1 6758 179388

Name: BorgWarner Turbo EFR B1 6758 0.64 a/r VO WG
Brand: BorgWarner
SKU: borgwarner-borgwarner-turbo-efr-b1-6758-0-64-a-r-vo-wg-t14-4385388
Price: 2259.55 USD
Availability: InStock

BorgWarner Turbo EFR B1 6758 0.64 a/r VO WG

$2259.55

Only 7 left in stock

BorgWarner Turbo EFR B1 6758 0.64 a/r VO WG

Key Features

Fits: Check manufacturer fitment data to confirm compatibility with your vehicle.
BorgWarner EFR B1 6758 turbocharger with a 0.64 A/R turbine housing.
Features an integrated internal wastegate for precise boost control.
Utilizes advanced aerodynamics for improved airflow and responsiveness.
Built for performance and durability in demanding conditions.
Not CARB approved; cannot be shipped to California.

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Product Details

The BorgWarner EFR B1 6758 turbocharger features a 0.64 A/R turbine housing with an internal wastegate, a design choice that helps manage boost pressure effectively for a wide range of engine applications. This turbocharger is built for performance, utilizing advanced aerodynamics in its compressor and turbine wheels to improve airflow and responsiveness. The EFR series is known for its robust construction and ability to handle demanding conditions, making it a solid choice for enthusiasts looking to upgrade their vehicle's forced induction system.

This particular model, the 6758, offers a good balance between airflow capacity and spool speed. The compressor wheel is designed for efficient air delivery, while the turbine housing's A/R ratio of 0.64 is optimized for quick boost response without sacrificing top-end power potential. The integrated wastegate simplifies installation and ensures precise boost control, preventing over-boosting and protecting your engine. BorgWarner's commitment to quality means this turbocharger is well-built to withstand the high temperatures and pressures associated with performance tuning.

When considering a turbocharger upgrade like this, it's important to ensure your engine's supporting systems are up to the task. This includes fuel delivery, engine management, and exhaust flow. While this turbocharger is designed for enhanced performance, please note that it is not CARB approved and cannot be shipped to California. Always consult with a qualified professional to ensure proper installation and tuning for your specific vehicle and performance goals.