What is the A/R ratio and why does it matter?

The A/R ratio, in this case .83, refers to the area of the turbine housing's scroll divided by its radius. A higher A/R like .83 generally means a larger flow capacity, which helps the turbocharger make more power at higher RPMs, but it can lead to slightly slower initial spool-up compared to a smaller A/R.

What type of wastegate setup does this housing support?

This turbine housing is configured for a single wastegate setup. This means it has a single port designed to connect to an external wastegate actuator, allowing for precise control over boost pressure.

What kind of turbocharger center section does this housing fit?

This housing is part of the BorgWarner EFR B2 series. It is designed to bolt onto the corresponding EFR B2 center section and is compatible with T3 exhaust manifold flanges.

BorgWarner EFR B2 Turbine Housing 80mm .83 T3 12801008002

Name: BorgWarner Turbine Housing EFR B2 80mm .83 T3 Single Scroll WG Assy
Brand: BorgWarner
SKU: borgwarner-borgwarner-turbine-housing-efr-b2-80mm-83-t3-single-scroll-wg-assy-t14-4385219
Price: 752.47 USD
Availability: InStock

BorgWarner Turbine Housing EFR B2 80mm .83 T3 Single Scroll WG Assy

$752.47

Only 1 left in stock

BorgWarner EFR B2 Turbine Housing 80mm .83 T3 Single Scroll WG Assy. A well-built housing for improved turbo performance.

Key Features

This product is a BorgWarner EFR B2 turbine housing.
It features an 80mm inducer diameter.
The housing has a .83 A/R (area ratio).
It uses a T3 inlet flange.
This is a single wastegate assembly.
Constructed from durable cast iron.

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Product Details

What you get with this BorgWarner EFR B2 turbine housing is a robust, cast iron component designed to handle serious boost. This specific housing features an 80mm inducer diameter and a .83 A/R (area ratio) with a T3 inlet flange, configured for a single wastegate setup. It's built for performance applications where precise control over exhaust gas flow into the turbine wheel is key to spool speed and power delivery.

The EFR (Engineered for Racing) line from BorgWarner is known for its advanced design and materials. This housing is cast from durable iron, which is essential for withstanding the extreme temperatures and pressures found in a turbocharger system. The .83 A/R is a popular choice for a balance between quick spool-up on smaller to mid-sized engines and the ability to sustain high power levels. The T3 flange is a common and versatile mounting point, making it compatible with a wide range of turbocharger centers and exhaust manifolds.

This turbine housing is intended for custom turbo builds or as a replacement part for existing EFR turbochargers. Keep in mind that this part is not CARB approved and cannot be shipped to California. For installation, ensure you have the correct gaskets and hardware, and always refer to the manufacturer's specifications for proper fitment and torque values to ensure optimal performance and longevity.