What does the A/R ratio mean for this turbine housing?

The A/R ratio, in this case .83, influences how the turbocharger spools and performs. A lower A/R generally means quicker spool-up, while a higher A/R can help with top-end power by reducing exhaust backpressure. This .83 ratio aims to provide a balance between responsiveness and high-flow capability.

Why is stainless steel used for this turbine housing?

Stainless steel is chosen for its excellent resistance to the high temperatures and corrosive exhaust gases common in performance turbo applications. This material helps maintain the housing's structural integrity and consistent performance over its lifespan.

What is the significance of the 83.5mm exit diameter?

The 83.5mm exit diameter is designed to efficiently channel exhaust gases away from the turbocharger's turbine wheel. It's matched to the outlet size of compatible S400 turbochargers to ensure optimal flow and minimize exhaust restriction.

TiALSport S400 Turbine Housing BWVB3745-116 A/R .83

Name: TiAL Sport BWVB3745-116 A/R 83.5mm S400 Stainless Steel Turbine Housing
Brand: TiALSport
SKU: tialsport-tial-sport-bwvb3745-116-a-r-83-5mm-s400-stainless-steel-turbine-housin-t14-538185
Price: 680.35 USD
Availability: BackOrder

TiAL Sport BWVB3745-116 A/R 83.5mm S400 Stainless Steel Turbine Housing

$680.35

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

TiAL Sport BWVB3745-116 A/R .83 stainless steel turbine housing for S400 turbos.

Key Features

Fits S400 turbochargers.
Constructed from stainless steel for high-temperature resistance.
Features an A/R ratio of .83 for balanced spool and top-end performance.
Has an 83.5mm exit diameter for efficient exhaust flow.
Not CARB approved; cannot ship to California.

This turbine housing is designed for S400 turbochargers. Check manufacturer specifications to confirm compatibility with your specific turbocharger model.

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Product Details

This stainless steel turbine housing features an A/R of .83 and a 83.5mm exit diameter, specifically designed for S400 turbochargers. The choice of stainless steel for its construction is notable, offering good resistance to the high temperatures and corrosive exhaust gases found in performance applications. This material helps ensure the housing maintains its structural integrity and performance over time, even under demanding conditions. The .83 A/R ratio is a key specification that influences how the turbocharger spools and performs at different engine speeds. A lower A/R generally leads to quicker spool-up, while a higher A/R can improve top-end power by reducing exhaust backpressure. This particular ratio is often selected to balance responsiveness with high-flow capability for a wide range of performance builds.

TiAL Sport is known for its focus on performance components, and this turbine housing is built to integrate with S400-style turbochargers. The 83.5mm exit diameter is designed to match the exhaust wheel outlet, ensuring efficient flow away from the turbine. Proper fitment and sealing are crucial for turbocharger performance and longevity, so this housing is manufactured to precise standards. While this part is not CARB approved and cannot be shipped to California, it represents a well-built option for enthusiasts looking to fine-tune their forced induction setup. Consider the overall turbo system design and your specific performance goals when selecting an A/R ratio, as it plays a significant role in the final power delivery and drivability.