What does the 1.03 A/R ratio mean for performance?

The A/R ratio, or area-to-radius ratio, measures the cross-sectional area of the turbine housing relative to its radius. A 1.03 A/R generally allows exhaust gases to flow more freely at higher engine speeds, which can help improve top-end horsepower by reducing backpressure on the turbine wheel.

Why is stainless steel used for this turbine housing?

Stainless steel is chosen for its excellent resistance to the extreme heat and corrosive exhaust gases produced by engines, especially under boost. This material helps the housing maintain its shape and integrity over time, contributing to its durability and consistent performance.

What are the implications of this part not being CARB approved?

This turbine housing is not approved by the California Air Resources Board (CARB) for use on emissions-controlled vehicles in California. Consequently, it cannot be legally shipped to or installed on vehicles registered in California.

TiALSport GT35XX Turbine Housing 1.03 A/R 002461

Name: TiAL Sport GT35XX 1.03 A/R Stainless Steel Turbine Housing
Brand: TiALSport
SKU: tialsport-tial-sport-gt35xx-1-03-a-r-stainless-steel-turbine-housing-t14-537521
Price: 514.00 USD
Availability: InStock

TiAL Sport GT35XX 1.03 A/R Stainless Steel Turbine Housing

$514.00

Only 1 left in stock

TiAL Sport GT35XX 1.03 A/R Stainless Steel Turbine Housing

Key Features

Fits TiAL Sport GT35XX turbochargers.
Features a 1.03 A/R ratio for improved top-end power.
Constructed from durable stainless steel to withstand high temperatures.
Designed to manage exhaust gas flow for optimal turbine speed.
Not CARB approved; cannot ship to California.

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Product Details

This TiAL Sport GT35XX turbine housing features a 1.03 A/R ratio, which is a key measurement that dictates how quickly exhaust gas can flow through the housing and spin the turbine wheel. A larger A/R like this one generally helps to improve top-end power by allowing exhaust gases to exit more freely at higher engine speeds, making it a popular choice for builds focused on maximizing horsepower. It’s constructed from stainless steel, a material known for its ability to withstand the high temperatures and corrosive exhaust gases found in forced induction systems, helping to ensure longevity and consistent performance over time.

The stainless steel construction not only offers durability but also helps to maintain the housing's structural integrity under extreme thermal cycling. This specific housing is designed for the GT35XX series of turbochargers, a well-regarded platform for performance applications. When selecting a turbine housing, matching the A/R to your engine's displacement, camshaft profile, and desired powerband is crucial for optimal turbocharger response and efficiency. This 1.03 A/R unit is often chosen for larger displacement engines or those aiming for a broader powerband that extends into higher RPMs.

Please be aware that this part is not CARB approved and cannot be shipped to California. It is essential to verify fitment with your specific turbocharger model and manifold setup before installation. For optimal performance and reliability, consider consulting with a professional tuner or builder to ensure this housing complements the overall goals of your forced induction system.