What is the purpose of the 1.23 A/R ratio on this turbine housing?

The A/R ratio, in this case 1.23, dictates the flow characteristics of the turbine housing. A higher A/R like 1.23 generally favors higher exhaust gas flow and helps the turbocharger produce more power at higher engine RPMs, often at the expense of slightly slower initial spool.

What does 'large frame' refer to in the context of this turbo housing?

Large frame refers to the physical size and flow capacity of the turbocharger. Garrett's GT50 and GTX50 series are designed for high-horsepower applications, meaning they require larger turbine and compressor housings to move the significant volume of air needed.

What is included in this turbine housing kit?

This kit includes the Garrett turbine housing itself, specifically designed for the GT50/GTX50 series. It is intended to be integrated into a complete turbocharger assembly.

Garrett GT50/GTX50 Turbine Housing Kit 1.23 A/R 761208-0032

Name: Garrett GT50/GTX50 Turbine Housing Kit O/V 1.23 A/R (Large Frame)
Brand: Garrett
SKU: garrett-garrett-gt50-gtx50-turbine-housing-kit-o-v-1-23-a-r-large-frame-t14-428563
Price: 858.10 USD
Availability: BackOrder

Garrett GT50/GTX50 Turbine Housing Kit O/V 1.23 A/R (Large Frame)

$858.10

On Backorder

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

Garrett GT50/GTX50 Turbine Housing Kit O/V 1.23 A/R (Large Frame)

Key Features

Fits Garrett GT50 and GTX50 series large frame turbochargers.
Features a 1.23 A/R (Area/Radius) ratio for optimized top-end power.
Designed for high-flow applications requiring sustained boost.
Robust construction to withstand extreme turbocharger temperatures and pressures.
Part number 761208-0032.

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Product Details

Garrett is well-known for their high-performance turbochargers, and this turbine housing kit is a prime example of their commitment to forced induction excellence. This specific kit is designed for Garrett's large frame GT50 and GTX50 series turbochargers, featuring a 1.23 A/R ratio. The A/R (Area/Radius) ratio is crucial for determining how a turbocharger spools up and performs at higher RPMs. A 1.23 A/R generally indicates a housing that favors top-end power and sustained boost in high-flow applications.

This turbine housing is built to handle the demands of serious performance builds. Its robust construction is intended to withstand the extreme temperatures and pressures associated with large frame turbochargers. When you're looking to optimize the top-end powerband of your GT50 or GTX50 turbo, this housing is a key component. It's designed to work seamlessly with the corresponding compressor housing and internal components to create a complete, high-performing turbocharger unit.

This kit includes the turbine housing itself, ready to be integrated into your existing or new Garrett GT50/GTX50 turbo assembly. Keep in mind that this part is not CARB approved and cannot be shipped to California. For those building a high-output engine where maximum airflow and top-end power are the goals, this Garrett turbine housing kit offers a direct path to achieving that performance target.