What does the 1.24 A/R ratio mean for my turbo?

The A/R ratio, or Area/Radius, indicates the size of the turbine housing's internal passages. A 1.24 A/R is a larger housing that generally supports more top-end power and sustained boost at higher RPMs, but may spool slightly slower than a smaller A/R housing.

What are the benefits of a V-band connection?

V-band connections use a clamp to secure the housing, offering a more compact profile and a robust, leak-free seal compared to traditional bolted flanges. This can simplify installation and maintenance in tight engine bays.

Is this turbine housing compatible with all Garrett turbochargers?

No, this is a specific G55 turbine housing. You must verify that your turbocharger's center housing rotating assembly (CHRA) uses the correct G55 turbine housing flange for compatibility. It is not a universal fit for all Garrett turbos.

Garrett G55 Turbine Housing 1.24 A/R O/V V-Band 761208-0069

Name: Garrett G55 Turbine Housing Kit 1.24 A/R O/V / V-Band In/Out
Brand: Garrett
SKU: garrett-garrett-g55-turbine-housing-kit-1-24-a-r-o-v-v-band-in-out-t14-489506
Price: 1299.98 USD
Availability: BackOrder

Garrett G55 Turbine Housing Kit 1.24 A/R O/V / V-Band In/Out

$1299.98

On Backorder

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

Garrett G55 Turbine Housing Kit 1.24 A/R O/V / V-Band In/Out

Key Features

Garrett G55 Turbine Housing Kit with 1.24 A/R ratio.
Features V-band inlet and outlet for a secure and compact connection.
Open-out (O/V) design helps reduce exhaust backpressure for improved flow.
Suitable for applications requiring strong top-end power and sustained boost.
Part number 761208-0069.

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Product Details

Garrett is well-known for their advanced turbocharger technology, powering performance vehicles for decades. This G55 Turbine Housing Kit is a key component for those looking to build or upgrade a high-performance forced induction system. It's designed to manage exhaust gas flow into the turbine wheel, influencing boost response and overall power output.

This specific housing features a 1.24 A/R (Area/Radius) ratio, which is suited for applications needing strong top-end power and sustained boost at higher RPMs. The V-band inlet and outlet connections offer a compact and secure way to integrate the housing into your exhaust plumbing, simplifying installation and ensuring a leak-free seal compared to traditional flange setups. The open-out (O/V) design is often chosen for its ability to reduce exhaust backpressure, allowing the turbocharger to spool more efficiently and potentially reach higher boost levels.

When selecting a turbine housing, the A/R ratio is critical. A larger A/R like this 1.24 will generally result in a slightly slower initial spool but will support more airflow and power at higher engine speeds. This makes it a solid choice for modified engines focused on peak horsepower. Ensure your turbocharger's center housing rotating assembly (CHRA) is compatible with the G55 turbine housing flange before purchase.