What is the purpose of the 1.25 A/R ratio?

The A/R ratio on a turbine housing determines the area-to-radius ratio of the volute. A 1.25 A/R generally indicates a larger housing that can help reduce backpressure at higher RPMs, allowing the turbo to breathe more freely and potentially make more top-end power.

What does 'O/V' mean for the wastegate port?

O/V stands for 'Open Wastegate'. This means the housing has a port designed to connect to an external wastegate, which offers more precise boost control compared to an internal wastegate setup.

What type of clamp is needed for the V-band connections?

You will need a compatible V-band clamp specifically sized for the inlet and outlet of this Garrett G57 turbine housing. Using the correct clamp ensures a tight seal and prevents exhaust leaks.

Garrett G57 Turbine Housing 1.25 A/R O/V V-Band 761208-0084

Name: Garrett G57 Turbine Housing Kit 1.25 A/R O/V V-Band In/Out
Brand: Garrett
SKU: garrett-garrett-g57-turbine-housing-kit-1-25-a-r-o-v-v-band-in-out-t14-420810
Price: 1252.92 USD
Availability: BackOrder

Garrett G57 Turbine Housing Kit 1.25 A/R O/V V-Band In/Out

$1252.92

On Backorder

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

Garrett G57 Turbine Housing Kit 1.25 A/R O/V V-Band In/Out

Key Features

Fits Garrett G57 turbochargers.
Features a 1.25 A/R ratio for optimized exhaust flow and boost control.
Includes V-band inlet and outlet for secure, leak-free connections.
Open wastegate (O/V) port allows for external wastegate integration.
Constructed from durable cast iron to handle high temperatures and pressures.
Simplifies installation and servicing with V-band connections.

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Product Details

The 1.25 A/R ratio on this Garrett G57 turbine housing is a key factor in controlling exhaust gas flow and managing boost response. This specific housing is designed for the G57 turbocharger, offering a V-band inlet and outlet for a secure and leak-free connection. It features an open wastegate (O/V) port, giving you flexibility in how you manage boost pressure with an external wastegate setup.

Constructed from durable cast iron, this housing is built to withstand the high temperatures and pressures associated with forced induction systems. The V-band connections simplify installation and removal compared to traditional flanged setups, making it easier to service or swap components. This kit is intended for performance builds where precise control over exhaust flow and boost levels is critical for maximizing engine power and efficiency. It's a well-built component designed to integrate seamlessly with the Garrett G57 turbocharger.

When installing this turbine housing, ensure you use the appropriate V-band clamp and gasket for a proper seal. Proper wastegate control is essential for engine longevity and performance, so consider the overall setup of your exhaust and boost management system. This housing is a critical piece for tuning and optimizing your forced induction setup.