What does the A/R ratio mean for my turbocharger?

The A/R ratio (Area/Radius) on a turbine housing affects how the turbocharger performs. A higher A/R, like the 1.01 on this housing, generally helps the turbo breathe better at higher RPMs and can improve top-end power. It influences how quickly exhaust gas can flow through the housing and spin the turbine wheel.

What is the advantage of V-band connections?

V-band connections use a clamp system to create a seal between two flanged components. This method is often preferred in performance applications because it provides a strong, leak-free seal and makes installation and removal simpler compared to traditional bolt-on flanges.

What is the benefit of a reverse rotation housing?

A reverse rotation housing is specifically designed for turbocharger assemblies that require the turbine wheel to spin in the opposite direction of a standard rotation. This is typically dictated by the overall plumbing and layout of the engine and turbo system.

Specifications

Brand: Garrett
Part #: 740902-0098

Garrett G30 Turbine Housing Kit O/V V-Band / V-Band 1.01 A/R (Reverse Rotation)

Name: Garrett G30 Turbine Housing Kit O/V V-Band / V-Band 1.01 A/R (Reverse Rotation)
Brand: Garrett
SKU: garrett-garrett-g30-turbine-housing-kit-o-v-v-band-v-band-1-01-a-r-reverse-rotat-t14-338561
Price: 855.36 USD
Availability: BackOrder

$855.36

On Backorder

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

Key Features

Fits Garrett G30 series turbochargers.
Features an O/V V-band inlet and V-band outlet for secure and easy connection.
Has a 1.01 A/R ratio, which influences turbo spool and top-end power delivery.
Designed for reverse rotation applications.
Constructed from durable cast iron to withstand high exhaust temperatures.
Not CARB approved; cannot be shipped to California.

This turbine housing is designed for Garrett G30 series turbochargers. Please consult the turbocharger's specific application guide to confirm compatibility with your vehicle's setup.

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About this part

Product Details

This is the Garrett G30 Turbine Housing Kit, specifically the O/V V-Band / V-Band model with a 1.01 A/R ratio and reverse rotation. This component is a critical part of a turbocharger system, dictating exhaust gas flow into the turbine wheel. The A/R ratio (Area/Radius) of 1.01 influences how quickly the turbo spools up and how much boost it can produce at higher RPMs. A higher A/R like 1.01 generally favors top-end power and can help reduce backpressure in high-flow applications, while the V-band connections offer a secure and easy-to-install mounting solution for the exhaust manifold and downpipe.

Garrett is well-known for its performance turbocharger components, and this turbine housing is built to handle the demands of high-performance engines. The cast iron construction is chosen for its durability and ability to withstand the extreme temperatures and pressures found in the exhaust stream. The reverse rotation design is specific to certain turbocharger configurations, ensuring proper fitment and function within a complete turbo assembly. This housing is designed to work with the Garrett G30 series of turbochargers, offering a way to fine-tune the performance characteristics of your existing setup. It's important to note that this part is not CARB approved and cannot be shipped to California due to emissions regulations.

When installing a new turbine housing, it's crucial to ensure all V-band clamps are properly tightened to create a leak-free seal. This helps maintain exhaust velocity into the turbine and prevents any loss of boost pressure. Proper exhaust manifold gasket selection and torque specifications should also be followed according to the turbocharger manufacturer's recommendations to ensure a reliable installation and optimal performance.