What does the 1.19 A/R ratio mean for my turbocharger?

The A/R ratio, or Area-to-Radius, indicates the size of the turbine housing's exhaust passage. A 1.19 A/R is a larger housing that generally allows for better exhaust flow at higher RPMs, helping to reduce backpressure and maintain boost for improved top-end power.

Why are V-band connections used on this housing?

V-band connections offer a strong, compact, and leak-free seal compared to traditional flange and bolt setups. They are easier to install and remove, and they can better withstand the vibrations and high temperatures found in performance exhaust systems.

Is this turbine housing legal for street use in all states?

No, this turbine housing is not CARB approved and cannot be legally shipped to California. It is intended for off-road use only. Always check local regulations regarding emissions equipment for your vehicle.

Garrett G40 Turbine Housing 1.19 A/R V-Band

Name: Garrett G40 Turbine Housing Kit O/V V-Band / V-Band 1.19 A/R
Brand: Garrett
SKU: garrett-garrett-g40-turbine-housing-kit-o-v-v-band-v-band-1-19-a-r-t14-481517
Price: 862.85 USD
Availability: InStock

Garrett G40 Turbine Housing Kit O/V V-Band / V-Band 1.19 A/R

$862.85

Only 7 left in stock

Garrett G40 Turbine Housing Kit O/V V-Band / V-Band 1.19 A/R

Key Features

Fits Garrett G40 turbochargers.
Features a 1.19 A/R ratio for optimized exhaust flow and boost control.
Includes V-band inlet and outlet connections for a secure and leak-free seal.
Designed for high-performance forced induction applications.
Robust construction suitable for demanding engine conditions.

This turbine housing is designed for Garrett G40 turbochargers. Compatibility with specific engine builds and other turbocharger components should be verified by the installer or a professional tuner.

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Product Details

Garrett is well-known for its high-performance turbochargers and related components, trusted by racers and tuners worldwide. This G40 Turbine Housing Kit is designed for those building or upgrading a forced induction system where precise control over exhaust gas flow is critical. With a 1.19 A/R ratio, this housing is engineered to optimize exhaust flow for a specific engine combination, helping to spool the turbocharger efficiently and maintain boost pressure across the powerband. The V-band inlet and outlet connections offer a robust and leak-free seal, simplifying installation and ensuring reliable performance under demanding conditions.

This kit includes the turbine housing itself, featuring a 1.19 A/R rating. This specific A/R (Area-to-Radius) ratio is a key factor in determining how the turbocharger responds to exhaust gas flow. A higher A/R like 1.19 generally allows for better exhaust flow at higher RPMs, helping to prevent backpressure and maintain boost, which is crucial for maximizing top-end power. The V-band connections on both the inlet and outlet are a practical choice for high-performance applications, as they provide a secure, compact, and easy-to-assemble connection that can withstand significant vibration and temperature changes. This makes it a popular choice for custom turbo setups where reliability and ease of maintenance are important.

When considering this turbine housing, it's important to match the A/R ratio and the overall turbocharger size to your engine's displacement, camshaft profile, and intended use. Proper matching ensures that the turbocharger operates within its efficient range, delivering improved performance without excessive lag or backpressure. This housing is intended for off-road use and is not CARB approved, meaning it cannot be legally shipped to California. Always consult with a professional tuner or engine builder to confirm this housing is the right choice for your specific build and to ensure proper installation and tuning.