What material is this turbine housing made from?

This turbine housing is made from high-silicon ductile iron, often referred to as 'Hi Sil'. This material is chosen for its ability to withstand the high temperatures and pressures found in a turbocharger system.

What does the 0.63 A/R ratio mean for performance?

The 0.63 A/R (Area/Radius) ratio influences how quickly the turbocharger spools up and how much airflow it can handle at higher engine speeds. A 0.63 A/R generally offers a good compromise, providing quicker response than larger A/R housings while still allowing for decent top-end power.

Is this turbine housing compatible with any GT35R turbocharger?

This housing is specifically designed to fit Garrett GT35R turbochargers. It features a T4 inlet and a V-band outlet, which are common configurations for this series of turbo.

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Specifications

Brand: Garrett
Part #: 740902-0018

Garrett GT35R Turbine Housing Kit O/V T4 / V-Band 0.63 A/R (Hi Sil)

Name: Garrett GT35R Turbine Housing Kit O/V T4 / V-Band 0.63 A/R (Hi Sil)
Brand: Garrett
SKU: garrett-garrett-gt35r-turbine-housing-kit-o-v-t4-v-band-0-63-a-r-hi-sil-t14-41074
Price: 483.81 USD
Availability: BackOrder

$483.81

On Backorder

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

Garrett GT35R Turbine Housing Kit O/V T4 / V-Band 0.63 A/R (Hi Sil). This kit includes the turbine housing.

Key Features

This kit includes the Garrett GT35R turbine housing.
Features a T4 inlet flange and a V-band outlet.
Has a 0.63 A/R ratio for a balance of spool and top-end power.
Constructed from high-silicon ductile iron (Hi Sil) for heat resistance.
Designed for use with Garrett GT35R turbochargers.

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About this part

Product Details

What you get in this kit is the Garrett GT35R turbine housing itself, featuring a T4 inlet and V-band outlet. It's set up with a 0.63 A/R ratio, which is a good starting point for many builds looking for a balance between quick spool and top-end power. The 'Hi Sil' designation means it's made with high-silicon ductile iron, a well-built material that holds up well to the heat and stress of turbocharging.

This housing is designed to bolt onto your GT35R turbocharger, allowing you to tune its performance characteristics. The T4 flange is a common size for many aftermarket turbo setups, and the V-band outlet makes for a secure and easy-to-install connection to your downpipe. Choosing the right A/R ratio is key to matching your turbo to your engine's needs, and this 0.63 housing is a popular choice for those aiming for improved response without sacrificing too much airflow at higher RPMs.