What is the A/R ratio and why does it matter?

The A/R ratio, or Area/Radius, measures the cross-sectional area of the volute divided by the radius to the center of the volute. A larger A/R like 1.06 generally allows the turbo to flow more exhaust gas at higher RPMs, which can lead to more top-end power, but may result in slightly later spool.

What is the Hi Sil casting?

Hi Sil refers to a cast iron alloy with a higher silicon content. This type of casting is known for its strength and improved resistance to thermal fatigue and cracking, making it suitable for high-temperature exhaust applications.

What does 'Not CARB approved' mean?

CARB (California Air Resources Board) approval means a part meets specific emissions standards for use in California. 'Not CARB approved' signifies that this part cannot be legally shipped to or used in California due to emissions regulations.

Specifications

Brand: Garrett
Part #: 740902-0016

Garrett GT35R Turbine Housing Kit O/V T4 / V-Band 1.06 A/R (Hi Sil)

Name: Garrett GT35R Turbine Housing Kit O/V T4 / V-Band 1.06 A/R (Hi Sil)
Brand: Garrett
SKU: garrett-garrett-gt35r-turbine-housing-kit-o-v-t4-v-band-1-06-a-r-hi-sil-t14-41073
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 with T4/V-Band inlet and 1.06 A/R.

Key Features

Fits Garrett GT35R turbochargers.
Features a T4 inlet flange with V-band connection.
Includes a 1.06 A/R ratio for optimized exhaust flow.
Constructed with a Hi Sil (high silicon) cast iron housing for durability.
Designed to help manage exhaust gas and influence turbo spool and power delivery.

This turbine housing is designed for Garrett GT35R turbochargers. It is not CARB approved and cannot be shipped to California.

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About this part

Product Details

This is the Garrett GT35R turbine housing kit, featuring a T4/V-Band inlet and a 1.06 A/R ratio. It's built with a Hi Sil casting, which is a type of cast iron known for its strength and ability to handle high temperatures. This housing is designed to work with Garrett GT35R turbochargers, helping to manage exhaust gas flow and determine the turbo's spool characteristics and top-end power potential.

The 1.06 A/R (Area/Radius) measurement is a key spec that influences how the turbocharger responds to exhaust gas. A larger A/R like this one generally helps the turbo breathe better at higher RPMs, allowing for more top-end power, while potentially making it spool a bit later compared to a smaller A/R housing. The T4 flange with V-band connection offers a secure and reliable way to connect the housing to your exhaust manifold and downpipe, making installation more straightforward and ensuring a good seal.

This kit is specifically for the Garrett GT35R turbocharger and is not CARB approved, meaning it cannot be shipped to California. If you're building a performance engine and need to fine-tune your turbo's airflow characteristics, this housing is a well-built option to consider for achieving your power goals.