What is a supercore assembly?

A supercore assembly, also known as a center housing rotating assembly (CHRA), is the core of a turbocharger. It contains the compressor wheel, turbine wheel, and the shaft connecting them, along with the bearings and housing that support these rotating components. You typically pair a supercore with a separate compressor housing and turbine housing to create a complete turbocharger.

What does 'Reverse Rotation' mean for this turbocharger?

Reverse rotation refers to the direction the turbocharger spins. This is particularly useful in twin-turbo applications where two turbos are used. Using one standard rotation and one reverse rotation turbo can help simplify exhaust and intake plumbing, making the installation cleaner and more efficient.

What are the limitations of this supercore?

This Garrett G30-725 Reverse Rotation G-Series II Supercore is not CARB approved. This means it cannot be legally shipped to or used in California due to emissions regulations.

Garrett G30-725 Reverse Rotation Supercore 934121-5001S

Name: Garrett G30-725 Reverse Rotation G-Series II Supercore
Brand: Garrett
SKU: garrett-garrett-g30-725-reverse-rotation-g-series-ii-supercore-t14-836985
Price: 2060.37 USD
Availability: BackOrder

Garrett G30-725 Reverse Rotation G-Series II Supercore

$2060.37

On Backorder

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

Garrett G30-725 Reverse Rotation G-Series II Supercore. Not CARB approved.

Key Features

This is the Garrett G30-725 Reverse Rotation G-Series II Supercore.
Part number 934121-5001S.
Designed for custom forced induction builds.
Features reverse rotation for simplified plumbing in twin-turbo applications.
Represents an updated approach to turbocharger technology with improved efficiency.
Internal aerodynamics are refined to handle higher boost pressures.

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Product Details

This is the Garrett G30-725 Reverse Rotation G-Series II Supercore, part number 934121-5001S. This supercore is designed for custom forced induction builds where precise control and advanced airflow characteristics are paramount. It's a well-built component that forms the heart of a high-performance turbocharger system, allowing builders to pair it with various turbine housings to tune for specific engine needs and power goals.

The G-Series II platform represents an updated approach to turbocharger technology, focusing on improved efficiency and durability. This particular supercore features reverse rotation, which is often used in twin-turbo setups to simplify plumbing and packaging. The internal aerodynamics have been refined to handle higher boost pressures more effectively, leading to better power delivery across the RPM range compared to older designs. Its robust construction is intended to withstand the demanding conditions of performance applications, ensuring reliability when you're pushing your engine hard.

When building a custom turbo system, selecting a solid supercore like this Garrett unit is a critical first step. It's important to note that this component is not CARB approved and cannot be shipped to California. You'll need to select a compatible turbine housing and other supporting components to complete your turbocharger assembly. Refer to Garrett's technical documentation for detailed specifications and recommended applications to ensure this supercore meets the requirements of your specific build.