What is the purpose of a wastegate actuator?

A wastegate actuator controls the boost pressure generated by your turbocharger. It uses a spring to hold the wastegate closed, allowing the turbo to spool up. When boost pressure reaches the spring's set point, it pushes against the spring, opening the wastegate to bypass exhaust gas, thus limiting further increases in boost.

What does the 1.0 Bar spring rating mean?

The 1.0 Bar spring rating indicates the pressure at which the wastegate will begin to open. This corresponds to approximately 16.7 PSI. This setting helps prevent the turbocharger from producing excessive boost pressure, which could be harmful to your engine.

Can this actuator be used with any Garrett turbocharger?

This specific actuator is designed for Garrett GT and GTX25 series turbochargers. It's crucial to verify that your turbocharger model is compatible with this actuator and spring rate before installation to ensure proper function and prevent damage.

Garrett

Specifications

Brand: Garrett
Part #: 759498-0007

Garrett

Garrett G25 Actuator Kit (1.0 Bar) - 480009-0006 16.7 PSI GT/GTX25

$224.00

Key Features

This kit includes the Garrett G25 wastegate actuator with a 1.0 Bar (16.7 PSI) spring.
Designed for use with Garrett GT and GTX25 series turbochargers.
Helps control and regulate boost pressure for optimal engine performance.
Features a well-built diaphragm and spring assembly for reliable operation.
The 1.0 Bar spring targets approximately 16.7 PSI of boost pressure.
Not CARB approved; cannot be shipped to California.

This wastegate actuator is designed for Garrett GT and GTX25 series turbochargers. Please consult your turbocharger's specifications to confirm compatibility.

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Product Details

This kit includes the Garrett G25 wastegate actuator with a 1.0 Bar (approximately 16.7 PSI) spring installed. This part is designed to help control boost pressure on compatible Garrett GT and GTX25 turbochargers. Proper boost control is essential for engine performance and longevity, ensuring your turbocharger operates within safe and efficient parameters.

Garrett is a well-known name in turbocharging, and this actuator is built to handle the demands of forced induction. The actuator uses a robust diaphragm and spring assembly to precisely manage exhaust gas flow around the turbine wheel, preventing over-boosting. This specific spring rate is chosen to achieve a target boost pressure of 16.7 PSI, which can be a sweet spot for many performance applications looking for an improved powerband without excessive stress on the engine.

When installing this actuator, it's important to ensure it's properly connected to your turbocharger's wastegate actuator arm and that the boost signal line is routed correctly. Refer to your turbocharger's specific installation manual for detailed instructions and recommended setup.