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€138,00 EUR
Wastegate valves for turbo systems – Turbosmart and TurboWorks
At Select Parts you will find wastegate valves for controlling boost pressure on heavily tuned cars. We offer external wastegates, mounting adapters and components for building and upgrading turbo systems.
In this category you will find Turbosmart and TurboWorks products, as well as TiAL-style versions for specific setups.
What is a wastegate valve?
A wastegate is a valve that regulates the amount of exhaust gas passing through the turbine. By diverting part of the gas flow, it helps control the pressure generated by the turbocharger.
A correctly chosen wastegate is important for stable turbo operation, especially on engines with increased power.
External wastegates – 38 mm, 44 mm and other sizes
External wastegates are used on turbo systems where boost is controlled by a separate valve mounted on the exhaust system.
We offer different sizes and configurations, including:
- 38 mm wastegates – for compatible turbo setups.
- 44 mm wastegates and V-band models – with suitable connection components.
- Wastegate adapters and flanges – for mounting and connecting different components.
- Wastegates with different springs – to choose the base pressure for your system.
Turbosmart and TurboWorks wastegates
Turbosmart is an established maker of boost control components, including external wastegates for high-performance applications.
TurboWorks offers solutions for various tuning projects, including external wastegates, flanges and mounting components.
When choosing, pay attention to the diameter, connection type, base spring pressure and the requirements of your specific turbo system. See also boost controllers and V-Band clamps.
How to choose the right wastegate
The valve size should match the exhaust gas flow, the turbocharger's characteristics, the exhaust manifold and the desired pressure.
Base spring pressure is not the same as the maximum pressure the system can control. Incorrect selection or installation can lead to unstable boost pressure.
Why Select Parts?
We rely on quality, real stock availability, accurate fitment information and competitive prices. We offer advice when choosing wastegates and components for turbo systems.
What is a wastegate and what does it do?
A wastegate regulates turbocharger pressure by diverting part of the exhaust gas around the turbine. This gives you control over boost pressure and helps prevent it from rising too high.
What is the difference between an internal and an external wastegate?
An internal wastegate is built into the turbine housing and is usually controlled by an actuator. An external wastegate is a separate valve mounted on the exhaust system. External units are popular in custom turbo builds and in applications with higher demands on boost control.
How do I choose between a 38 mm and a 44 mm wastegate?
The choice depends on the turbocharger, the exhaust gas flow, the design of the exhaust manifold and the boost pressure you want. A larger diameter does not automatically mean a better result. The size has to match the specific turbo setup.
What does the wastegate spring pressure mean?
The spring sets the base pressure at which the valve starts to open under the given operating conditions. For example, a spring marked 0.5 bar is used to set an approximate base pressure, but actual behavior depends on the configuration and control of the turbo system.
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