High Spec Wastegates
High Spec Wastegates
For peak efficiency and performance
Our motto is “Quality Driven Performance” –
performance as a result of quality and attention to detail.
DSPS are a leading wastegate design and manufacturing company that provides high-performance solutions for motorsport teams.
Our products have won numerous races and championships, across many categories.
Our company is trusted by drivers, mechanics and engineers around the world, delivering fine-tuned components that are designed to produce fast results.
Turbocharging is essential to enhance the power output and the efficiency of the engine, and hot exhaust gases require sophisticated control elements to support race strategies and improve your chances of success.
At DSPS we understand the constant high standards you need to achieve and maintain and we will work closely with you from concept through to design and manufacture to help you reach peak performance.
All our products are enhanced with almost four decades of knowledge and pass through extensive R&D and rigorous testing regimes to ensure you have the reliability in order to achieve and control the boost pressure required for your vehicle.
Our wastegates are intended for use in high temperature and high pressure environments and are more than capable of maintaining the reliability necessary to achieve high performance.
What is a wastegate?
An external wastegate is a device that is designed to control boost on a high performance engine.
Exhaust gases that flow through to the turbine of the turbocharger are limited by a wastegate, controlling the level of boost pressure that the turbocharger is able to produce.
In order to protect the engine, the boost pressure cannot rise indefinitely - both the turbocharger and engine are protected by the wastegate.
Usually, the design is relatively straightforward, with the wastegate working as a valve that is controlled by a pressure actuator linked to the turbo’s boost pressure. A spring ensures the wastegate is held shut. When a predetermined boost level is achieved, the spring is compressed, gradually opening the wastegate. Exhaust gases are then able to pass through, bypassing the turbine and regulating its speed.
What are wastegates used for?
To sufficiently handle stock boost levels, an internal wastegate is usually a standard feature on most factory turbo systems. However, if you were fitting an aftermarket turbo or want more control of the boost, and as a result, the power output of your engine, then you will need to fit an external wastegate.
This type of wastegate is ideally for intended for high performance applications and as a result is more robustly built than internal variations.
What is the purpose of a wastegate?
A wastegate helps to regulate the flow of gases to the turbine and hence provides protection for the turbocharger.
The wastegate activates once certain pressure values have been reached, ensuring any excess exhaust is redirected away from the turbo.
The main benefit of using an external wastegate is their ability to adapt to changing situations.
Internal wastegate
Internal wastegates are usually fitted in most turbochargers, featuring a valve built into the housing of the turbine. An actuator, which features a sealed chamber and a spring, controls the valve and the chamber itself is linked to boost pressure (this is usually done via a pressure source located on the turbocharger’s compressor cover).
External wastegate
External wastegates are generally used in high power engines that are fitted to race and performance vehicles. They are self-contained mechanisms that are fitted to the exhaust header or manifold and typically feature larger inlets and outlets, along with larger actuator diaphragms and higher-pressure springs, which helps it to regulate increased boost pressures more efficiently.
What is the best size wastegate to use?
The size of wastegate to use depends on a few different factors. Before you can determine the correct size, you need to account for things such as the size of the engine, its power output and maximum speed and the level of boost required. Once our engineers have all this relevant information, they can provide possible wastegate solutions that are suitable for the engine, ensuring the device can be safely installed for long-term use.
Championship-winning wastegates for all levels of motorsport
Our external wastegates are relied upon at the very highest level of motorsport, with teams performing in Indycar, WRX, WTCC, SGT and more relying on our specialist expertise to take them to the next level. We’re passionate about the technology we develop and are constantly looking for new ways to accelerate the success of the brands we work with.
DSPS are well respected on and off the track thanks to innovative valve technology that guarantees durability and performance. Our products boost performance reliably – our obsession with quality provides the performance you require.
