A wastegate is a crucial component in turbocharger systems, responsible for managing exhaust gas flow to the turbine to regulate its speed and prevent damage. This valve diverts excess exhaust gases away from the turbine, controlling its speed and consequently regulating boost pressure.
Operated by a pressure actuator linked to turbo boost pressure, the wastegate opens when pressure exceeds the set limit, allowing excess exhaust gases to bypass the turbine, thus regulating its speed.
Two main types of wastegates exist: internal and external. Internal wastegates, found in most turbochargers, are built into the turbine housing and controlled by an actuator linked to boost pressure. External wastegates are usually reserved for higher power engines fitted to performance and race vehicles, external wastegates are separate, self-contained mechanisms that are usually fitted to the exhaust manifold or header. External wastegates feature larger inlets and outlets, higher pressure springs and larger actuator diaphragms, so that they can effectively handle higher boost pressures
Whilst perfectly sufficient for the vast majority of motorists, internal wastegates are only designed to handle the performance of a turbocharger at stock boost levels.
If you are a performance enthusiast looking to modify your engine and maximise performance, it’s important that you have a wastegate that’s correctly sized for your turbocharger to prevent damage.
If you’re fitting an aftermarket turbo, you may need to invest in an external wastegate to effectively control the additional boost and power (and many larger aftermarket turbochargers aren’t fitted with internal wastegates anyway).
At SHOUYUAN, our friendly teams are experts on everything turbo related, and if you have an inquiry, we’re always happy to help. For assistance on any aspect of turbocharging, please email info@syuancn.com. In addition, At SHOUYUAN, each CHRA, turbocharger and compressor wheel and repair kit. is built under strict specifications. Manufactured with 100% new components. We have a wide range of Aftermarket Turbochargers available for Caterpillar, Komatsu, Cummins, Benz, etc. What’s more important, we have ISO9001and IATF16949 certification.
Post time: Mar-13-2024