Does the asymmetrical turbo have a wastegate?

An asymmetrical turbocharger is designed with an unequal size of the turbine and compressor wheels, intended to optimize performance across different engine RPM ranges. This design helps enhance efficiency and responsiveness without necessarily requiring a wastegate.

The purpose of a wastegate is to regulate the turbocharger's boost pressure by diverting exhaust gases to bypass the turbine once a certain boost threshold is reached. However, many asymmetrical turbo configurations operate efficiently without a wastegate. They achieve desired boost levels through their inherent design characteristics that allow for better airflow management and quicker spool times.

As such, the characteristic design of asymmetrical turbos inherently minimizes the need for a wastegate. This is why the answer "No" accurately reflects the situation for typical asymmetrical turbo installations.