What type of engine design is commonly used for high-performance applications?

The dual overhead camshaft (DOHC) design is commonly used in high-performance applications due to its ability to provide more precise control over valve timing and higher RPM capabilities. This design features two camshafts located in the cylinder head – one for the intake valves and one for the exhaust valves. Such an arrangement allows for a more efficient airflow into and out of the combustion chamber, which is crucial for performance engines that require rapid valve operation.

Additionally, the DOHC configuration supports more sophisticated valvetrains, such as variable valve timing systems, which can enhance engine responsiveness and efficiency across a broader RPM range. This makes DOHC engines particularly advantageous for applications where power and performance are priorities, such as in sports cars and racing vehicles.

In contrast, other configurations may limit high RPM performance due to simpler designs.