How does a DOHC engine differ from a single overhead camshaft (SOHC) engine?
I’m comparing vehicles with DOHC and SOHC engines. What are the differences between these two camshaft configurations, and what are their respective advantages?
How does a DOHC engine differ from a single overhead camshaft (SOHC) engine?
A Dual Overhead Camshaft (DOHC) engine has two camshafts per cylinder head, one controlling the intake valves and the other controlling the exhaust valves. This configuration allows for more precise control of valve timing and lift, improving engine performance and efficiency. In contrast, a Single Overhead Camshaft (SOHC) engine has one camshaft per cylinder head, operating both the intake and exhaust valves. While SOHC engines are simpler and lighter, they typically offer less performance potential than DOHC engines, which can achieve higher RPMs and better airflow.