Some versions of the D16 engine feature VTEC (Variable Valve Timing and Lift Electronic Control), a technology that varies the timing and lift of the engine's valves to improve performance and fuel efficiency.
The D16 engine with VTEC is typically referred to as the D16Z6 engine. It was first introduced in 1989 in the Honda Civic Si and CRX Si models. The D16Z6 engine produces 125 horsepower and 106 pound-feet of torque.
The D16Z6 engine is known for its smooth power delivery, high-revving nature, and excellent fuel economy. It is considered one of the best four-cylinder engines ever produced by Honda.
