This ingenious design enhances torque production throughout the engine’s rpm range for greater responsiveness.
The Feature:
A valve within the intake manifold opens and closes to alter the volume and shape of the chamber.
At lower engine speeds, the valve is closed, creating the optimum condition to take advantage of sonic resonance to help pack more of the intake charge into the combustion chamber.
At higher rpm, the valve opens to cancel the resonance effect and allow intake inertia to fill the cylinders more effectively.