Variable Resonance Induction System (VRIS)

DESCRIPTION
The inside of the dynamic chamber is divided into two sections, interconnected by two shutter valves and connecting pipes for Variable Resonance Induction System (VRIS) operation .This system opens and closes the shutter valves according to the engine speed to improve the charging efficiency by utilizing the pressure waves of the intake air.There are two vacuum chambers under the left bank of the intake manifold that are used to supply constant vacuum to the VRIS shutter valve actuators during wide-open throttle operation and other low-vacuum, low-speed situations.




OPERATION
Refer to the image for system operation.