Exhaust gas bypass valve system for a turbocharged engine

A system comprising:

• an exhaust gas bypass valve coupled within a bypass pipe
• a tuned pipe coupled to an exhaust manifold of an engine, said tuned pipe comprising a diverging portion and a converging portion;
• a housing having a passage therethrough;
• an exhaust gas bypass valve coupled within a bypass pipe, said bypass valve comprising a valve member rotatably coupled within the housing and fluidically coupled to the tuned pipe, said valve member rotating about a valve axis, said valve member substantially balanced about the valve axis;
• a turbocharger;
• a motor coupled to the valve member;
• a motor position sensor coupled to the motor generating a motor position signal;
• an engine speed sensor generating an engine speed signal;
• a throttle position sensor generating a throttle position signal;
• a boost pressure sensor generating a boost pressure signal corresponding to a boost pressure of the turbocharger;
• a tuned pipe pressure sensor generating a tuned pipe pressure signal;
• a tuned pipe temperature sensor generating a tuned pipe temperature signal;
• and
• a controller coupled to the motor position sensor, the throttle position sensor, the tuned pipe pressure sensor, the tuned pipe temperature sensor, and the boost pressure sensor, the controller controlling the motor to control a position of the valve member in response to the motor position signal, the engine speed signal, the throttle position signal, the boost pressure signal, the tuned pipe pressure signal and the tuned pipe temperature signal.