Thread: bypass valve vs clutch

> Not much up on clutched blowers, but I would imagine that the blower would have to be bypassed when the clutch is disengaged. A blower that's not turning would be a big restriction to airflow. A vacuum operated adjustable bypass would have to be the least complex to setup/maintain.

> You got to realize what a by-pass valve really is and the purpose for them. By-pass also known as a surge valve, is there to help the excess air that the supercharger compressor is producing from going back into the supercharger causing damage to the unit itself. When you let off the gas your throttle body closes and the air that the supercharger is pushing has no where to go. The by-pass valve lets this excess air out so that it does not...