The bypass valve will be open when the system is off (bypassing the compressor and intercooler) and close when the e-charger is running. Original I was going to use electronic throttle body as the bypass valve but changed to a DN50 ball valve to ensure tight shutoff and no boost leaks when the system is in operation. A electric actuator was selected for the valve so that starting and stopping the system could be automated.
The bypass valve will be plumbed in using 2.5 inch aluminium tube. The upstream side of the bypass valve will tee-in between the airbox outlet and compressor inlet.
The bypass valve downstream tube-work tees in downstream of the intercooler. This is the location at which the charge pipe will penetrate the floor of the vehicle before heading towards the engine. To allow this a whole was cut in the floor and a box fabricated to receive a flange welded to the charge pipe.
