POST 1 / ORIGINAL POSTEROriginal post
If you had PSE without the switch, could you get under the car and turn it on/off by hand ? :dont know:
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YOUR RESEARCHPSE Switch
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POST 2Original post
I don't think you could switch the valves by hand, but I would have thought that you could rig up a simple way of turning the vacuum to the valve actuators on and off in the engine compartment.
POST 3 / ORIGINAL POSTEROriginal post
So it works on a vacuum ?
POST 4Original post
Yes. There is a small canister to store the vacuum, which is connected to the inlet manifold. There is a solenoid valve which opens and closes the connection between the canister and the vacuum actuators on the exhaust valve flaps. The solenoid is controlled by a switch. The default position for the valves is open, so if you don't connect up the vaccuum, it is always loud. Therefore, if you connect the vacuum permanently it would always be quiet. It would be quite a simple job to connect it when you wanted it quiet (track days, etc) or disconnect it (and plug the manifold connection) when you want it loud.
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