newdean0 0 Posted March 16, 2007 Hi, I've got a turbo charged engine which is also fitted with a variable length intake. At the moment it's still actuated with the standard vacuum diaphragm but I want to switch this to electrical actuation at 5k rpm driven off one of my ECU outputs (it's a MOTEC M4 unit). I guess I'll need a relay from the ECU to drive the solenoid, I was looking at something like this as it takes a DC input: [small 12v solenoid Has anyone done something like this before? Are there better solenoids out there e.g. boot release solenoids? Thanks Dean Share this post Link to post Share on other sites