klug. Without the clutch engaged, the engine is drawing air normally and simply free spins the rotors in the supercharger. You actually can hear some whine from this. I at first thought this was my fuel pump going out until I figured it out. I will suffer some gas milage loss I suspect but not much. The drain on the system is supposedly only about 2 hp (I cant remember where I read this).
I am going to contact Eaton this week and see if they have a dozen or so superchargers of this style they have as extra inventory. If so, I will plan on doing a kit. Buy in Bulk!