[nathan_hui]

Any specific motor to generate a vacuum? Not unless you hook it up to a vacuum. The snow blower motor looks promising - snow blowers run a pusher/vacuum system to push snow out (unless I've greatly mistaken how a snow blower works). Some of our other mentors suggested taking a shop-vac, removing the AC motor and sticking in an FRC motor to make it legal.

More than likely any motor will do (except for the window motor). The hard part will be attaching it to the vacuum generating device (a propeller/impeller of sorts). I believe the key to a vacuum going well is speed, but don't cite me on that.