Is this something like you're trying to do?
http://www.youtube.com/watch?v=92lpSQT1ZRY
http://www.youtube.com/watch?v=kbA46qLUIhk
There was a guy that had an emaxx-type of vehicle with a turbine but I can't find the vid right now. IIRC, it moved, but created a lot of wind for not much motion...