V8 powered chainsaw! I thought it was pretty cool.... http://www.youtube.com/watch?v=FvAI7-Qa2Io&feature=related
I saw that "chain saw" when I was competing at the Squamish Days logger sports a number of years ago , and remember it cut 29" of douglas fir in 2.2 seconds. In the form I saw it had nitrious and the motor was all iron ,thats alot of weight to control but man was it cool to see. Rob.
The saw that was used that I saw was a small block Chev with open ports no zoomies, at first I thought it was in the back of the guys truck for a car he had . That was until I saw the idler and bar set up and realized it was a chain saw..yikes!