re: 60 MPH...achieveable? Who cares?!? Let blueprint an engine!
Interesting thread for sure. I'll be watching to see if it can be done but also, I'd think that some of the modifications that you're making to one of these engines could also potentially help with the vibration/daily running/longevity of these engines. For the guy who feels 27-30 is fast enough but just wishes that he could see through his rear view mirrors, some blueprinting of these engines could have some serious benefits. Kawasaki once told me that you found that most crankshafts were out of balance from the factory. Anyone doing kits that are based on better running engines, not just speed? The cost of a kit like that might put it way outside of feasibility though.
Anyways, I'll be watching to see where this attempt goes. Just be careful DV!