Don't ax me - I make it up as I go along


Quote:

So...knowing the following:
865 cc = 54hp@6750, 51ft.lb@4800
790 cc = 61hp@7400, 44ft.lb@3500

I don't see it impossible that an America or Speedy with the 790 motor could get up to about the 70hp/50ft.lb range.



I agree. I imagine we gain 3 or 4 horses as soon as that stock pipe is opened up or changed. They're pretty well gagged off when in factory trim. See also - sewing machine on 2 wheels factor on the ride home from the dealer. I remember pulling into the driveway, and wife and daughter, who don't know a motorcycle from an aircraft carrier remarked something like: "That's a great looking bike, but it sounds like, uh, a Waring blender, electric drill, sewing machine..."