bpastorb
XS650 Member
As the title says. I know hugh says on his website he builds both but advertises the 277 degree re phase mainly. Is there a reason that the 277 degree seems to be more popular (more power, better all around, etc.)?
mrriggs, are you still making your re-phased cams?
theoretically there should be no vibration.
So you are saying is should be called 83 and 90 re-phased. I was pointing out it is an even no. Commonly called 270/277?
The graph here shows the difference in inertia force.
As an aside, the rocking couple of a 180° crank is very disturbing to me. I think it must be the frequency or the buzzing of the footpegs that drives me nuts. I have had 360° twins for many years and they vibrate but it doesn't effect me until higher rpm. I'd like to experience a 277° XS but I'm fearful I wouldn't like to live with the lumpy take off or the rocking couple, no matter how slight.
Tom