[twpd]

Originally posted by couchcommando
I am well confused, my bike has been built to the 2006 spec, a lot of new items and it has 61hp at the rear wheel. It is running perfect ? Maybe people are tuning the dyno readings and not the engines ?

So just where do the 70hp claims come from ? Are we really believing them ? Are we believing our DD engines can really match an SV650 with it's twin cams, 4 valves and water cooling ?

Please discuss ?

Dynos vary and the output measured depends upon many factors including the operator and whether or not it's been calibrated,

Can a DD bike match an SV? Almost certainly. Stock SV's can vary from 58bhp (lowestI know about) to about 65bhp stock. My racer was only chucking out 64bhp mid-season although I managed to tweak it up to 70.5bhp in the end. Many of the carbed SV Minitwin bikes are in the 64-66bhp bracket with pipes, filters and dynojet kits.