What I plan to achieve is more midrange, anything on top is a bonus, anything lost, as long as itís not too much wonít bother me greatly. I ride mainly on the road with as many track days as I can afford time and money to do. The roads and tracks I like to ride in the UK are quite tight and twisty so midrange is what matters to me. If Iím honest, I already have enough power, canít use it all the time but this is an interesting project for me, gives me something to focus on over winter while I canít ride my bike and Iím sure Iíll learn a lot along the way.
Hereís what I have planned:
Degree cams for best all round riding
Raise compression for more midrange while still using pump fuel (95-98RON in the UK)
Porting and polishing Ė Iím going to try high-velocity porting as I have no personal experience of this but like the theory behind it and want the challenge of proving/dis-proving it first hand.
The above three main tasks wonít cost me anything except time, materials such as gaskets and epoxy etc. and a set of slotted sprockets.
I hope this thread will serve as a kind of diary for my project and maybe some useful information, doís and doníts for other people planning similar work. Iíll try to update it as often as possible, work commitments and family life allowing.