Hope you guys don't tear me to shreds, I really have done a fair amount of research but want to bounce ideas and opinions off some other humans.
I have just started getting my mini ready to convert to motorbike engine. Its always been my plan for the 10 years of owning the car, and i always thought i would use a promotive kit, but i have decided i would rather build than buy .
My research is starting to frustrate me a little so i thought i would ask in here for some help.
The main stumbling block is what engine!? Why do so many people use the R1 engines? These are becoming harder to come by now, especially the older ones. Will the 5VY and the 4C8
physically fit in the car? Or is there a better donor bike i could use?