Thanks for such a good thread on your Busa. I've at 80% on buying one in the states.
The big thing that scares me is the wiring. I really don't want to mess that up. LOL
Hey not a problem, I truly love mine and still enjoy tinkering with it. Also two track days under my belt now and the thing is just an absolute weapon on the track. Chasing down serious money motors and semi pro drivers will never get old on track in the busa, it's brilliant!
If you want to make the wiring as simple as possible, it's best to keep the bike controls on stalks behind the steering wheel. This way the only wiring is extending the bikes original wiring loom to stretch out to the four corners of the car and steering column. We made mine more complicated than it needed to be, as I wanted a more car like driving experience and integrated the ford fiesta steering column controls to replace the bikes.
Don't let the wiring put you off though, a good auto electrician should be able to set you down the right path with just a couple hours work. The busa is a defo smiles per miles generator!
Did you ever relocate the water temp sensor? Also, by chance do you know the dimensions of the radiator you are using? I'm going to take your advice and put one of these in at the beginning so I don't have a over heat problem.