Duc906 your a man after my own heart. I hope one day to turbo my Paso. Garrett GT1241.

Thanks for the ideas, they are all welcome. There is a guy here in oz that has made a replacement unit for the Digiplex that might be able to be reprogramed http://www.cajinnovations.com/MyECU/MyIgn.html I might give him a try, it would save having to replace fly wheels, side covers etc.

Fascinating, and some might say insane: spending all that time and money on an antique which was down on power to begin with.

I guess a SC might make the bike have the sort of power it "deserved" when it was new. Personally, I would not do this to my own bike, but I would be happy to buy one already converted. I can imagine the torque on such a motor will be truly stunning, and wonder what sort of figures the bike might make on a lazy 4lbs boost. Also, what sort of fuel consumption???

The bike already suffers Extremely-Small-Tank syndrome and I am confident my wife's 2-litre Mitsubishi burns less fuel than my 906! Maybe you can pod-filter the air, and ditch the airbox, and increase tank capacity at the same time?

Anyway, best of luck to you, your project looks brilliant, and challenging, and I bet any 906 owner would give their left lung for a 906 with "real" power.