Regarding boring the casings, I was remembering back to an ST that I converted to chain drive many years ago, but that used a GPz1100 gear box, all info was supplied at the time by a very helpful Ray Debben. Thanks for the information as I am rather rusty on my Zed knowledge and I didn't realise the...

Thanks to you both for replying and for the information. The blower is an opcon autorotor, positive displacement. I bought a toyota sc12 but its physically too big to get in without major surgery and the opcon is far superior all round, it takes less power to drive and is far more thermally efficien...

Does anyone have a set of low compression forged pistons for sale suitable for a supercharger project? I have z900 and z1000 barrels so bore size isn't a problem. I also need a MK11 or ST alternator cover, alternator rotor, rotor bolt, alternator, starter clutch, the casing behind the engine sprocke...