Loads of work has been going on with the supercharger, Loads and loads of research has been done. No help from the company who took over Z-engineering... RUF. There meant to not speak very good English anyway, as there a Swedish company. So I found almost all the information I need by looking in to bearings, Different types of bearings, how different types of bearing work. How to fit and remove bearings safely, etc. I found some of it out by watching training videos on youtube, that bearing companies had uploaded. This is the Video for the main bearings, that run inside the supercharger, They