you could always have a look at the mini cooper S supercharger (it's a roots type supercharger) and with some modifications it should be easy enough to make that fit... but if the setup of said engine doesn't leave usable space you might want to look into centrifugal type superchargers, the likes of vortech, rotrex or HKS they all make universal kits and because they are small (look more like turbo's) they usually are easier to install... one thing though they hold their prices well so expect to pay more than you'd pay for a complete turbo kit stage 2 for your engine, that is if those are available for your engine...