hello mezilia welcome to this site hope to c u on here alot more often in the future. Well with your question which charger would suit your s1 motor well thre is alot of variety of chargers out thee. The ones i hav heard of is the RAPTOR super charger and the EATON somthing which is used in the pre ecotech motors. Well thats about it i can tell you but im sure theres all th other users on here that can help you with your question wen they have loggged on so do keep an eye on ur post oftenly mezilia. B4DNXXXX
i think hes talking about an ecotec s/c convertion. mate you would be better off strenghtening your original motor and installing an aftermarket supercharger, unless your motor and gearbox is stuffed. a good kit is around the 6 grand mark.