Its pretty unknown territory really, a few people played with the idea before but unsuccessfully (steve pit and co.) they had problems with the oil seals & the top bearing.
I personally think it can be done but you need 3 things:
Viton charger seals (they have a higher temperature range than the cheaper Nitrile seals) <- Pete sells them on here.
High RPM top bearings (
http://www.bar-tek-tuning.com/lshop,showdetail,28272,en,1312484027-28327,g-lader.1132925576,1100007,9,Tshowrub--g-lader.1132925576,.htm) I contacted them about this bearing and it should be good for up to 18,000rpm internal charger speed
Stand Alone Oil Supply, this will cut down the pressure on the seals and reduce the temperature as well (possibly only a negligible amount though) as the friction of the seals on the main shaft will get very high at these huge RPMs
I'd only want to run it through a paper filter too, but I like my charger internals to be clean and dirt free.
