The article was written for a couple of car-magazines, and is not on the web.
The article was an overwiev of different superchargers, and mainly discussed the differences between roots superchargers, helical twin screws and centrifugal superchargers. The angle wasn´t to decide wich was the best, just to declare every concepts advantages and shortcomings and let the reader do the comparison based on his/hers specific needs.
When I was researching this article I was in contact with, Eaton, autorotor, lysholm, rotrex, vortec, paxton, various dragracing teams, trackracingteams, ENEM (a respected tuningcompany that build superchargerkits on lysholm and autorotor), BSR (developer of koenigsegg that changed from lysholm to rotrex), and a source in Mercedes-AMG:s development team. Mercedes is especially interesting in this matters since they (to my knowledge) is the only brand that OEM mounts either roots (eaton) or helical twinscrew (lysholm) supercharges on one engine. This makes them a good platform for comparisons and therefore I base much of my conclusions on their testlabs findings from when they made tests to decide wih supercharger to use for the AMG models. The racers I´ve spoken with also support their results. Unfortunatley, evil me won´t rewrite a 4 pages article from swedish to english,
but I´ll be happy to try to answer your questions! =)
