I wouldnt be so quick to dismiss something as voodoo nonsense... Even though, in the Geo Metro's case, that would be a 200% gain in power
Geo Metro Electric Supercharger Kits Geo Metro Superchargers
They say the same 80hp for everything, they probably got that number from a mustang or something where the engine setup is **** from the factory... I would still give it a try, you wont get 80hp from a 944, but you might get 5 or 10.
Or adding it to the turbo could help it spool better.. people have added weird **** like this to turbocharged cars with positive results