Originally Posted by 8k3
I would think turning a shaft, just like a drive-shaft, adds rotational mass, robbing power from the turbine
I'm sure it's a thin and very light shaft, and it appears the pluses far outweigh the negatives. It would have been sweet if the F8x had a break through tech like this. There were rumors of 3 turbos, then and electric turbo and what was given to us was essentially an N54 with direct injection, valvtronic and cooling for a tuned N54. Not terrible but not ground breaking either... not to mention it sounds like a$$.