Originally Posted by Däs Schmoo
Why wouldn't it be more efficient? The turbo runs off wasted exhaust energy whereas the supercharger runs off belts, taking away power and doing nothing with all that wasted exhaust energy potential.
Turbo does create backpressure as with a supercharger it is free flowing, but superchargers start to lose efficiency above 8PSI. I preferably want a turbo, but I think I'll end up with a used JRSC, because used turbo kits for my car are hard to find for less than 1K.