People always ask, supercharger or turbocharger?  My thoughts on the matter is what exactly are you going to use it for (the vehicle), what characteristics do you prefer on power delivery, and is vehicle noise an issue for you.  Both can provide mass amounts of power, both can be reliable, both have been used in motor sports and production cars.  For me it all depends on the type of car it will be on because if i love the N/A noise it make then I will seriously consider supercharging and if not then turbocharging would be best.  Superchargers, at one time, had a sound of an annoying cat.  That all stopped when the Rotrex superchargers came out on the market among others.  Now I am not one that is interested in the big horsepower numbers although that would be great fun.  I think this 350z by GarageMak out of Japan can sum up what i would be looking for….

This Z has a Rotrex unit on the VQ35HR.  I believe the unit is a C38-81 but do not quote me on that.  Now if it were turbocharged the high pitch note would be obsolete due to the gases of the exhaust being recycled.  Where the supercharger is nothing more than an air creator and feeder not a recycler, therefore keeping the high pitch noise of the engine.  Case in point….

Here is the same run without the music if interested….

It comes down to preference within each and every person how they want to modify THEIR car.  They both work the same.  Each have one up on the other on certain things.  But my choice for a Z33 with the VQ35HR would be a supercharger (Rotrex), and in retrospect on the VQ35DE I would go turbocharged.  What would you pic for your vehicle and why?   Til’ next time…