How does a turbocharger work? Reggie Wynn from Turbonetics explains the operation of a turbocharger using this cutaway model of their patented Angular-Contact Ceramic Ball Bearing design, which can be used in many different applications from race cars to UAVs(unmanned aerial vehicles).
EngineerBill commented on June 05, 2014
"Free" horsepower? I think not! The "exhaust turbine" is a rather large restriction on the exhaust system and extracts its own horsepower penalty. In addition, there is the time lag as the turbine gets up to speed. As a former drag racer, I'll take a belt-driven unit like the ubiquitous GMC 6-71 any day ... they're quick responsive and efficient. Their major downside is that good sense is required to keep the belt working properly.