Originally Posted by velociabstract

Beautiful! Most that choose a supercharger pulley over the crank pulley is for ease of installation and removal. Literally 15 minutes once you have done it a few times and have the tools you need. Remove fan, remove belt, remove pulley and reverse. The crank pulley requires lots of torque and a special tool to keep the engine from turning while the new new pulley is torqued down. A lift is highly recommended and 2 people. A 3/4" torque wrench that reads over 150 ft lbs and a breaker bar. The 178 crank pulley makes more boost/power than a 65mm supercharger pulley. Can't speak about the other pulleys as I've only had the 65 and 178 on my car.

Les