hey, pmizell, my fans don't turn on when the car is off, I kinda wish they did and that the coolant would cycle through the system... but unfortunetaly it doesn't. Everyone else, thanks for your help, I was looking at removing the viscofan as a means to gain some performance. Hot Rod did a write up on it, and they came to the conclusion that the viscofan drains more power than the alternator trying to recharge the battery. Does anyone know how many CFM the fans respectively move? Thanks!