i think the 15-71 blowers are actually sucking more like 900 hp at the speed they are running them, the lyshom screw type compressor before they outlawed them were in the 500 range, which was one of the things that made them popular, that and less heat. the blower doesn't automaticly requier that much power to turn at all speeds, they are just running them at 50+ psi which is a huge load with all of the fuel they are dumping in too, a top fuel car is on the verge of hydro lock theres so much fuel in the chambers at tdc

Quote Originally Posted by AutoXr
I've read that a modern day supercharger sitting atop a top fuel dragster requires over 500 hp to operate. Most V8 engines can't even turn it.