I like the Procharger with the intercooler, but I also like the rotary screw compressors.
I work for Ingersoll-Rand, the largest air compressor company in the world and we make only rotary screw compressors. They are the most efficient and durable in most appplications. So I guess taking that technology to the auto scene, the positive displacement or "roots" type blower would probably be the way I'd go
