Originally Posted by dbtk2
The rotors have a different coating on them IIRC. Its basically like the difference between a Gen III and Gen V M90.
Yea '94 is when they started putting teflon on the rotors, raising VE a little. I would guess '94 would be cooler. The heat is from the turbulence of adding the uncompressed air to the compressed air. The roots supercharger actually pulses, so it creates a lot of turbulence with which to cause heat. I would assume the '94 being able to add the same amount of air (as a '93) with less rotation (pulsing) would mean less heat. Just a thought though