I still don't see how spraying it through the rotors has a worse effect than after?
A) It atomizes with the air and mixes almost perfectly with one nozzle
B) When the rotors heat the mix up that means the mix is taking the heat out, hence an inter cooling effect and cooling the blower at the same time. That is what you want right? a cooling effect?
C) It's easier to install no taking off the blower, no taking off the manifold, and less chance of error.
D) it's out of vacuum so you don't need a one way valve to add to the chances of something failing/leaking especially straight into the motor...?
There are many more reason's why to put it before the blower and not after. If you think this is going to be anywhere near as efficient as an intercooler you're very wrong. This is merely just going to be an octane booster depending on what you use, and a minor intercooling system. This is like misting a red hot piece of metal, where as an intercooler is like submerging the piece of metal right into the water. I don't see how doing all that work to drill and tap a manifold knowing it's not as efficient as going through the blower can even be an option? It also will take up the little bit of space between the rotors and make the supercharger that much more efficient. Many positives, not so many negatives.... Oh and the myth of the alky taking off the Teflon lol, do a little reading and see what it takes to strip Teflon.
Say you are standing in front of a fan (the blower) and you spray a mist of water at it, what happens? It blows the water back into your face and all over right? Now stand behind the fan and do the same thing, what happens? That's what you want, a mix of the air and the alky together going in the same direction.
