Remeber after Zbrown made the original M90 supercharger setup for the NA 13B and how much of a sensation it was on here for a few months? M90 projects were springing up all over the place. I wonder if any of them got completed.

good question, i'd like to know since i have an M90 that is taking a vacation on my kitchen floor.

And it matters how old the thread is why....?

Hmm, funny to read this now. The high HP GTPs and other GM supercharged cars all have aftermarket intercoolers installed, including my own. 150* delta Ts from inlet to outlet on the blower rather require that. Putting any major boost out of something with as poor an adiabatic efficiency as a roots blower massively necessitates intercooling (or, technically in this case, aftercooling). I've got a 315 wheel HP GTP sitting in my driveway that proves that fact rather well. ;)

because the pics are gone for reference and the people who posted will likely not be checking up on this thread to answer questions?

The M90 is way too damn inefficient to be used on a rotary with much success. It's one step above the Camden charger for most useless things to bolt on to your car.

Get a whipple!