Another good article on forced induction

dug up another of these links, really interesting... bunch of math, for those interested... if not, there are the main points in bold and nice pics

http://www.enginelogics.com/cmaps.html

intersting tidbit of the result of some of the math:
"At 15 psi boost with and an inlet temperature to the compressor of 70 deg F the theoretical outlet temperature is 227.53 deg F."

Couldn't find if I've posted this yet:
http://www.corvetteactioncenter.com/specs/c6/2009/zr1/blower.html

Great article on the dynamics of a Roots blower. Specifically about rotor timing, inlet duration, and cycles. It talks about the TVS, but also gives much reference(with pics) to the cycles and rotor timing for the "old" roots blowers. Useful, since even the TVS still follows the same general operation of a "roots".

I read the article in the second post. It was great. However..... I disagree with the last sentiments where the TVS being quieter makes it a better blower. I like to hear the whine otherwise the SC becomes almost worthless to me.