I've created an easy to use supercharger boost calculator that might be useful when planning your engine builds.
www.podifold.com/boost.html
It works on the formulas created by Verbaliser that can be found here.
The end figure is approximate as there are lots of factors that can affect the boost such as the condition of the supercharger, length/diameter of connecting pipework, leaks etc.
However, It does seem to tally up pretty well with what I've found so far on the variations of my own system.
Edited by podifold, 26 March 2016 - 05:56 PM.