Remembering that boost is not calculated by 1 bar from one turbo into another doing the same is not 1+1 = 2 Bar plenum boost... You multiply the absolute pressure ratios, so 1 bar from each is Abs 2 x Abs 2 = 4 - atmo = 3 bar plenum boost...
NO projects as of yet. I have become extremely interested in turbocharging/supercharging after buying to books wrote by Jeff Hartman. Lots of information and the more I read the more questions I have. This is a very informative site with so many experenced people helping out.