Found "inmotion" magazine on the FIA website (very interesting and free).
Article entitled "Formula for change" is very relevant to this thread.
http://www.fia.com/en-GB/Documents/i...ugust-2011.pdf
As you can see from the diagram in the article, the turbo does not directly influence the induction system of the V6 engine in any way. Instead, it is merely used to store energy in the batteries.
Interesting!