DanW, the moment you are on boost, all your problems dissapear from a V/E point of view, so thats why in the context of cam durations and timing and lift turbos just render the whole discussion largely irrelevant (certainly in terms of product car specific outputs), although turbo cars do occasionally have VVT technology as well its far less important to the driver if they do or not (although vtec DOES work very well with turbos too, but then so does more boost, so there are suddenly a lot more ways to skin the V/E cat).

Its kind of like talking about the finer points of music and then throwing a 20" sub and a 10KW amp into the mix, it just sort of makes the rest of the discussion pointless as you cant see the finnesse anymore.