[Rob Channell]

Here is my guess and I'll wait for the smart people to jump in and tell me what I don't know.

Here is my basic hypothesis. "Seems to me if you can figure out how to get a constant 1 bar boost to the outside of the throttle body that the throttle response will be just as good as a normally aspirated ITB setup."

I read a comment saying it(spending $$$ on ITB setup) was a waste because the throttle response is going to suffer due to the long path from the intake to the throttle bodies. The air has a longer path to get to them and the power will only come on when the boost has risen. This could be a moot point if you are keeping the revs up and maintaining boost pressure.

I then started wondering about a two stage boost setup. The turbo boosts the air pressure to say 5 bar or maybe even more. This air is in a large pressure vessel(whatever spare room you can find). Then there is a pressure reduction to maybe 1 bar or a little over of boost. This is the air pressure that is maintained through the intercooler and after, all the way to the ITBs. That way when the ITBs open up there is instant 1 bar boost to go. This would probably only give you a second or two of boost, but maybe by then the turbo would be picking back up.

It's probably a stupid idea, because someone would have already designed a system this way. Maybe the large primary chamber takes too long to get presurrized the first time, making even more turbo lag....

I'll shut up and listen now.