I've been reading up on using helmholtz to tune intake runner length, and have got to the point of wondering what this does in a turbo car.
Do you could from the filter to the turbo and one tuned length, and from the turbo to the valves as a second tuned length, or would the entire intake length(from filter to valve) be counted?
Personally, I would think that they would have to be tuned separately(although they would still be linked).
My reasoning is that you will have waves bouncing of each of the turbine blades and back towards the filter, and vice versa in the first section, and pretty much the same in the second section from the valves to the blades, and vice versa.
Anyone done any research on this, my googling only seems to find patent applications, even with a "-patent" in the search.