Helmholtz Theory

[BADfish10]

Ok so I’m starting to think i need a better social life but this stuff is starting to get really interesting.

I have been wondering about Plenum sizing and design for a while then i stumbled onto a post in a Ferrari forum pointing me to the Helmholtz Theory and tuned port being one of the key reasons a NA motor can push out 118bhp per litter in road going form "F360 Stradale if you’re interested" and have what the busso owners would call an undersized Plenum.

Any way i now have my answer with completed formula and that is a great start, But i would now like to find a good book that covers the topic better with more of an emphasis on real world application sort of how to apply formula to a restricted application.

So though would ask here to see if anyone has read a good book on the subject?

Cheers