Intake manifolds are a mystery to most people, even the majority of engineers. One thing that is interesting to look into is resoance frequencies.

One thing that might give you guys a bit of an idea was a link i recently found, i thought it to be pretty cool.

http://www.mercurycapri.com/technica...intake/pt.html

 

Thats deep!

 

I've got everything Vizard's ever written.

His old school Theory and Design of Cylinderhead Modification is a bit dated, but sound. Give him a call @ APT sometime, he shares a building + dyno with K&N, provides all their test vehicles, builds some groovy British sportscars despite his Chebby V8 fame.

There's a book called "Basic Flow Theory" that's part of one of the motor presses, it tells about the ghetto DIY flowbench build from an old vacuum cleaner. The author touches very briefly on how exhaust pulses enhance intake flow as a sort of 'reverse shockwave tuning'. It's a couple lines that's totally out of the league of the average enthusiast that book is meant for, but *shrug*.

 

interesting stuff

 

wow thats the best explanation of intake resonance i've seen yet!