Yeah its another way of doing things...I'm just kind of curious how the whole clutch system works though. I mean just stopping the supercharger only does so much and I can't imagine the little BCV being big enough...I dunno.

So just to slide back on topic for a sec...was this news to anyone or did I think up yesterdays news?

I found a good article on the drop in filter only theory. Its not a bonneville but it is a super charged car and I like the test instruments they use
http://www.autospeed.com/cms/A_2232/article.html

hmm...interesting...is it not true you get less gas mileage with a clogged filter? I've never paid attention to the mileage

I think what the article shows is that the filter has to be really clogged before it restricts flow, notice how no filter only gained 0.5 of water over a dirty one? The other thing to note is the need for an improved air intake and not just a replacement filter?

g/* from the MAF to measure increased flow, duty cycles to try to mathmatically evaluate MPG difference, maybe throttle response time...

Screw mileage.

We'll do something with this for sure. I may be back up in WA soon. (where my damn scantool and FSM'* still are ). Hopefully DrJay will have his fuel pump replaced by then.

If nothing else, he can take a series of readings, send me my stuff back when he'* done, and I can try to duplicate it. We have very similar setups now, and we can both try to swap in our stock boxes for comparison. We'll have data within a month without a doubt.

Great topic again.

so if there is no pressure drop, how does a new filter help?

You know I've always thought of a performance filter as a dyno-proven product. At the local parts store there is a demo with two small fans pulling air through a filter and blowing a ping-pong ball up a tube. Putting the fram filter on it drops the ball to about half way or lower, replace it with the K&N and it flies back to the top. It seemed that if it made a difference with those two tiny fans and a lightweight ball, surely it would make a difference when the cfm'* hit the triple digits....

I started doing my homework and the evidence so far backs up what PontiacDad has found:
http://www.hotrod.com/techarticles/70738/

hmm...

One thing I'd liked to have seen them try is varying the filter surface area. And maybe try it on a car with forced induction.

Why forced induction?