what you are wanting to do is pretty tricky. you also can't force air into it at an idle. i think you are looking at more trouble than it's worth.
on the other hand i have seen something similar to what you are wanting to do on ebay for hondas. it's been awhile since i saw it but i'm pretty sure it could be adapted and it seemed to look like it would work. just an idea.
on the other hand i have seen something similar to what you are wanting to do on ebay for hondas. it's been awhile since i saw it but i'm pretty sure it could be adapted and it seemed to look like it would work. just an idea.