My thoughts.. http://www.fiat500owners.com/forum/10-fiat-500-appearance-body/143-adding-spoiler-your-fiat-500-a.html#post22151
I don't think water is a problem for most engines. The box I made has a hole and a low spot to drain any out before it gets to the intake plenum. I would bolt the box down under the hood with a tab to the battery mount, then use foam around the edge to seal with the hood, so the box stays put when the hood is raised. Like in the Abarth Assetto Corse the box stays put and has foam around it.I am interested in how to make the intake from RRM more functional with a scoop down the road but I am curious how it might be mounted with the design of our hoods if it were placed in the center, then a box to channel the air on the underside which it seems you'd be the guy to build. I also may not go to cutting into the hood anytime soon but I have considered this as an option but felt it'd be ideal to have the air channeled, this would introduce colder air and a heatshield not unlike the MonsterFlow http://www.good-win-racing.com/Mazda-Performance-Part/17-1006C.html would help, being channeled and not straight into the filter might also lessen the worry of water others have mentioned when they saw the scoop on the RRM SEMA car and the scoop design http://roadracemotorsports.com/store/index.php?main_page=product_info&cPath=76_93&products_id=1129 . I'd want it all molded into the hood which the local body shop could handle and it'd have to be rounded and smooth as is the RRM scoop, I like your idea on your car but it seems boxy on the smooth lines of the 500. I can see why some might worry about water, the filter is plainly visible but as described above it might be less an issue.
I actually just used the Richard Petty Mopar rule "it has to be high enough to be in clean air" that is why the spoiler on the his 1976 Superbird was so tall. As long as it is tilted down and in clear air it pushes down on the rear end. The greater the angle the more downforce. I tried to think of a way to make one adjustable but it seemed it would be to big. I did experiment with 2 different angles but this one I settled on matched the roof line the best and over about 70 you can feel it.Have you gotten any wind tunnel information about the direction of slip-stream? I figure you'd need information like that in order to properly place a wing and it be functional.
and one of those LED exhaust tips... maybe some mudflaps with yosemite sam too.It's awesome. Have you thought about lighted neon washer nozzles or maybe a personalized mirrored panel on the bottoms of the doors?
If you go with the nozzles, I think red would tie in your calipers.
Agreed, this is what I mentioned above about not being smooth enough to match the 500 smooth curves, beyond that I think it is pretty cool what he has done and again I only wish I could create my own items!You guys are brutal, lol. It's his taste, let it be. The only thing that bugs me is the shape of the hood scoop. The RRM version would look cleaner.