[Nitric_Acid]

Hello all, I'm new here. I'm interested in fabricating a vent/scoop for the hood of my car. I've looked around a bit and searched through the backposts, and I've found some good information on how to make one. What I haven't found is anything on how they work.

I'm the type of guy who likes to know how something works inside out and backwards before they start in on it, and all I've found in terms of how they work is usually vague, and often contradicts other things I've read. This leads me to be curious as to whether there are different ways to modify the hood with vents/scoops/miscellaneous holes in terms of function.

I know I probably sound like a pathetic newb, but thanks in advance for any and all help, it's greatly appreciated.

[autocol]

depends what your scoop is supposed to do... is it an intake scoop, ie, one that sucks in cold air and sneds it (hopefully through a filter) into the carby, or just an engine bay vent/scoop to help keep engine bay temps down?

[Nitric_Acid]

That was actually part of the question. How do either of them work?

[autocol]

ah...

well, an intake scoop is one that draws in air and feeds it into the carby. this is, in all probability, the type of scoop you're talking about. it's the type you'd see reaching for the sky on dragsters.

a vent is more just a slot, louvre or whatever whacked in there to let the hot air escape, for reduced temperatures, or better looks.

the best way to figure out how they actually work is go to a show and look at some. but basically, for an intake scoop, it needs to draw air in from the front, and then, as you close the hood, match up with the intake on top of the carbies so that the carbies draw their air from their, where it's colder and denser (and hence FASTER) than the air under the hood.

no offence, but if you're asking how they work, you should probably go buy a cheapo hood for some POS, and try it out on that. otherwise you're extremely likely to ruin your car's hood.

[Nitric_Acid]

Thanks a lot, Autocol. I was planning on buying a junker hood or two to practice on (maybe just a junker hood from the same make and model, and if it comes out right, switching out the hoods). I'm also planning on going to a car show later this month, and I will take your advice on paying attention to how they work. But, you did clear up a lot of my confusion; the big problem was I read stuff on them a couple of other places where they didn't distinguish between a vent and an intake scoop. Thanks a lot for your patience with my newbieness.