Ram air hood
 

Im thinking about fabricating my own ram air hood, the hood scoop and all. here is what I planned:

Make the hood scoop by laying fiberglass in my own design
Cut the hole in the hood under the hood scoop (air flow)
Run flat tubing such as found on the air box from the stock gen 2's over and down to where the intake is (along the hood) and over the square hole (where the tubing from the hood will meet the tubing from my filter) put weather stripping for sealant
Run tubing from over the air filter (K&N filtercharger) to under the other tubing to connect together when the hood is closed (weather stripping on both sides)

My largest problem seems to be in figuring out how to get the tubing around the filter so the air that the scoop is sucking in will be pushed through the filter

is this even worth doing, or even possible?

no one knows anything about this?

I'd recommend doing a search... (damn, i feel old saying that :)), this subject has been beaten to death, then left for dead on the side of the road of common sense, right before being hit by the big rig of stupidity :)

In short: ram air doesn't exist until you reach ~600Mph (i forget the exact number). All you're talking about is a cold air intake, but instead of taking it from the highest pressure point of the car (the front), you take it from the lowest pressure point (the hood). So in essence, you're trading a bit cooler air for less volume..

It will give you colder air than where it's positioned now.. and potentially a bit more of it, but most people seem to agree that it makes much more sense to funnel the air from somewhere on the front of the car.

ok, but that still doesn't solve the proble of not knowing what to do about geting the air throught the filter into my engine

oh and wonko....did you know your rims are on in two different directions? I didn't know if it was intentional or what so i thought I'd point it out

Basically Wonko's info is all correct. To be effective, you need to be travelling quite fast, so most of the time it has little "ram" effect. Plus you're supposed to install a ram-air intake at the front of the car, not on the bonnet where it'll be considerably less effective. Lastly your ducting will spend most of the time being baked by the engine below, so intake temps will suffer.

If you want a custom intake that makes you power, concentrate on lowering the intake air temperature instead. It's much easier and far more effective. If you can position the pick-up at the nose of the car facing forward then that's a bonus.

natural atmospheric pressure seems to that itself just fine. when there's a pressure loss, air moves and fills the "hole." ram air is kind of funny. it seems to "ensure" that air will be there. air does that itself. i would work more on a "cold air" theory than ram air.
honestly, i imagine your attempts will end up in a disappointing way. i'm not gonna say "dont try new things," but a typical little 13B isn't exactly a beast. do you have an n/a and are just lookin for a few more ponies?

There has been a lot of guys who modify their intakes to pull air from below the engine bay, sorta "scoop" it up towards a cone air filter.. or some bring it in under the lights (requires a lot of cutting i guess, i've never really looked into it), and some guys just run their cone filters all the way down, some so low you can see them sticking out a bit underneath the cars. May want to make a new thread entitled something along the lines of "Best way to get cold air into the engine?" or something like that.. may attract a few people who have done intake mods.


yeah, i did know that, it's due to the wear of my tires.. the two better ones are on the rear for traction... I'm going to be getting some new rims/tires, so it'll take care of that mess.

edit - since you're the 200th or so person to point it out, i finally took the time to fix it for the sig picture :)

ahh I see...well yea, I'll alk to some motorhead friends and see what they think, and 1. how much HP would running air from the ground give me 2. sorry if I sounded like I was knockin' your car, I think the paint job is grand, wish I could paint... 3. yea casio, for right now I'm just ttryin to gain a few horses, leading up to the stage 2 KKK turbo kit as soon as I have the cash

try just running some duct tubing from where the fog lights are supposed to be, provided you dont have them of course. seems like the most practical way. or at least maybe cheaper than trying to run your intake down. and would save you the trouble when it's raining also.

Hagakura - no offense taken :) That was just the 500th time or so i've been told, but the first time i actually had enough spare time to open up photoshop and change it :)

I'd go with PolyFc's idea first, (mainly because it's cheap and easy), then go for the drop cone if you want something more.