Ram-air scoops???

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PurpleCherokee

NAXJA Forum User
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I've been looking for a ram-air scoop for my rig and so far have been very unsuccessful :banghead: It needs to go right underneath the drivers side bumber end-cap. I'm pretty much just enlarging the stock foglight cutout and putting it there. So it would look similar to a shop-vac scoop attachment but probably bigger :) So any ideas on where to buy somethin like that? I wouldn't have thought it'd be this hard!
 
It's not gunna suck up any water at low speeds. I'm not even gunna BE in any water at any speeds. And I definately don't plan on driving into a lake at 40, in which case I think where my ram-air scoop is located will be sort of a moot point... So, now that we've got that cleared up, does anyone have anything PRODUCTIVE to say? :)
 
Now that's an avenue I haven't been down yet. Where would you suggest I look for that? The only HVAC stuff I've looked at so far has been tin/metal.
 
I think Zac-squatch had something like this. He used a grass chute off of a riding lawnmower. However, he had his positioned behind the headlight, with some clearance to get more airflow. I suggest the black corrugated piping/tubing that the use to direct water from downspouts through your yard. You can get it cut to any length, it is very cheap, and very flexible.

this is the stuff i'm talking about, plastic drain pipe. http://inlinethumb14.webshots.com/3981/1086048879048844277S425x425Q85.jpg
except don't get the perforated kind. It also comes in several diameters.
 
Thanks guys, but what I'm lookin for is actually the rectangular scoop part. Like this... minus about a hundred bucks. The actual intake hose isn't a problem at all.
 
This is a close as I've found so far... pricey much? Actually they're pretty much exactly what I've been looking for except ideally I'd want the outlet to be in the center. The problem w/the A/C ducts are that their outlet hole is HUGE. Way too big for my jeep anyways. I'd like for it to be 3" and under.
 
That's the closest I can get so far. But it's got those brissel things on it, it's got some really funky clips and stuff on it I'm guessing for attachments or more brissels lol. Also, the actually scoop part of it isn't long enough... and it's got too much of an angle on it too... this is rediculously hard to find for such a simple part...
 
I dont mean to burst your bubble, but Ram-Air is more of a trademark name than any kind of performance gain. The Idea that it forces air into your manifold at a higher pressure is false, it works at supersonic speeds where air flow can be considered compressible, but at low speeds it doesn't quite work out the way most people assume. And that is what I learned from my time in Aerospace Engineering.


It would work very well for a cold air induction setup though
 
I think I know what picture you have in your head. You're looking for a 2-3"x8-10" inlet that funnels to a 2-3" circle outlet in the middle? I completely understand why you want this: to feed in cooler, higher velocity air. A month ago I removed that plate that was supposed to feed air into the stock airbox. I took off the headlight removed the two screws holding the panel and dremelled out a chunk of the header paner(as much as possible but still allowing the corner tension spring for the headlight to be supported). At least it has access to more fresh air now.
 
Ya, you guys have the right idea. I just use the term ram-air cause I guess that's what I'm used to hearing. I too was studying aerospace engineering, for a fairly short time albeit lol, so I understand I'm not actually gunna compress any air but what I'm hopin for is exactly what you guys mentioned, which is to get some nice cold air. Judging from the insane (for me anyways) power difference between a warm day and a cold day (and God have mercy if it's below 20 haha :firedevil), air intake temp has a lot to do w/power so I think this is one thing I can do to get some more consistant power. We'll see anyways. But DAMN I wish I could find a scoop! :banghead:
 
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My brother in law tok out one of his high beam head lights (85 Nissan truck) to do something similar. Sometimes you just gotta get creative...:) He ran a hose from the intake to the hole where his headlight used to be. He likes it so far.
 
smcdonaldaz said:
I'd be concerned with moving my intake close to the ground and sucking up that much more stuff. Why not go this route:

http://www.stu-offroad.com/body/cleanair/cleanair-1.htm

or this:

http://www.madxj.com/MADXJ/technical/technicalfiles/JJcustomSnorkle/CustomSnorkle.htm

It uses the word "snorkel" but would do what you're asking. I'm seriously considering the second for my own rig.
Click to expand...

I appreciate the input but those really aren't what I'm goin for. You just can't beat gettin air pushed in from the front. And if this weren't my daily driver, I'd just pop out a headlight and be done with it.
 
Let me ask a silly question because I have not studied aerospace engineering and am ignorant in some of these things. If you put a filter somewhere in line with the scoop(and I hope you are) do you still realize the benefit of the air being pushed in? Is there a pressure increase thru the filter?
 
It's not pressure increase, it's vacuum decrease. It would take one huge, effecient scoop to actually come up with an actual pressure increase. So ya, the term "ram-air" is pretty misleading. But damn is it a good marketing maneuver lol. Most of the benefit of "ram-air" is the air temp. It's a pretty fast way to get your intake air temps to match ambient air rather than having to insulate the hell outta the intake system. Most guys just go that route for wheeling reasons. And yes, there is a conical filter in-line. Which also prevents suckin any water up through the scoop because if the vacuum from the filter to the scoop gets to be too much (if you were fording high water) then the air will bypass the scoop and come in through the sides of the filter. Pretty nifty trick :)
 
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