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Old 12-29-2008, 08:36 PM   #1
Blase
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Default hood-vent ram-air intake

So I was bored today, and I decided to fool around with my intake again. A couple of years ago, I was messing around
and I did this. I ran my intake through the roof vent and slapped a cone filter on it.



I only did that temporarily because of the snow and rain in chicago, and it wasn't a intake that I could quickly stick back
under the hood. I turned my intake into a real cold-air that sat in the fender wall with the filter all the way down by the bumper vent.





This time around I wanted to do something that was pretty much the same, but had a real ram-air effect with the use of the hood vent.
I disconnected my cold-air and played with the piping until I could get it out of the vent.



I just ran the same piping I had hooked up to my torque/air box (ganzflow style) and ran it up towards the hole in the hood.



Instead of a filter, I put some mesh at the inlet.

This is how it looks with the hood closed.





I was very surprised with the results when I took the car out for a ride. Butt dyno was very happy. It didn't make a crazy difference down low,
but mid-range and up was crazy. It might because the intake had no real filter on it, but I think the ram air effect really helps at WOT.
I think this will remain another temporary set-up because it just looks rediculous, and I'm afraid of running no filter.
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Last edited by Blase; 12-29-2008 at 09:01 PM. Reason: I suck at putting up pictures
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Old 12-29-2008, 09:02 PM   #2
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P.S. Sorry for sucking at hosting pictures.
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Old 12-30-2008, 01:01 AM   #3
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is this real?
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Old 12-30-2008, 01:35 AM   #4
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Quote:
Originally Posted by RaceFaceXC View Post
is this real?
I'm going to go with yes. I've thought about using the hoodscoop as a means to do this. Just can't get around that annoying MAF though
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Old 12-30-2008, 12:01 PM   #5
ibanez24_7
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Cool idea but ya I'd definetely put a paper filter or sponge over that. Ever try running your intake up to your hood scoop to get the ram air?
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Old 12-30-2008, 12:13 PM   #6
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There was just another thread like this in the proven power section.... ::slaps head::
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Old 12-30-2008, 04:57 PM   #7
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That looks like you can still attract larger particles floating in the air.

But, because it's winter, I guess dust won't be an issue...
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Old 12-30-2008, 06:01 PM   #8
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Not to be a pessimist, but...

The first picture is absolutely ridiculous. I don't know what to catagorize it as, but it is simply stupid. I understand the idea, but it looks foolish, will witness extreme turbulence, cuts down on aerodynamics, etc. It's ridiculous.

The filter in the fog light is asking for mass water consumption, and will not work as a decent ram air because it won't get as much air that low to the ground.

The last one is simply asking for trouble, and doesnt look like it will work as a ram air intake in the first place.

And what happens when it rains? or someone pulls off your wire mesh and sticks a golfball in your intake????

I'll give you one thing, you're highly creative and I like your interest in innovation, I just feel that these attempts were poorly executed.
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Old 12-30-2008, 07:41 PM   #9
Blase
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Quote:
Originally Posted by 96SubyImpreza View Post
Not to be a pessimist, but...

The first picture is absolutely ridiculous. I don't know what to catagorize it as, but it is simply stupid. I understand the idea, but it looks foolish, will witness extreme turbulence, cuts down on aerodynamics, etc. It's ridiculous.

The filter in the fog light is asking for mass water consumption, and will not work as a decent ram air because it won't get as much air that low to the ground.

The last one is simply asking for trouble, and doesnt look like it will work as a ram air intake in the first place.

And what happens when it rains? or someone pulls off your wire mesh and sticks a golfball in your intake????

I'll give you one thing, you're highly creative and I like your interest in innovation, I just feel that these attempts were poorly executed.
I dont think pessemistic is the word...

This whole thing was done just for fun, not even to be a temporary intake nor a permanent set-up. I wouldn't drive around with a filter-less intake sticking out of my damn hood, so you don't have to be such a "pesimist", if you think that is an accurate description of your reply. As for the other route, into the fender, I've had it like that years and I've never had a problem. I got my hands on some free piping and just put something together. I don't see what the big deal is.
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Old 12-30-2008, 09:29 PM   #10
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Quote:
Originally Posted by 96SubyImpreza View Post
Not to be a pessimist, but...

The first picture is absolutely ridiculous. I don't know what to catagorize it as, but it is simply stupid. I understand the idea, but it looks foolish, will witness extreme turbulence, cuts down on aerodynamics, etc. It's ridiculous.

The filter in the fog light is asking for mass water consumption, and will not work as a decent ram air because it won't get as much air that low to the ground.

The last one is simply asking for trouble, and doesnt look like it will work as a ram air intake in the first place.

And what happens when it rains? or someone pulls off your wire mesh and sticks a golfball in your intake????

I'll give you one thing, you're highly creative and I like your interest in innovation, I just feel that these attempts were poorly executed.
To be really honest:
Someone had to say it.

I'm pretty sure he knows the risks though...
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Old 12-31-2008, 01:52 PM   #11
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Hey, of course I know it looks rediculous. I stated that in the first post. To go on and on about areodynamics and such is a joke. I never said this is something I'd be rocking around town at all. I'd be too embarassed. This was just in good fun out of bordom. yes I know the risk of having a flailing pipe or air filter sticking out of my hood. That's why I don't actually drive around like that. On the other hand, with intake in the fender/bumper it is a different story. The intake sits back in the bumper behind the orange vent. If its rainy out, I put the vent in. If its clear, I leave it off. After 4 full year of this I've never had a problem, so please dont talk down to me like I haven't thought through the idea of soaking up water and hydrolocking my engine.
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Old 12-31-2008, 03:15 PM   #12
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Put a NACA duct in the hood, with a sponge filter (like the HKS) behind it. Metal tube going out to the tb. Use a piece of sheetmetal and some tin snips to make yourself a heat shield to keep warm air from entering the filter, and insulate it a little if possible.

If you do it right, you could have your intake be somewhat ram-air, and developed properly, it would not cut down on drag too much, so it would be aerodynamically friendly (look up the NACA duct, lots of Miatas use it for a ram air solution). Also, you could build your own metal airbox to help keep the air somewhat cooler, and if it was all done right, you would be getting fresher, cooler air, and not have to worry about all sorts of crap.


Think like this:
http://www.revlimiter.net/mods/duct.html
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Old 12-31-2008, 05:04 PM   #13
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Kentrik, I'm surprised nobody's gone twin NACA with those hood ports! The author in your link doesn't think it would work as well as a leading edge location (I think the Viper wore this well at one point), but with all the liberal ideas, I can't say that I've seen it come up.
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Old 01-01-2009, 12:10 AM   #14
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Eventually some punk-ass kid will..
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Old 01-07-2009, 11:28 AM   #15
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Quote:
Originally Posted by Blase View Post
So I was bored today, and I decided to fool around with my intake again.
.
.
.
Instead of a filter, I put some mesh at the inlet.

This is how it looks with the hood closed.



I was very surprised with the results when I took the car out for a ride. ... It might because the intake had no real filter on it, but I think the ram air effect really helps at WOT...
Quote:
Originally Posted by Blase View Post
This whole thing was done just for fun, not even to be a temporary intake nor a permanent set-up. I wouldn't drive around with a filter-less intake sticking out of my damn hood...
In defense of 96SubyImpreza, I think pessimistic is exactly the correct word. He/she was talkin about the negative side of your mods, without talking about the positives.

You shot yourself in the foot and lost any credibility as far as the results of the test drive when you said, "I wouldn't drive around with a filter-less intake..." after saying you did and loved the results. You're contradicting yourself, which makes it hard for me, if nobody else, to believe that the results from the initial test had any validity at all.

But as 96 said, you're creative!
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Old 01-08-2009, 02:39 AM   #16
1WRX0003
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well if that's what you call fun, dunno
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Old 01-08-2009, 11:17 AM   #17
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dont do a ram air intake, especially if you have a maf! trust me. i knows. i even made a thread about it.
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Old 01-10-2009, 12:02 AM   #18
tdhardy
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Cool

Has anyone tried to mount the MAF directly to the throttle body? I'd like to do that and fabricate an airbox from aluminum that has a bottom lower than the intake, with a drain for water. Seal it to the center hood scoop when the hood is closed and utilize it for something besides looks.
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