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Old 05-29-2000, 11:48 AM   #1
SoCalScooby
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Lightbulb Custom Designs: Ram Air/Cold Air Intakes

For all of you out there that are like me, I like the idea of a custom ram air or cold air intake. The only problem is, I haven't found a REAL GREAT idea for one yet. For all of you out there that have thought of good ideas, or have made your ideas become reality, I ask you to share your thoughts. If you could supply a picture(s) or describe it to me (others) that'd be great.

I was hoping I could make one that would use the hood scoop, so I could say it actually does something. But the only problem is, I don't know how to get around the water factor. I looked a a Camaro SS because they have a hood scoop, and I saw how theirs work. I still want to go look at a Trans Am because those have ram air. Any ways, lets spill our ideas on this post. Thanks-

~Eric
MY00 Ridge Blue RS
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Old 05-29-2000, 10:57 PM   #2
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Look at the "cool air" intake on the "mymods" page at www.ImprezaRS.com - the second version is very professional looking, and works great with an AMSOIL foam filter.

There are no issues with rain, and it get's cool air from the inner fender, which get's a fresh supply from the little orange vent near the fog light up front.

In addition to good looks and ease of instalation (my bird could do it), the biggest difference between version one and version two (in terms of power gains) was acceleration from 75 - 125 mph. The 0 - 75 in the first three gears was only a little better.

Combined with a good exhaust, the gains are quite nice.

There is a guy in SPCR who built a "ram air" setup with the hood scoop and hole in the stock airbox. His directions in an email to me were too confusing, but you can write him at either soob2k@iwon.com or balonzo@Exchange.FULLERTON.EDU

Larry
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Old 05-30-2000, 12:23 AM   #3
Keith
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You know what I was thinking...This is JUST An Idea for now. I dont know how to do any kind of plastic work so I would love to see if someone can do this or just add to it but....
I dont know if you have seen the WRC impreza but it actually uses those hood vents that we have. What I was thinking was this...
opening both hood vents and the hood scoop. Now if there was room, once those are open make some kind of pipe from both hood vents and the hood scoop and running them into a little plastic box thing (with an open bottom to give the water a place to escape) behind the intake manifold (sp)). HAve all three pipes,tubing,whatever, meet into one big hole that faces upwards in the box. Place the hole where the air enters the box, under a k&n air filter, this way when water enters it doesnt go up into the intake. Being that water is heavier than air, you should have the water fall as the air enters the airbox thing.
What do u guys think about this?? I hope its understandable, but being that I am tired and have the english skills of a 2 yr old, I'm not sure Neway, tell me what u think.
Keith
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Old 05-30-2000, 06:25 AM   #4
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Keith-

That is a good idea, IMO. You may have to bring two pipes, one from each side of the hood scoop. That way you can make them drain water a little easier. There is definateky enough room on the passengers side of the engine, but I doubt there is enough room on the drives side. When I took off the covers for the vents, my battery is no more than 2 inches below the hood. If you can get this to work, I wanna see. Here is my ram air system.

Let me know how it goes...

Jim
00 RS Sedan Silver
 
Old 05-30-2000, 11:41 AM   #5
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Impreza Rider,

I liked your intake enough to feature a link to it on my homepage for the past couple of weeks. Much more expensive than my cold air intake (version 2) though...

I'd still be concerned about water not draining through the little hole in the upside-down snorkle you mated to the underside of the MRT racing scoop.

Larry
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Old 05-30-2000, 12:26 PM   #6
RallyGuy2k
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I still have this idea of using the stock 2k air box / plenum and sealing the pipe on the left side...then cut a hole on the top on the box inline with the hood scoop. Then *maybe* use rubber door seals to create a semi-seal between the hood and intake.
Along with a drop-in filter like K&N or Amsoil this would be a great set up for not alot of $$$ and it would be true ram air and it would not matter at *all* what the engine bay temp is since the air is taken from outside directly into the throttle body.
This brings me to the rain issue. When I get some time I'll take a look at the Comaro SS or Trans Am WS6. Both these cars have been running a very simple system like this for the past several years and have had no problems. I think we could do it...
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Old 05-30-2000, 03:06 PM   #7
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ImprezaRS-

First off, thanks for including a link to my site...

I also thought that I would have a problem with the water situation. So far it has rained hard twice here. I had very little water past the drain hole, and none at all inside the air box. I think the way the scoop is mounted, where the air has to go up and back, helps keep some water out. That way the drain hole does not have to work as hard. Something else that I did, which you can't see from the pictures is, was put some glue on the screen around the hole for the scoop underneath the hood. That way water actually has to go in the hole, it can't just run off into there. Too bad there's not a way that you could actually see it...

Rally Guy-

I checked out a Camaro SS when I was researching for my intake. The way their system works is the scoop is in the middle of the hood. Then there are air ducts which direct it down to the front of the hood. Then there is just a ole in the hood where the air comes out of the hood and into the air intake. When I was talking to the mechanic at the dealer (while my dads Suburban was getting worked on), he said that you could put ram air on ANY LT1 Camaro by just buying the SS hood. It's really simple system... The only problem with the way you want to do it is that there is no where for the water to go except into the air filter and into the engine...even if you drill a few holes in the bottom of the air box.

Jim
00 RS Sedan Silver

[This message has been edited by Impeza Rider (edited May 30, 2000).]
 
Old 05-30-2000, 04:22 PM   #8
RallyGuy2k
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QUOTE:
"The only problem with the way you want to do it is that there is no where for the water to go except into the air filter and into the engine...even if you drill a few holes in the bottom of the air box."

Jim,
Yeah...that's the stumbling block. If holes were drilled in the plentum and since the intake and filter are pulling air from the same side as the water coming in and not directly going into the filter, I wonder how much water would actually get in.
I remember that a friend of mine's dad works for Wolverine boots and they are using a material that air easily flows through but blocks water. That was years ago. I played with a bit if it and it was a very soft material that air passed through it easily yet truely was water proof. That's how their boots are cooler than their competition yet still is water proof. HHhhmmmm...wonder if that could be an answer. Wonder how it reacts to heat...just a though...
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Old 05-30-2000, 06:51 PM   #9
Peaty
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http://www.azscooby.freeservers.com/

There are pics there and info on where to get parts for my cold air intake I made myself. Also, there is some data on temps under the hood that I recorded w/ and XL file with the data graphed out.

Peaty
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Old 05-30-2000, 07:23 PM   #10
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AZSCOOBY,

Unless you seal off the intake to the right inner fender, I wouldn't call that a "cold air intake".

Larry
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Old 05-31-2000, 11:42 AM   #11
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RallyGuy-

When I did my ram air intake, I also wanted something that could block water better than just a draining hole. I was thinking some type of foam. But the questions that came to my mind were:

1. Would the foam cancel out any gains from the ram air? Since the air would get slowed down by the foam...

2. Would the foam soak up a lot of water and effectivly block off the air flow to the engine?

I also didn't have any access to really good foam like they use in the boots and things like that though... Oh yeah, I used "foam" as a generic term for the material you're talking about...I don't know what it's called.

Jim
00 RS Sedan Silver
 
 

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