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Old 09-25-2000, 04:45 PM   #1
Fido
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Post Questions about stock intake, airflow and such, please read.

I should be recieving Larry's intake in a few days, and out of curiosity- Just what the hell am I removing . I was poking around the stock intake, seeing how small the intake area is, etc. What the hell are all those black boxy pieces? Hope those aren't essential :P I've noticed that on the passenger side fender, near where the new intake would be plugged into there's a second hole, covered by a plastic piece that appears to just be in there by tabs which can be removed. Should I also remove this to allow more airflow into and through the fender? From what little I understand about airflow, I think it could be a good idea (but then again, I understand little). Also, should I space the hood vents a bit? I notice that they already have a little hole in them (just a screw hole that lets water drain), but I think that doing the vent spacer mod would also be beneficial. What say all you mod gurus? This intake is my first real foray into the modification world (re-aiming my fog lights and putting in a K&N filter doesn't count :P), so this is a learning experience for me. Thanks
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Old 09-25-2000, 04:49 PM   #2
Subie Gal
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Wink

all that plastic garbage will come out...



Do a search in the technical forum and see if older threads there can answer your questions. Most of this has been covered previously.

Swapping the intake is fairly simple - you'll see once you get into it.

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Old 09-25-2000, 04:59 PM   #3
Subi Chicky
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Very basic:
#1- Disconnect the battery(so your ECU doesnt flip)
#2 - Take out all the plastic stuff ALL of it.
#3- make sure you have two round clamps (o-rings like plumbing clamps, probably came with your intake) around each yellow piece like in Subie Gal's pic...my pics coming soon....I personally removed the hood scoop cover but not the side vents, too much crap can get through those..


[This message has been edited by Subi Chick (edited September 25, 2000).]
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Old 09-25-2000, 05:03 PM   #4
Fido
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I did a search of the tech forums for a bit, but so far am learning not much ...Though now I am worried about running rich/lean. I understand how to do all that stuff, ecu reset and such. I'm just curious as to what the hell all that black crap that I took out is, and should I remove that other cover in the fender, and is venting a part of my hood a good idea. I don't plan to open those vents up all the way, just put some washers in it so there's a small amount of airspace for air to flow in and out of. The only thing that should be able to get through besides air is water, which goes through anyways.
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Old 09-25-2000, 05:45 PM   #5
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Fido, with larrys intake you dont need to take out the vent covers, unless drag, cause they cause restrictions, and maybe youll gain a tenth, but other will leave them closed unless you like a dirty engine, also all that black crap is basically, I beleive, jus intake silencers and maybe a water catch can or somehting to that affect, I personally would leave that other hole closed, because you will let hot air into the fender, defeating the purose of larry's intake wich is to suck cool are from out side the engine compartment. Also with Larrys intake I dont think you should have a problem with running rich because your keeping the stock air box, all you really doing is removing all that silencing crap.

Just my opinons, anyone feel free to shoo them down, hehe

any other q's? ill try to help.

Jay McDade
MY00 BRP RS coupe.
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Old 09-25-2000, 07:49 PM   #6
Fido
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Thanks...I figured it could be silencers of sorts.
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Old 09-25-2000, 09:09 PM   #7
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NO NO NO NO NO!!

Don't take out everything! You connect the cold-air tube to the stock airbox. I have directions included with the intake that will explain what to remove. See pix below, showing airbox still there. A copy of the instructions is available at www.imprezars.com/images/install.pdf

Also, leave the black plastic cover in the "large inner fender hole" in place, and remove the orange vent in the right front bumper for more cold air flow into the fender.

Leave the little "insignificant" holes in the inner fender alone (don't plug them), as they allow the air to flow from the front bumper into the inner fender and then into the engine compartment, where removing the big plate might let warm air into the inner fender too.

Do place vent spacers like those NickCat sells here, as they will help keep the intake cool, as well as remove the scoop blocking plate completely. The engine does NOT get dirty with it open - the airbox stays clean and cool this way. Mine has been open for months. This is really a must if you plan to autocross or drag race/road race.

The extra joint in the middle of your intake is gone, and yours will be one solid piece of aluminum tubing.



Larry www.ImprezaRS.com

[This message has been edited by ImprezaRS dot com (edited September 26, 2000).]
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Old 09-26-2000, 07:16 AM   #8
Subi Chicky
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ImprezaRS dot com, nice work, where did you get it??? My intake on my MY01 looks like Subie Gals, but it's blue. On mine, you did have to take out all the black PLASTIC garabage (not rubber just plastic).
As briefly as possible, this is how it went: I disconnected my battery. I took out the plastic things including my old air filter. I connected the yellow rubbery piece near the engine (2 clamps)and two small hoses provided by the intake's maker got attached to the engine. Next I made sure the intake was attached to the metal bracket the engine originally had its airbox attached to, sprayed my filter with K&N oil, clamped on the filter with 2 clamps also. Then I reattached my battery, cranked, started, and let idle for 20min or so. After that I removed the hood scoop cover. (I saved all the original pieces-parts.)
But Fido you would be wise to get the directions from the website...I am just sharing my experience.

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Old 09-26-2000, 08:03 AM   #9
Fido
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Well I meant all that black plastic crap connected the the snorkly thing Not the airbox itself, I know enough to leave that in there :P. Maybe I should get some wire mesh or something and fit it in the hood scoop just to prefent any large or otherwise annoying particulates from getting inside, but will still let air in?
I've heard all this stuff about creating hotspots in the engine, sucking air OUT of the engine, etc etc...I have no idea what to believe anymore And winter is coming up, do I really want everything open in the winter? brrrr!
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Old 09-26-2000, 08:54 AM   #10
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When I opened my hood scoop and vents, I noticed a significant difference in the oil temperature. I am going to close all of it back up after this weekends auto-x. In the cool weather my engine temp rises after a couple minutes of easy driving. The oil temp doesnt reach normal for about 10-15 minutes and even then its still not that hot.

Last week I was following my brother to an auto-x early in the morning. After idling at a gas station for 15 minutes the oil temperature was at a warm 70 degrees Celsius. We immediately got on the highway and the oil temp dropped to 60 degrees in about 2 miles!

[This message has been edited by BugBomb (edited September 26, 2000).]
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Old 09-26-2000, 10:36 PM   #11
ImprezaRS dot com
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Subie Chick,

Thanks. I make them myself and sell them off my web site!

Larry www.ImprezaRS.com

PS: for the winter, I plan to close the hood vents and scoop.

[This message has been edited by ImprezaRS dot com (edited September 26, 2000).]
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