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Old 04-10-2006, 10:44 PM   #1
gopsu
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Default Intake resonator removal mod... question

I took out elbow and left snorkel in place. Am I suppose to take both pieces out as snorkel can feed water into intake box? What's the proper way of doing this mod?
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Old 04-10-2006, 10:48 PM   #2
DeKaP
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Quote:
Originally Posted by gopsu
I took out elbow and left snorkel in place. Am I suppose to take both pieces out as snorkel can feed water into intake box? What's the proper way of doing this mod?
the elbow and snorkus your talking about is one piece last time i checked, and theres a bolt holding it down behind the fender, loosen that and take it out
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Old 04-10-2006, 10:49 PM   #3
blazin sti
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Do you have a short ram intake?if not you can take out the whole bladder in the fender and cut it up high and find a way to seal the hole i used another piece of plastic used some epoxy and it sealed pretty good ,or you can remove the bladder and buy a gp moto elbow instead of cutting the bladder.
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Old 04-10-2006, 10:54 PM   #4
MyloFMX
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what exactly does the intake silencer do when you take it out? just curious...
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Old 04-10-2006, 10:55 PM   #5
gopsu
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Quote:
Originally Posted by DeKaP
the elbow and snorkus your talking about is one piece last time i checked, and theres a bolt holding it down behind the fender, loosen that and take it out
Snorkus I am talking about is triangular plastic piece that feeds incoming air into the elbow and eventually to intake box.
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Old 04-10-2006, 10:59 PM   #6
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Quote:
Originally Posted by blazin sti
Do you have a short ram intake?if not you can take out the whole bladder in the fender and cut it up high and find a way to seal the hole i used another piece of plastic used some epoxy and it sealed pretty good ,or you can remove the bladder and buy a gp moto elbow instead of cutting the bladder.
No, I do not have a short ram intake. I took just elbow + bladder out while leaving snorkel back on. It should help feeding cold air into the fender wall. My concern is snorkel feeding water into side fender.
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Old 04-10-2006, 11:20 PM   #7
wrX-RTD
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by snorkel do you mean the 'ram-air' intake piece that leads into your fender well?
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Old 04-10-2006, 11:23 PM   #8
affinity1
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is there any cutting involved?
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Old 04-10-2006, 11:29 PM   #9
wrX-RTD
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Quote:
Originally Posted by affinity1
is there any cutting involved?
not for the silencer removal. its very straight-forward but getting the snorkel piece out of the fender can get a bit frustrating.

if i removed another silencer i would just remove the front passenger wheel. my fender liner looks like trash now as some of the plastic screws were old and cracked while pulling the liner off.
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Old 04-10-2006, 11:34 PM   #10
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Quote:
Originally Posted by wrX-RTD
by snorkel do you mean the 'ram-air' intake piece that leads into your fender well?
yes, it is.

I believe function of bladder is to keep water away from intake box... what would happen if elbow+bladder is removed? will ram air lead water into intake box?
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Old 04-10-2006, 11:37 PM   #11
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Quote:
Originally Posted by txl146
yes, it is.

I believe function of bladder is to keep water away from intake box... what would happen if elbow+bladder is removed? will ram air lead water into intake box?
i removed mine last week and was told to take out both pieces. got a part number for a fender plug from subaru. its actually for the 99-01 2.5RS but it fits the impreza like stock.

i would say remove both pieces and pick up the plug. ran me $4 at my local subaru dealership.

EDIT: with both pieces removed i wouldnt think there could be a problem. even with the ram-air piece still in, if water somehow got in it should go into your now empty fender well since you removed the large snorkel piece.
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Old 04-10-2006, 11:41 PM   #12
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I have a fender plug. However, hot air from engine bay can still move into stock intake box through gap between intake box and fender wall.
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Old 04-10-2006, 11:48 PM   #13
wrX-RTD
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wouldnt that gap be there regardless of the ram-air being removed or not? dont feel like walking outside and i cant remember for sure. =P

i think you are gonna get a little heatsink whether its there or not. if you have the plug im thinking you will be fine. lots of others have done the mod with no issues that ive heard of.
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Old 04-10-2006, 11:52 PM   #14
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Snorkel will snugly fit into stock air intake box, so hot air shouldn't go into stock intake box.
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Old 04-11-2006, 12:01 AM   #15
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is there a writeup somewhere that you guys used as reference?
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Old 04-11-2006, 12:05 AM   #16
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Old 04-11-2006, 12:12 AM   #17
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The purpose of the silencer box in the fenderwell is not so much a silencer but it is supposed to be a pressurized compartment that increases response in off on throttle application by maintaining a vacuum pressurized compartment. It also happens to reduce turbo noise. When I removed mine completely stock I noticed a decrease in response but a little bit more pull overall. Now I am stage II so it was pretty much only for the noise but an uppipe and downpipe give so much more turbo noise that the resonator was pretty much pointless to remove actually. I have the GP elbow and the stock funnel in because the location of the stock funnel is supposed to pull air from a high pressure pocket that forms between the hood and the front grill when you are driving.
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Old 04-11-2006, 12:18 AM   #18
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theicewall, shouldn't high pressure pocket pull in water into intake box? I though purpose of bladder was to also capture water away from going into intake box...?
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Old 04-12-2006, 06:30 PM   #19
crewin323
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How does the silencer mod affect air turbulance in the intake?
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Old 04-12-2006, 06:55 PM   #20
athakur999
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Quote:
Originally Posted by gopsu
I have a fender plug. However, hot air from engine bay can still move into stock intake box through gap between intake box and fender wall.
I picked up some foam insulating tape from Home Depot and put two layers of it around the hole in the intake box. It makes a pretty reasonable seat against the fender wall.

I'm planning on putting my silencer back in though. The sound was cool for a while but it's gotten annoying. I also feel like the engine is a little more "lumpy" now.
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Old 04-12-2006, 07:13 PM   #21
johnnyb
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You know how you can drive around in comfort when the weather is around 80 degrees without turning on the A/C? If you are pulling in hot air from the engine bay, you can kiss those days goodbye. Even on the coolest setting, the air comes into your car warm. No good. Keep the stock intake unless you have a FMIC.
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Old 04-12-2006, 08:39 PM   #22
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Actualy removing the snorkus it draws cold air from the fender as there are small openings in the fenderwall that allow it to get colder air, regadless its everyones opinion on the efficiency but what has been proven that the removing it increases spool up by reducing turbulance in the path the air has to take to reach the turbo....I can't remember where I read this...
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Old 04-13-2006, 12:35 PM   #23
theicewall
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Quote:
Originally Posted by xplane
Actualy removing the snorkus it draws cold air from the fender as there are small openings in the fenderwall that allow it to get colder air, regadless its everyones opinion on the efficiency but what has been proven that the removing it increases spool up by reducing turbulance in the path the air has to take to reach the turbo....I can't remember where I read this...
That's never been proven by anyone. And the air in your fenderwell is semirestricted by the fact that your fenderwell is a closed space and the air funnel that came on the car draws fresh air from the front grill. If you want to get rid of anything get rid of the silencer box but keep the U-turn in your fender and keep the funnel.

Drawing air straight from your fender without it is more likely to cause turbulence hence why acceleration is often a bit studdering... airflow is studdering. Having air flow through a tube that funnels gradually is a less abrupt transition from open space to small space. That's why the WRC 32mm restrictor isnt just a hole, its a funnel that gradually becomes smaller and then gradually becomes larger. If you are going to do this mod, either buy the gpMoto elbow, or hack up your snorkus to look like it but keep everything else the same. Intake mods are a waste of time and money on our cars. Some people like the typhoon intake but those seem to be STi people with custom tunes for them. Get an uppipe if you want better spool and woosh noise. Get a downpipe if you want a huge power increase. End of story.
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