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Old 12-27-2001, 03:48 PM   #1
In2Deep
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Default WRC intake system

It's no secret that the Subaru WRC car uses the production models intercooler location as an air intake. I was just wondering if anyone was in the process of developing a system like it for the masses whom choose to go with front mounted intercooler set-ups. It would seem as if this particular system would work vastly better than CAI set-ups that draw air fron the fender-well.

Any thoughts?
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Old 12-27-2001, 03:59 PM   #2
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i thought the wrc had the front-mount intercooler and the sti oil cooler was up under the hood scoop....guess i was incorrect on that one.



an air intake system from the hoodscoop would be cool, although, i think it would be rather difficul to pull off - the wrc has the entire engine turned around in the car, just for reasons like this, and the reduced amount of piping for a front mount intercooler.....but the 2.5rs could easily do it, even the short ram intakes sit right behind the hood scoop.
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Old 12-27-2001, 04:00 PM   #3
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Looks like a different intake manifold, not the entire engine turned around...

-jb
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Old 12-27-2001, 04:20 PM   #4
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if you think water is an issue now...wait until that comes...
granted subaru has already delt with this...how...I have no idea...

but water shooting in your hoodscoop at 70 mph is going to have some effect. At least you only have to be concerned right now about puddles...

would need some bizzare filtering done...
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Old 12-27-2001, 04:31 PM   #5
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jimb is correct, it is just the intake manifold that is "flipped"...

I dont think that it would be too hard to make a set up that takes the air from the scoop, it just depends on where exactly all of the FMIC pipes end up...
you just would have to figure out a way to filter out rain water, so the engine doesnt ingest it...

but, anything is possible. how much money you got?
(actually tho, this wouldnt be that expensive.)
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Old 12-27-2001, 04:39 PM   #6
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aem bypass valve for the water issue. i imagine there wont be as much a mass of water water going in at one time, than there was in that nsx fish tank test from scc.
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Old 12-27-2001, 11:23 PM   #7
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Quote:
Originally posted by p7r4e7y
aem bypass valve for the water issue. i imagine there wont be as much a mass of water water going in at one time, than there was in that nsx fish tank test from scc.
AEM bypas valve doesnt do JACk to stop puddle amounts of water... only full immersion... thats why it's a piece of crap
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Old 12-27-2001, 11:53 PM   #8
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actually if your intake was only subjected to a large splash, or puddle amount as you say, then no water would make it up the intake tract, as there wouldnt be enough suction to pull it up. the only reason any water ever makes it up there is that when the filter is fully submerged the vacuum of the motor IS strong enough to pull that weight of water up the intake because there is no air with it.
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Old 12-28-2001, 06:08 AM   #9
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As far as the WRC intake is concerned, it would be a bit difficult to replicate for the simple reason that the WRC Impreza's turbo is mounted laying on it's side, thus, the inlet is pointing straight up into the intake, not similar to ours which points to the front of the car.

Also, where's the MAF sensor going to go with such little room to work with. More trouble then it's worth.

Last edited by Shik; 01-03-2002 at 07:33 AM.
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Old 12-28-2001, 12:09 PM   #10
mhj
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I've always wondered about the WRC setup.....doesn't the hot air coming out from the radiator and IC just get sucked into the intake?

A little water in your engine is not bad as long as you let it dry before shutting off the car. Remember, these cars already have water injection to cool off those combustion chambers. For high boost, water is your friend.

In this case, the water would have to make its way into the filter, down the IC tube , through the IC, up and through the turbo, and up into the intake before getting into the TB. Hopefully, it'd be sufficiently atomized by then.
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Old 01-02-2002, 05:08 AM   #11
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anybody have anymore pics of the wrc engine/ic and radiator setup. because it has confused me to what part opf the bumper the ic is in and also the intake talk has intrigued (sp?) me to look at the wrc engine a bit better.

Shawn
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Old 01-02-2002, 02:21 PM   #12
In2Deep
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Shawn, those types of pics aren't easy to come by for some reason. I'd like to see more myself. This one is straight from the SWRT's website.
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Old 01-02-2002, 04:57 PM   #13
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subie gal posted some pictures a while back from Rally GB. There were some nice close-ups of the engine bay.

I think she said the hood scoop is closed. This might be so that hot air that has passed through the IC and radiator get sucked into the air intake. Not sure. Seems like the two hoses connected to the vents in the head lights would not supply enough air, so maybe they take air from the engine bay... ??

-anders
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Old 01-02-2002, 08:22 PM   #14
In2Deep
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Anyone have a link to those pics?
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