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Old 08-08-2005, 08:13 PM   #1
SoPoSubi
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gone 02 SVT Focus
02 WRX Wagon slvr/sold

Default Another reason why the WRX wagon the best.

Today I installed an intercooler sprayer system in half an hour for $10.00.

Thanks to the rear window washer pump the install was a snap.
Just a twist of the wash stick and I have a nice chilled intercooler.
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Old 08-08-2005, 09:38 PM   #2
SBW
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yes I agree, there are moments when I want to smash my sedan.

stupid salesmen fooled me!! ::raises fist at sky::

no, but really, it is convenient to have another pump.
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Old 08-08-2005, 09:42 PM   #3
SilverSubaab
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Details and pics? I would love to try this.
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Old 08-08-2005, 09:47 PM   #4
Vr-4Ben
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yes please details and pics cause I insist on doing this!!!!!!!!!!!!!!!!!!
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Old 08-08-2005, 09:58 PM   #5
ScoobyNubieToo!
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Tell us more...or is this just another D.T. ?
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Old 08-08-2005, 10:03 PM   #6
deegan42
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yes details please!!! i want to do this!!
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Old 08-08-2005, 10:05 PM   #7
bren wrx
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doesnt your wiper go when you turn the wash stick lolol owned.
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Old 08-08-2005, 10:38 PM   #8
veightkiller
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yeah it does but you can always disconnect it..PWNS-u
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Old 08-08-2005, 10:44 PM   #9
SoPoSubi
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Check out the link in the the exterior modification section, then click on the DIY thread, Then on the Intercooler. Or cut and paste

http://wrx.spankaveli.com/icspray.pdf

Since wagons already have the second washer motor, all you have to do is unplug the wiper motor in the rear hatch cover and rig up the sprayer nozzles.

I bought my wiper hose at Napa along with the Y-fittings, and the nozzles at Walmart in the Garden section. Just like the diy thread suggests.

You will have to take the water tank HALF way out to access the washer motor barb on the bottom of the tank. I did not do any disconnecting of the wiring, I managed to jam my hand under the take to take off the rear hose and slip on the new hose.

I opted to put 2 nozzles on either side of the intercooler, spaying accross. I didn't want to put a spayer on the rear of the cooler gasket because I didn't want a bunch of water to spray out of the scoop and onto the hood. Having a bunch of water spraying out of your scoop at a intersection would look pretty retarded.

Also on the spay nozzles, I took off the flow regultor and put a small screw into each of the nozzles on the side. This makes if easy to keep the nozzles flush with the scoop gasket.

Probly the best 10 bucks I have spent.
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Old 08-08-2005, 11:12 PM   #10
jsalassi
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how does this help....feel free to flame. Any significant performance increase?
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Old 08-12-2005, 11:07 PM   #11
makofoto
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IC is basically a heat sink ... if you can cool it ... say after an autocross run ... it can absorb more heat out of your air charge ... allowing more fuel to be added = more power.

I have the wagon IC sprayer mod ... works great on my SM WRX Wgn!



spray look anemic in this photo ... but it instantly covers the entire IC


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Old 08-12-2005, 11:25 PM   #12
scooterforever
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You can do the same thing with the WRX sedan, though you need to pick up a rear washer motor from a junked wagon (e.g., car-part.com, junkyard, etc.) or ideally the entire wagon washer bottle and motors. The sedan maintains the wagon wiring, including the wiring harness for the rear wagon washer motor. The negative lead for this motor is a blue and black wire IIRC and terminates through the firewall in the steering column. Scoobymods.com has the details. Basically you don't have to string any wires through the firewall, and you don't loose any function with the rear wiper ('cause the sedan aint got one to start).
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Old 08-13-2005, 01:24 AM   #13
Vr-4Ben
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Lets see its 12:30am and I just got done installing the IC sparyer on my 02 wagon took about 30mins to figure out thanks to your pics!!! Can't wait to test it out tomorrow!!
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Old 08-13-2005, 01:19 PM   #14
JonR
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Did the same thing with my sedan...bought a pump, added it to the reservoir in the wagon stock location, used the STI IC spray switch. Looks nice, works well. The hardest thing for me was finding connectors for the back of the switch to wire it in!
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Old 08-13-2005, 01:31 PM   #15
scooterforever
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Quote:
Originally Posted by JonR
The hardest thing for me was finding connectors for the back of the switch to wire it in!
Yeah, that was a huge PITA. Tried soldering, using crushed big connectors... finally tracked some down at Radio Shack I think.
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Old 09-19-2005, 10:40 AM   #16
smeghead
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Just finished mine - thanks for the tip.
So far im just branching off my single main line, I will pick up a washer motor from some other car and hook it up to a switch this weekend. In the meantime this will do.
I dont know if it makes any difference but its a nice cheap gimic
[IMG]
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Old 09-19-2005, 11:23 AM   #17
makofoto
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For something like $15 ... one can buy this vinyl water reservoir bag that has a motor attached designed for older american cars ... that is easy to hook up electrically and can be hung anywhere in the motor compartment ... it's narrow. My friend has it hung in front of the battery. JC Whitney sells them ...

http://www.jcwhitney.com/autoparts/S...-10114/s-10101

hmmm ... I don't see it, the bag model listed ... they have other ones washer sprayer kits ... but perhaps they have it listed in their catalog ... or you can ask them about the vinyl bag version ...
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Old 09-19-2005, 11:36 AM   #18
Crashman287
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Hang on. If this sprayer is coming from the rear window pump, aren't you spraying your intercooler with window washer fluid? Or is there a seperate reservoir for the rear window fluid?
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Old 09-19-2005, 11:54 AM   #19
makofoto
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Window washer fluid is good ... detergent helps with breaking surface tension thus even better flow of water over the IC ... alcohol helps with faster evaporation and cooling. I do try to use distilled water when I can ... but after 18 months of doing this ... my IC is cleaner then ever!
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Old 09-19-2005, 01:18 PM   #20
battlewagon
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^
now that's some good info makofoto.
I never tried this because of the fear of spraying washer fluid on the IC. It's good to hear your experience has been good so far.
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Old 09-19-2005, 01:35 PM   #21
smeghead
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What about RainX? same?
Because mines mostly full of RainX!!!

Also another newb question: All washer motors should be the same right? I mean I can grab any old washer pump from any import car, doesnt have to be a Subaru im guessing?
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Old 09-19-2005, 01:37 PM   #22
ride5000
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Quote:
Originally Posted by battlewagon
^
now that's some good info makofoto.
I never tried this because of the fear of spraying washer fluid on the IC. It's good to hear your experience has been good so far.
c'mon think about it.

rain, snow, sleet, sand, dust, rocks, mud, salt, birds, insects, etc go into the scoop and through the IC.



ken, spraying ic for 2 years.
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Old 09-19-2005, 01:57 PM   #23
jacobsen1_
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What performance gain have any of you seen in standard driving, IE non auto X or track, but just on the highway?
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Old 09-19-2005, 02:10 PM   #24
ride5000
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probably ~5hp. just on the limit of detectability. i notice slightly higher MAFv in utec logs when it's on vs. off. ie, i hit 4.4v at 5600 rather than 5750 rpms.
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Old 09-19-2005, 02:34 PM   #25
makofoto
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Why would you use it on the hwy ... the ic and hoodscoop is designed to take care of normal cooling as long as you are moving. STI's have larger IC's, hood scoops and sprayers because it's more of a sports car ... and it's assumed you will do more performance driving ... as compared to the "average" WRX owner.

Extra cooling for the IC is required or desirable when the engine is being asked to do extra work ... at the end of a AX run ... the IC will be burning hot ... ie. air won't be cooled, less dense air has less oxygen ... which means the ECU can't add as much fuel, ie. less power.

If you can cool the IC down ... preferable below ambient temperature (with the cooling effect of water evaporation) ... the IC has the potential, as a heat sink, to absorb more heat from the turbo compressed air ... creating denser oxygen air that can use more fuel to maintain the proper air/fuel mixture.

In AX'ing you aren't allowed to drip liquids on the course ... so really you aren't allowed to use your IC sprayer while running, which would give the greatest benefit ... although some cars, EVO's have automatic spraying systems, which, as long as they aren't creating a nuisance or safety issue ... are allowed to work, since they are oem.

The IC sprayer is nice to have in everyday driving, if your IC has experienced heat soak ... say at a stop light.

You notice how much more powerful your car feels when it's cool outside ... that's what the IC attempts to duplicate ... the IC sprayer gives you added control.
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