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Intercooler Spray Switch

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Old Mar 25, 2003 | 12:52 PM
  #31  
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From: Austin, TX
Originally posted by hel_if_ino
if you new evo 8 owners took the time to read the manual.. :P you would have read that the intercooler spray is in fact winshield wiper spray and does come from the same tank. For the manual mode, you have to hold the button down, but not for longer than 60 secs. otherwise you will burn out the motor
I read my manual (about 2 weeks ago) and if I remember correctly it doesn't come from the same tank. The washer fluid bottle is in the trunk. That's for the front and rear wipers. The intercooler spray bottle is located under the hood. I believe the logos on the tanks/lids should match the logos on the switch/lever.
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Old Mar 25, 2003 | 01:01 PM
  #32  
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From: summerland
Hold the manual button down ?

really what the hell ? steer / row through gears / and hold the ic spray switch down ? I'd like to see that

I don't have my EVO yet but I really thought manual was an on off kinda thing. more sprays etc
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Old Mar 25, 2003 | 01:06 PM
  #33  
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From: MO
Has anyone ran a 1/4 mile with it on and with it off. And with manual and auto. How big of difference does it make.
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Old Mar 25, 2003 | 03:12 PM
  #34  
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From: Between the Blue and the Sand
Originally posted by hel_if_ino
if you new evo 8 owners took the time to read the manual.. :P you would have read that the intercooler spray is in fact winshield wiper spray and does come from the same tank. For the manual mode, you have to hold the button down, but not for longer than 60 secs. otherwise you will burn out the motor
And if you had reading comprehension skills... you would have noticed that the bottle used for the IC sprayers (under hood) is seperate from the washer fluid bottle (in trunk). And that the only thing that is common about them is the fact that you fill them both with windshield washer fluid.

SC~
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Old Mar 25, 2003 | 03:28 PM
  #35  
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From: DEEP Valley O'side
okay............"I actually read the manual Thoroughly." and yes, I have a brand new evo 8. The tank for the intercooler spray is Located In the TRUNK on the right hand side. The MAIN purpose for the intercooler spray is to cool the turbo and intake system when the engine is reving High. Mainly going UP HILL or on looooong extended times the needle stays in high rpm's and yes it does make a big *** difference in hp and torque output because NO **** it cools your engine down a great deal and helps the MO FO breathe. And yes it does actually give it a lil extra boost when held down for more than 5sec in manual.
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Old Mar 25, 2003 | 04:14 PM
  #36  
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Can someone post a picture of the pump that controls the intercooler water spray? I'm going to be adding a similar system to my own car. The pumps I am looking at, however, cost around $60, and run at a pretty high pressure. So long as the pump that Mitsu uses on the Evo isn't just a windshield washer pump (which I doubt), I might just have another option.
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Old Mar 25, 2003 | 04:35 PM
  #37  
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From: Austin, TX
The purpose of the intercooler spray is to cool the intercooler. Hence the name intercooler spray. By spraying warm water (washer fluid, whatever) on a hot IC you transfer heat from the IC to the water, cooling the IC down allowing it to cool the intake charge better.

Water has great thermal conductivity, that's why you can run a hot pan under running water and cool it down a lot faster than blasting it with a fan. Similarly, that's why you'd spray the hot metal IC with water.

I don't think there's any way or reason for the IC spray to also hit the turbo and intake. The intake is already taking in ambient temperature air, and the turbo would be wayyyy to hot to warrant spraying. Plus, the spray nozzles are in front of the IC, so it's kind of hard for that water to get anywhere but onto the IC.

As far as bottle location, can someone just go out and look in the darn car? Mine's down in the parking garage right now... kinda far, otherwise I'd check mine. But I know there is a bottle in the back, but I could swear it was for wipers only. I thought the IC spray bottle was up front.
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Old Mar 25, 2003 | 04:46 PM
  #38  
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From: Kansas City, MO
The IC spray bottle is in the front. On the driver side of the engine bay, in the front (near the front bumper).

The windshield washer fluid resivour is in the trunk. On the passengers side, behind a cheap snap-in panel. It feeds the rear wiper sprayer and the front wiper sprayers as well.
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Old Mar 25, 2003 | 07:18 PM
  #39  
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The real question I have is - how long is the reservoir good for in auto mode. In addition, I wonder if anybody has managed to rig a warning mechanism for when it runs low.

I don't particularly care if my wipers run out of fluid, but I DO care very much if my pump burns out because the auto mode has been dry pumping for half an hour...

-Josh
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Old Mar 25, 2003 | 11:07 PM
  #40  
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the IC spary is definitely under the hood.. I point it out to people every time i pop the hood for them.. plud I've checked the level since im paranoid it will go dry and burn out the pump. the manual didnt say it woudl spray for 3 seconds every 2 seconds or anything, it said it will spray when it's appropriate. i checked this by having the car in idle sitting in a lot, and hitting auto spray... nothing happened, i couldnt hear the pump, which i can hear when i hit manual, when the car is under boost, i can't exactly hear the pump, so until i can get someone to run alongside and look, or to ride the hood and look, i'll just have to assume it will sparay only under hard boost.
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Old Mar 25, 2003 | 11:28 PM
  #41  
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Originally posted by Sano
Has anyone ran a 1/4 mile with it on and with it off. And with manual and auto. How big of difference does it make.
I've tried it with and without, and there was a slight improvement, but it definitely had more to do with my inconsistent launches than any effectiveness of the IC spray.
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Old Mar 26, 2003 | 11:20 PM
  #42  
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From: FT.LAUDERDALE FL
Originally posted by Gary Clark


On my V it uses the same tank as the washers.

One question, it does not seem to be an intercooler spray, as the nozzels fire into the airflow path that misses the intercooler and enters the radiator (or are their more nozzels I have not seen).

My V also seems to have no auto mode, just a switch on the center consol. Is this normal, when I got the car, the spray did not work as some additional none standard wiring had been removed and one lead to the switch was disconnected. I am wondering now if the previous owner had and auto system that he had removed.
Obviously when you are driving the force of the wind against the front of the car will push the air straight into the intercooler ,so if it were pointed at the intercooler lets say at the bottom at speed it would stay at the bottom so to cool the whole face of the intercooler while driving it needs to be sprayed straight up .
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Old Mar 27, 2003 | 12:42 AM
  #43  
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From: FT.LAUDERDALE FL
i think if know one knows somebody can just go out and trace the line.But not actually seeing the setup i would guess that knowing that they are two water tanks the rear tank would be for the front and rear wipers since there will be water lines running the full length of the car anyway what difference does it if the tank is in the back of the car (example my civic si with front and rear wipers).so the front tank might be for the ic spayer since when on auto and the silenoid reacts the closer the tank is to the ic sprayer the more likely it is to squirt water rather than air for its spaying increments.
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Old Mar 30, 2003 | 08:49 PM
  #44  
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From: St.Louis area
Originally posted by nynguah
The real question I have is - how long is the reservoir good for in auto mode. In addition, I wonder if anybody has managed to rig a warning mechanism for when it runs low.

I don't particularly care if my wipers run out of fluid, but I DO care very much if my pump burns out because the auto mode has been dry pumping for half an hour...

-Josh
I remember the manual saying there is a low coolant warning indicator lamp for the IC Mister reservoir.
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Old Apr 2, 2003 | 06:21 PM
  #45  
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From: Bay Area, California
Originally posted by nynguah
The real question I have is - how long is the reservoir good for in auto mode. In addition, I wonder if anybody has managed to rig a warning mechanism for when it runs low.
Exactly. How often should we check and refill the reservoir if we set that to auto mode, and in fact, is that really necessary (or advised) to set to auto mode all the time? Is it is only useful during the track days or hot summer days??
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