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Performance Modifications for the NG900 / Old 9-3 This forum contains PERFORMANCE related Q&A's for the NG900 and 9-3. This may also include suspension.

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Old 06-20-2009, 09:37 PM   #1
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IC sprayer

Has anyone ever re-routed the rear windsheild washer to the IC and made a sprayer? Is this the same pump the front is connected to? Also, does anyone know if there would be a way to maybe re-route the headlamp washers to an IC sprayer? Any information on the pump would be great!
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Old 06-20-2009, 10:33 PM   #2
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the rear sprayer is a different pump. not worth the hassel to re-route.

just buy a spare pump and sprayer from older Miatas (i think) and wire it up to a seperate switch. or hook up some Co2 from paintball and use that....
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Old 06-21-2009, 05:32 AM   #3
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Just buy a bigger intercooler. May be pricy, but in the long run, its a better option
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Old 06-21-2009, 05:39 AM   #4
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or do both... also a bigger IC isn't too pricey just go on ebay...
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Old 06-21-2009, 06:22 AM   #5
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Or you could do a crude water injection system for about the same amount of money.
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Old 06-21-2009, 06:24 AM   #6
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Quote:
Originally Posted by Baz View Post
Just buy a bigger intercooler. May be pricy, but in the long run, its a better option
best advice!
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Old 06-21-2009, 06:58 AM   #7
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Doesn't the pump depend on what year the car is as my viggen has one pump which works in reverse when you want to spray the rear wind shield?
Like stated, get a bigger IC; don't waste your time on an IC sprayer unless you get a high pressure pump, even then you will see minimal gains. Don't waste your money on a co2 one as well, and if ya want WI, spend the money on a snow/aquamist, etc and have your ecu mapped to it.
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Old 06-21-2009, 07:26 AM   #8
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If you're really intent on doing this, here's how I did it once upon a time: http://griffingear.helixgfx.com/ggtip_icmist.htm

I saw intake temperatures that were maybe three degrees lower with spray than without. And that was only when drenching the IC pretty well before the run.

I pulled that homemade system out, bought a bigger IC, and haven't looked back. That's where your time and money will be best spent.

Also, Ims is correct. The rear sprayer uses the same pump as the front sprayers; it just spins in reverse to route the washer fluid through a different nozzle.
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Old 06-25-2009, 08:51 PM   #9
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Any body experiance with nos intercooler spraying? I hear it does some good results
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Old 06-25-2009, 09:34 PM   #10
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I hear your money is still better-spent on a larger IC.
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Old 06-26-2009, 02:38 AM   #11
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Jdinneen did it to his NG.
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Last edited by rafal; 06-26-2009 at 09:11 AM.
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Old 06-26-2009, 06:23 AM   #12
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How did it work out?
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Old 06-26-2009, 12:11 PM   #13
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it took me 2 seconds to move the otherwise useless headlight sprayers to the lip in front of the IC. I saw minor but positive results when using a method outlined in an autospeed article. spray before you do a pull as water is a better heat absorber than metal. no replacement for a good IC of course.
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Old 06-26-2009, 12:18 PM   #14
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I tried this and even used methonal and tested it on the dyno with 0 results on the dyno, lost the same amount of hp per pull, about 7whp each run with or without water or methonal. I gave up on that idea and that is when I sprayed the w/m straight into my intake

That showed a 39wtrq gain with no sw changes

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Old 06-26-2009, 12:22 PM   #15
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I think it's pretty important to have the water going on the IC to be a mist, not just a dribbly stream.

Think of the way it dissapates heat...
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Old 06-27-2009, 05:36 AM   #16
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^^^ What he said^^^ You want the water to be a very fine mist (high pressure pump is needed) so by the time the water goes through the IC it is evaporating. If you soak it to much all you end up with is a warm IC with more water warm water all over it.
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