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Old 09-05-2008, 10:01 AM   #1
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Default Where to place AIT relative to WI?

As I reinstall the motor, I am moving the location of my water injection and adding an AIT sensor for the MS-II. My thought is to put both of them in the outlet tube of the intercooler. My question is which comes first, the chicken or the egg?

I am pretty sure I want the AIT at "C" in the attached picture.

If the WI should be before it, do you think A or B?

IF WI goes after should I still put AIT at C and water at D? Or would AIT at B and water at C or D be better?

Any thoughts?
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Where to place AIT relative to WI?-intercooler.jpg  
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Old 09-05-2008, 10:04 AM   #2
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It's been covered before an they can never come to an agreement on how far away the AIT should be, I'd personally put it closer to the TB.
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Old 09-05-2008, 10:23 AM   #3
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It's on a supercharged car, so the intake flow is
Throttle body
Supercharger
intercooler
intake manifold

I thought I read somewhere that they didn't recommend putting the sensor directly in the manifold, so, the charge pipes are an option, but due to the layout maintenance/replacement would be much more difficult.
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Old 09-09-2008, 08:53 AM   #4
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I'd suggest not putting it too close to the butterfly valve, I originally had it there and had terrible heat-soak issues at idle, I moved it to a nice cool place after the IC and the heat-soak issue is gone.
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Old 09-09-2008, 10:35 AM   #5
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I would probably put them as far apart as possible. That way the water would have time to evaporate before hitting the AIT sensor. So, WI at A and AIT at D. However, that is just one small part of the equation.
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