Auxiliary Injection The place to discuss topics of water injection, alky/meth injection, mixing water/alky and all of the various systems and tuning methods for it. Aux Injection is a great way to have a reliable high power rotary.

AIT sensor downstream

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Old Jan 11, 2016 | 04:18 AM
  #1  
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From: omnipresent
Tank Higher than nozzle?

Ok sorry the search function isn't working for me lately.
Is it ok if the AIT is downstream of the W/M nozzle? Here is a pic of the location of both ( the bung after the BOV is the intended nozzle location)

All input welcome, cheers.
Attached Thumbnails AIT sensor downstream-wi-maf-001.jpg  

Last edited by WANKfactor; Jan 12, 2016 at 12:56 AM. Reason: new question
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Old Jan 12, 2016 | 01:06 AM
  #2  
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From: omnipresent
Ok, new question. After finally procuring a tank that fits in the scant available space in my rhd turbo fb and knocking up a bracket for it, it occurs to me the tank is higher than the nozzle. There is no where else to put it that would not look stupid or be inconvenient.
Is there a check-valve or solenoid someone can put me onto to prevent the water/meth leaking out the nozzle? Or some other type of solution?
All input and ideas welcome.

Its an AEM kit i purchased off a member here. previous model with the old controller. Planning to get it tuned this week. Gonna be 41c tomorrow so taking day off to fit this off. Looks like there are pressure activated check-valves available but only from UK or US. Im in Aus so thats a 2 week wait.
Attached Thumbnails AIT sensor downstream-tank-nozzle-001.jpg  

Last edited by WANKfactor; Jan 12, 2016 at 02:04 AM.
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Old Jan 13, 2016 | 04:58 PM
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From: omnipresent
Can confirm the AEM nozzles dont dribble after priming the system and leaving the nozzle hanging in a container over night. Even though in the instructions its written in bold text not to mount the tank higher than the nozzle. It seems the little spring-loaded widget inside is effectively a pressure activated check-valve maybe.
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Old Jan 17, 2016 | 05:45 AM
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IIRC, HC...the author of the stickys in this section, recommends the IAT be upstream of the nozzle so it doesn't affect it and gives a true reading and not mess with tuning tables.

Last edited by Sgtblue; Jan 17, 2016 at 09:00 AM.
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Old Jan 18, 2016 | 05:13 AM
  #5  
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From: omnipresent
^Makes sense. Ive been doing a little bit of reading on it the last couple of days and there appears to be several schools of thought. I think i'll just put another bung in upstream for the ait, and then the tuner has options.
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