hellcat MAP sensor for Water/Meth?

Discussion in 'SRT Hellcat Performance' started by upnorthstar, Jun 9, 2015.

  1. upnorthstar

    upnorthstar Silver Member

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    Anyone know exactly which MAP sensors are used? I'm trying to figure out the best signal to tap & the appropriate scaling for water/meth injection..Note: I can only calibrate flow using IPW or MAP signals for the Aquamist HKS-3, and prefer to go with MAP...

    The MAP options for this circuit board are...
    a: Absolute (can be used for any sensor with 0-5V...ie:TPS)
    b: 2.5 bar MAP sensor (converts a 2.5 bar MAP to read from atmospheric to 22psi full scale 0-5V output)
    c: 3.5 bar MAP sensor (converts 3.5 bar MAP to read from atmospheric to 36psi full scale 0-5V ouput)

    just doing for cooler combustion temps, 50/50 mix, not tuning for it ( don't want to constantly worry about running out)

    thoughts?
    thanks
     
  2. B5 Blue

    B5 Blue Platinum Member

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    I'm confused. Are you trying to tap into the map wiring physically? IPW? Pulse width? Anyhow MAP should be 3 wire power/ground and signal just need to see if power is 5 volt reference or battery power.
     
  3. upnorthstar

    upnorthstar Silver Member

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    Thanks B5...Yes physically splice the MAP sensor...trying to figure out which sensor this car has...so I can set the controller for an accurate reading...
     
  4. B5 Blue

    B5 Blue Platinum Member

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    I don't know which type it is ask fnkychkn or NX91Notch I just know the wiring
     
  5. SRTFighter

    SRTFighter Silver Member

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    Old thread...any updates? I am also looking at MAP/MAT upgrades and possibly water/meth.
     
  6. upnorthstar

    upnorthstar Silver Member

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    Here's the Fuel Wiring diagram if you need it
     

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  7. SRTFighter

    SRTFighter Silver Member

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    Thanks!
     

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