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Thread: xb12r tachometer

  1. #1
    Junior Member
    Join Date
    Jan 2007
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    6
    Anyone knows how many pulses per engine revolution are sent as signal to the tachometer of the xb12r ?

    I want to install an RPM switch on my nitrous kit, but I need this info to calibrate it !!!

  2. #2
    Senior Member
    Join Date
    Nov 2006
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    524
    is it better to set nitrous to throttle full open ..instead of rpm......?

  3. #3
    Senior Member
    Join Date
    Oct 2006
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    1,962
    Progressive is better....if you can get it to work. I will do my best to find out some info man.

  4. #4
    Senior Member
    Join Date
    Oct 2006
    Posts
    206
    I'd expect he's looking at a window switch that would add logic in addition to WOT and would turn on the NO2 at 3000 RPM and off at 6500 RPM or something like that.

  5. #5
    Senior Member
    Join Date
    Oct 2006
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    1,962
    Yeah wide open can do damage quick. Too iffy of a set up for me. I prefer progressive on anything, whether it bike, car, boat, or whatever....

  6. #6
    Junior Member
    Join Date
    Jan 2007
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    6
    Guys, I will Both use a wide open throttle switch AND a RPM window switch from 4000 to 6000 rpm.

    I am not sure I need progressive since I am only aiming at a 25 hp increase using the MPS dry nitrous spraying in the airbox.

    Any advice on the nitrous kit is welcome...But please see if you can get the info about the tachometer pulses...



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