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Qwik Data2 with AFR dual channel - Calibration

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  • Qwik Data2 with AFR dual channel - Calibration

    February 25, 2019
    Hello People
    About Qwik Data2 with Daytona AFR dual channel #91170
    The AFR seems to be 1 digit higher than what was recorded at the dyno.
    The calibration by way of import from the Edelbrock list sensor AFR systems. Any suggestions on the fix to read correctly.

    Same calibration on these sheets
    PDF Brochure No. 63-91170 Rev. 10/10

    Willis
    Last edited by wjohns; 02-25-2019, 10:10 AM.

  • #2
    You can always adjust the sensors readings manually, to read correctly.
    At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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    • #3
      Originally posted by BITE_ME View Post
      You can always adjust the sensors readings manually, to read correctly.
      From what number to what number Bits
      From what number to what number Value

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      • #4
        To do a manual ADC count you need the spec sheet from the manufacture. Google came up with nothing for the Daytona AFR Dual Channel 91170.

        You should only have to edit the value. ( If it's off by 1 digit. ) The graphic display will change as you do this.
        At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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        • #5
          LOL #91170 is a Edelbrock part number. Use the numbers in this PDF: https://edelbrock-files-v1.s3.amazon...librations.pdf
          At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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          • #6
            From the Edelbrock #91170 : "Highly accurate with less than + or - 0.10 AFR error over 10.3 - 19.5 AFR range."

            So. If it's a "whole" digit off, then change the 2 different values givin in the PDF I posted above.
            If it's off by 0.10, then don't worry about it.
            At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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            • #7
              Originally posted by BITE_ME View Post
              To do a manual ADC count you need the spec sheet from the manufacture. Google came up with nothing for the Daytona AFR Dual Channel 91170.

              You should only have to edit the value. ( If it's off by 1 digit. ) The graphic display will change as you do this.
              March 4, 2019
              Hello People
              Bite_Me
              Are you employed with Edelbrock

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              • #8
                No. I don't work for Edelbrock.

                Did you adjust the 2 "values" for the sensor? So the software would display what you want to display?
                At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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                • #9
                  Originally posted by BITE_ME View Post
                  No. I don't work for Edelbrock.

                  Did you adjust the 2 "values" for the sensor? So the software would display what you want to display?
                  No,
                  Need more data on how you came up with the fix

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                  • #10
                    The system converts the voltage from the sensor to a bit. The bits are from 0 to 4096.
                    With a linear sensor you only need two bit numbers ( minimum and maximum ) for the system will know the bits in between.
                    The value. Is just what is displayed on the screen.

                    So. In the PDF I posted above. The Edelbrock #91170 input specs are as follows:
                    0 bits for a value of 10.
                    4095 bits for a vaue of 20.

                    You input both sets to get a Air Fuel Ratio of 10 to 20 to be displayed on the screen.

                    If it's showing a whole number too high. Then you change the 10 to a 9, and the 20 to a 19.
                    If it's showing a whole number too low. Then you change the 10 to a 11, and the 20 to a 21.
                    At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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                    • #11
                      March 6, 2019
                      Hello People
                      The data I was referring to is actual Q Data2 graphs displaying the O2/AFR readings before and after that “fix” you’re talking about.
                      Have you these graphs to support your theory?
                      Attached Files
                      Last edited by wjohns; 03-06-2019, 05:57 PM.

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                      • #12
                        Sorry person have no graph for fix once consumed by data used.
                        At 43,861 MPH Elon Musk now owns the fastest car in this Galaxy

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