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Thread: Ford calculations to interpolate data

  1. #1

    Ford calculations to interpolate data

    Hey all, so been tuning my g6 for a little bit now and wanted to find out if anyone knows what calculations ford uses to interpolate data when the table is not scaled high enough?

    I have a spreadsheet and have tried the trend formula but the output is heavily dependant on how many known values I use from the table. I.e if I use the last 3 cells I get a very different result to if I use all 12 cells.

  2. #2
    Potential Tuner
    Join Date
    Jun 2010
    Posts
    8
    Ford clips values at the end of tables to the last cell. E.g. If Fuel table has lambda .8 in all load cells of the final rpm column of 6000 then at 7000 or 7500 rpm the lambda is still .8
    Linear interpolation is done between cells in columns and rows

  3. #3
    Quote Originally Posted by rmrmd1956 View Post
    Ford clips values at the end of tables to the last cell. E.g. If Fuel table has lambda .8 in all load cells of the final rpm column of 6000 then at 7000 or 7500 rpm the lambda is still .8
    Linear interpolation is done between cells in columns and rows
    Thanks mate, thats really helpful

  4. #4
    Advanced Tuner
    Join Date
    Aug 2015
    Posts
    230
    Interpolated between maps and pegged and the end of the map.

    Something to remember if you are exceeding the load by the max value on the map, it will just peg and that could cause you to run too much timing if you havent rescaled your load axis.