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Thread: dd149mm maf transfer has too many cells

  1. #1

    dd149mm maf transfer has too many cells

    i have 30 cells on my maf table but the transfer data sheet has many more. it has 7 cells at .012v with stepped airflow #'s but counting that one cell, the sheet has 39 cells to reach from .012 to 5v. i cant add 9 more cells so how should i scale this ? i removed some and interpolated between the ones removed but the final line is less than desireable. dunno how to use excel or i would try an devise their formula. anyone run one of these that can help out ? attaching the maf transfer data

    Transfer_Function_H149mm.xlsx

  2. #2
    Senior Tuner
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    Transfer_Function_H149mm.xlsx

    I converted it to period and lb/min for you.
    Choose any 30 cells that will cover the airflow you will see in your application best, they are all just points in the over all bigger picture.

  3. #3
    I did that earlier but the overall curve had ups and downs after interpolating The spots I deleted. I was thinking it might cause issue

  4. #4
    Senior Tuner
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    You have more than 30 to choose from, you shouldn't have to be interpolating any cells.

  5. #5
    My bad, I meant smoothing. I loaded it and picked the cells to lose and I must say I was surprised. I was pretty much within 5% error on a light test drive pulling up to 3500

  6. #6
    I just wanted a smooth transition from cell to cell.