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Thread: Autocross to Win Updated

  1. #1
    Left Leaning Mantoe
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    Thumbs up Autocross to Win Updated

    Just under the wire for 2011:

    http://farnorthracing.com/autocross_secrets24.html

    The long awaited weight transfer chapter. Plus some other minor updates.

    DG
    In theory, there's no difference between "theory" and "practice". In practice, there is.

  2. #2
    Left Leaning Mantoe
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    Default

    Some missing graphs added and some other minor revisions complete.

    This is very nearly approaching "done".

    DG
    In theory, there's no difference between "theory" and "practice". In practice, there is.

  3. #3
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    Dennis, the site is really great. I love everything I just had one curiosity about the oversteer/understeer characterization on the mathematical model?

    Also are you using the original or new school "force based roll centers" formulas? Not trying to open that can of worms debate, but just curious. Again, great site. It must be the best free resource out there on the net. I refer people all the time.
    97 Eclipse GS-T 687whp/660tq Time Attack money pit

  4. #4
    Left Leaning Mantoe
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    Original.

    The dynamics calculator is pretty good, but that "understeer/oversteer" calculation is pretty coarse. It is right in the general sense, but I wouldn't hang my hat on it. Too many other factors affect balance to make it truly authoritative.

    Note too that the shock force calculator slightly understates compression. Rebound is good, but add about 10% to the compression numbers.

    DG
    In theory, there's no difference between "theory" and "practice". In practice, there is.

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