Car Corrections

Margin for error

grandvachegrandvache Member Posts: 1,854 ✭✭✭✭✭
hi guys, we seem to be finding a lot more measured testing results which is great, but I think it's worth having a conversation about natural variance in testing results, particularly for acceleration / speed testing.

Some of the Porsche changes posted here a week or so back are clearly significant, but reducing the 0-100 speed of a green hellcat (just for example) by one or two tenths is absolutely the sort of variation to could happen from one run to another, or because of atmospheric changes or the skill difference between one driver or another.

Do we want to think about establishing a threshold below which we don't forward reccomendations for any changes

Answers

  • grandvachegrandvache Member Posts: 1,854 ✭✭✭✭✭
    For instance this is just over a 4% difference.  Is that sufficient for us to consider it?
     @PlantedZebra nothing personal, yours was just the first measured timing I found.

    I still think the green hellcat needs to be rq25.
  • PlantedZebraPlantedZebra Member Posts: 368 ✭✭✭
    @grandvache If it's just 0.1 difference, I'm totally fine with it. But it's 0.3 so that's some difference right there.

    If you used TDC's MRA calculation formula, the Hellcat with 7.3 0-100 will result in 102.78 MRA and 7.6 0-100 will result in 94.87 MRA. That little 0.3 sec difference is big imo.
  • joel24joel24 Member Posts: 648 ✭✭✭
    And also, that stupid brick is not supposed to beat supercars in a standing mile 
  • grandvachegrandvache Member Posts: 1,854 ✭✭✭✭✭
    @grandvache If it's just 0.1 difference, I'm totally fine with it. But it's 0.3 so that's some difference right there.

    If you used TDC's MRA calculation formula, the Hellcat with 7.3 0-100 will result in 102.78 MRA and 7.6 0-100 will result in 94.87 MRA. That little 0.3 sec difference is big imo.
    Not saying the difference is small (ok, I AM saying the difference is small but that's not my point) my concern is more that we're potentially overcorrecting.  

    A 5% difference could easily be accounted for by low atmospheric pressure, slightly worn tyres, a heavy fuel load, a fat driver an ever so slightly slipping clutch or any number of other things.  It doesn't mean that the times in game are "wrong".

    We should discuss if a single set of measured testing from a single source gis sufficient for us to request changes like this.  I'm not saying definitively that we should or shouldn't, I'm just saying we should discuss it, and discuss if we need a threshold for change requests.
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