What should our "smoothing" be on the Dyno?

Jordo!

Well, right.

The range of values in the graph will tend to change a bit with smoothing, because the max values are themsleves just two data points (i.e., hp, tq) that have been plotted, and the smoothing function will eliminate (transform, really) some of those individual points.

Thus, it is possible to go up or down a wee bit in terms of what values are reported, but the whole purpose of the smoothing transformation is to eliminate outlier data points.

The correction factors are different -- they apply a correction formula based on the expected influences of temeprature, air pressure, and humidity. In theory, they allow you to make comparisons between sets of runs taken under diferent ambient conditions.

Different correction factors use slightly different formulas, but they are all defensibly legitimate.

If all you care about is the absolute value of the dynamometer's estimate of hp/tq made on that specific day, just go by uncorrected.

As it turns out, on your last dyno day, the ambient conditions must have been pretty close to what SAE determines to be "normal", because SAE CF was 1.00, the same as uncorrected.

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