I am currently trying to figure a way to put the Ca (Coefficient of Automatic Transmission) into the Cs number. I think to get the numbers right, I will have to use a bathroom scale to figure out the force to overcome rolling resistance, and we will have to do some coast down testing in neutral. It would be nice to have a completely disengaugeable clutch, but I don't see that happening
. The worst case is that we will only be able to show a net positive or net negative for our runs, which isn't too bad (but I would like to have the numbers...).