[coolhandcountry]

You getting a 1930 8t or a 1940 10t? The 9920 can handle both. I would think you would do it the other way on the turns. 1930 10t or 1940 8t I ran 12 51 gearing with 12 cells and 1/8 buggy diffs. I had it on a 7020 controller but it was a little much for hard running. I have a 9920 to replace the 7020 but just haven't done it yet. :D What kind of cell count are you going to be running?