C50 maxx motor vs a hacker 9L or 10L

[coolhandcountry]

I have ran the 9xl on ratios from 20 51 to 14 51. Depends on what I was doing. The 20 51 on 20 cells is down right fast but the heat is a little much. 18 cells works well though. If you run the slower counts in cells you can run the 1851 gearing with no sweat. I run the 3.31 diffs to.