Thanks for the example I get the formula now.By the way my MMM has run perfectI am just a backyard basher but want to learn as much as possible about lipo ratings to protect my investment in my MA batteries.
I would not suggest using a 4s 4000 20c lipo (maxamps) with a 2000kv (or so) motor in a MT with a MMM. It will not be enough, unless you gear for 30mph or less. Only experience speaking here...