Making The Right Neu Motor Choice?

[SpEEdyBL]

The 1515 1Y on 6s will blow the 1512 1Y on 4s away. A better comparison would be the 1515 vs. the 1512 each on 4s, because their internal resistances are practically the same, meaning that when you gear the 1515 to match the speed of the 1512 you will use the same amount of current from the battery. I don't see why you can't run the 1512 1y on 5s though, which would still be pretty sick. However the 1515 might be better for a truggy because you would have more gearing options.