What are everyones opinion on a good motor for 4s?

7xl or 8xl?


Neu 1512 2.5d/f or Neu 1515 1y/F


1940 7/8?

Has any one run the 1512 in a buggy/truggy before? If so, how did it do? I really like the Neu 1512 2.5, light and powerful. How would it compare to an xl motor?

Thanks again:018: