RE: Why Is There kV ratings and T ratings for BL Motors?
I'm not so sure on T, but the lower kv in bl means more torque. higher kv more rpm and top end.
A good example would be, 1/8th mt or truggy/buggie would be a 2200kv motor or around there, a 1/10th st truck buggy would be around 4600-5700 and higher, and for 1/12th or mini's 10,000 kv.
I'm sure someone else will chime in for more info, tho from my basic bl knowledge i think i hit that pretty close to the head.