In general terms the brushless motors act like the brushed version of their number of winds times 2. This isn't exact but it is real close to performace.
3.5 BL = 7 turn mod
4.5 BL = 9 turn mod
5.5 BL = 11 turn mod
6.5 BL = 13 turn mod
8.5 BL (5800) = 17 turn mod
10.5 BL (4300) = 19 turn mod (close)
13.5 BL = 27 turn stock (close)