Here are a few data points I got from my Novak Ballistic set at various amounts of timing advance, as set by a degree wheel.
Degrees KV
0 1700
30 1890 (This is the nominal setting, marked "N", on the label.)
45 2090
60 3680
The KV rating called out for silver can motors per TCS rules is about 2600. Achieving the same KV rating on my Ballistic requires about 50 degrees of timing advance.
Now I know why I need to turn down the throttle EPA on my brushed Mini to keep from running over the guys with 21.5 brushless motors! If left at the "N" mark, the Ballistic has only 73% of the KV of the brushed motor.