Local racer gear Ti 8D is about 100:31 or 100:30= 8.06 ~8.33
Refer to instrustion of Kr is to gear it less one to two teeths , so it would be around 100:29 = 8.6.
So , i use about 13~15 degree timing with stock spring with stock brush (767 ?) . I cant feel the speed , not so punch and not fast at the top end. So i try to gear pinion teeth larger to about 104:32 =8.125. The speed is very nice , powerful punch and great top end.
Qs1: Why the gearing Kr is same as Ti ? (not smaller 1 teeth?)
Qs2: Really need to gear Kr small 1 teeth? Anythings wrong?
Qs3: What is the FS unit of the stock motor spring (copper colour)of Kr ?
Qs4: In the local RC shop , there is hard to find trinity motor spring , can i just bend the stock spring harder ? How much should i bend?
* I just afriad if i gear the Kr too harsh ........