honestly with any of the 1/8 systems, I never really found a benefit to messing with the timing, etc versus just upping the pinion size. The motors ran cool enough with a variety of pinion size changes. Not saying you may not see benefit, but I didn't.

For perspective on the 1900Kv motor, different car mind you, but I could easily do a 21 or 22T pinion using it with the RC8 on a 200Ft straight track back when I had one.