Originally Posted by CraigM

I had a bit more luck with my SPX Stock Spec/Novak 10.5 over the weekend. I had a full day of practice before a 2 day event so I decide to test rollout and profile options. I started with a 36.5mm rollout on profile 5, the motor temped in the low 40s so I worked my way up to profile 7 with the temp in the low 50s, then profile 8 and it was in the mid 50s (the motor was really coming alive by then). I didn't really need to, but I decided to gear up to 38mm and even then the temps only rose to ~60 (I checked it at 2.5 and 5 min marks to make sure the motor was safe) but I picked up another tenth, so I ran with that gearing all weekend and the motor was fine, never temped above 60degC

I'd suggest 36mm and profile 7 might be a good starting point for that motor on most tracks, and then go from there