ive had good luck with my orion chrome touring motors. i have an 11x3 and a 9x3. i prefer the 11x3 for our long track because i found the correct gearing where i run consistent lap times and still make 5+ minutes. however, my 9x3 is faster on the straights but i cant seem to find the right gearing for 64pitch on my tc3. i get better laptimes with the 11 turns.