Hi, I'm new to racing and I was wondering if someone could give me a little advice. I am running an Xray T2 with a transmission ratio of 1.7, with a 108 spur. Racing in a 17.5 class on carpet track with rubber tires. Have a Speed Passion LPF 2.0 ESC. Any ideas on what size pinion gear I need and what settings I should run in the ESC (timing, punch, etc.). I have not adjusted the timimg in the motor. The motor is a Vector X12 from LRP. I would appreciate any help. Thanks.