Not USGT related, but figured I'd respond to the new guy to help him out.

I have one of the older silver Trackstar 17.5 motors. I picked up a motor analyzer and was doing some testing today. The TS 17.5 has a hard stop on the timing and the maximum was 39 degrees. At that timing it was pulling 1.7 amps and did 2447kv at 19337rpm. Pretty bad IMO. Although this is a motor from 2012, it doesn't have much run time. As a comparison, I have a Trinity D4 17.5 and at 35 degrees it pulled 5.9 amps and did 3303kv at 25768rpm. I was curious, so I took the TS 17.5 apart to see if I could advance the timing any further. I removed one of the rotor shims and loosened the timing screws and was able to go over the timing stops. I dialed it in to 6.0amp and that resulted in timing of 49 degrees, 3189kv and 24562rpm.

Before adjustment I had the TS17.5 geared at 69/35 (5.13 FDR) in my TRF201 buggy and it would run forever without getting hot. No idea how it would compare in racing as I've never raced it. If I want to run the new timing level, I'm sure I'll have to gear down and watch the temperatures.

Food for thought and may shed some light as to why the TS 17.5 seems so slow.