I still run TC-3's.... bought one brand new back in 99' or 2000..... Essentially the same car.
If I recall, I haven't checked it in years, but I run a 4600KV setup on 2S with a 69T spur and 20T pinion. Nothing ever gets hot, and it's an OG Castle system. I have been running it that way for over five years now and just run the piss out of it.