Originally Posted by Ostach24

Have you guys run multiple escs with the same motor back to back? Real world test instead of just going by the numbers and all speedos essentially having no resistance?
It’s been a couple years now, but I ran a tekin rs pro black escs with 13.5 spec r motors and they were significantly faster than when running the same motor with a different esc.
I ran the setup for a little over a year and could run “stock” and mod with the same motor/car. No timing, no boost, no adjusting the timing on the motor from how it came and the car was as fast as mod cars on a track where a mod motor made a big difference.
After a year there was a malfunction with the esc. It kept shutting off, some times it would flash indicate thermal and others would show Lipo cutoff. It happened a few times in the main and I got tired of it. Our mains were 8 minutes instead of 5 so heats/qualifiers were fine but the mains were a toss up. I decided I was going with a different esc so I tried a rsx with that motor and it was significantly slower. At the time I assumed there was a difference because the rsx probably didn’t have the same low resistance as the rs pro black because the black is marketed for spec racing. I picked up a xr10 pro and it felt the same as with the rsx. At this point I thought something happened with the motor and maybe it was pulling more power for some reason causing an issue with the esc. I threw the motor in with my other rs pro black and nope nothing wrong with the motor either. It was just as fast with the other rs pro black edition.
That motor and esc combo was super fast. I reached out to tekin about the esc and they recommended not running the esc with 13.5 because with 4wd it was a lot harder on it.
I’m not sure if it was just that esc and motor combo or if other motors would have been as fast because I only had tekin motors at the time, but that setup was fast and I’d like to have that feeling again.
Before I spend a few hundred on some new tekin stuff I figured I’d ask the group to see if anyone noticed something like this with a certain motor/esc combo.