Originally Posted by
shortcut3d
The R1 Works V21-S definitely wanted more advanced timing to get similar KV. The amp draw was higher around 6 amps to get similar KV. This seems more like Slot Machines wanting more timing and drawing more amps than the last wave of motors. Based on the other thread for dyno results I set the timing between 42-45 for peak efficiency. The rotors also seemed very strong, but I don’t have a device to measure but would assume these are more torque based.
It has not been my experience that the R1 rotors are very strong. I have 5 R1 v21 motors of different flavors and the strongest rotor I have is 1720. Rotors are a crapshoot with R1 though, they don't offer a premium 5% rotor or whatever you want to call it. So I am not saying there aren't strong rotors out there, just that the ones I have aren't all that strong.