NEW MOTORS AND MORE
Based on testing in
Marlin Motion Related Configuration.h Settings for MakerFarm i3v that suggested the CW 42BHH48-050-24A motors from my older i3v kit were limiting my max Z feed rate, I opted to replace all the CW motors in my 8-inch i3v with more Kysan 1124090 motors. A Kysan has worked out well on the extruder for the last couple of months. Replacement of the motors was no easy feat since I had dressed and bundled all the printer wiring. The Kysan's have heavier gauge wires than the CW motors, so I didn't want to just cut off the wiring at the CW motors and splice on the Kysans.
The Kysans run cooler, so I took out all the motor fans and related wiring that had been added for the hot-running CW motors. Good riddance.