Flipsky 6374.
2 Likes
@hyperIon1 @PatRocks or anybody else who already received the 6880 190kV motors from maytech, would be nice to see what the new vesc tool says about those motors and if it is close to the specs maytech gives.
1 Like
I think @PatRocks can when he is back from holiday. I won’t have any until the end of next week to test.
2 Likes
Soon… ill look into it further and report asap
2 Likes
eLofty 75KV direct drive motors
4 Likes
Torqueboards Direct Drive
3 Likes
Turnigy Aerodrive SK3 - 6374-192kv Brushless Outrunner Motor
VERSUS
Turnigy SK8 6374-192KV Sensored Brushless Motor (14P)
The SK3 is more powerful than the SK8 (77A-10mOhms VS 67A-13mOhms)
It’s also lighter! (858gr VS 940gr)
2 Likes
Turnigy G160 Brushless Outrunner 290kv (160 Glow)
52A - 22mOhms
1 Like
C6364-KV280 EMP brushless Motor for airplane RC Outrunner
59A - 17mOhms
1 Like
Hey I think this thread is awesome. I tried searching a similar thread but didnt come up with anything good. Just a few small threads here and there, most quite old. I got here by finding a single post in thread about a different subject, that led me to vesc project thread on the same thing, then a link that led me back here to this thread. So I changed the title to make more easily searchable.
This is my motor its
Racestar 5065, 149kv, 67mOms.
Its been thrashed for two years so I dont know if that has any effect but the resistance is quite high even for a 149kv motor?
1 Like
Considering that the torqueboards 5055 190Kv is 40 mOhms and they have the same size stator, 67 for 149Kv sound about right
As Kv goes down resistance goes up for the same motor
What is the factory kv rating?
Actually not Bro.
2 Likes
C80100 SENSORED OUTRUNNER BRUSHLESS MOTOR 130KV 7000W
MOTOR: C80100 KV: 130 POWER: 7000W WIRE WINDS: 8D MAX AMP: 200A ESC: 250/300A MAX VOLT: 18S NO LOAD CURRENT: 2,0 SIZE: 80 x 100 ( without shaft ) WEIGHT: 1.980g SHAFT: 12mm with 3mm KEYWAY Accessory pack: Yes Internal PCB with 120 degree hall effect sensors
120A - 9mOhms
2 Likes
That’s a big boy.
Although I am slightly disappointed in the weight/power ratio.
I would expect more of the additional weight compared to a 6374 motor to go into copper.
This thing weighs 240% more than a 6374 
It is a 130kV though, I would expect a 190ish kV to take even more current.
Good point but you can run it 18S.
Enamel is a real pain to remove, more than on 6374 motors.
It doesn’t look as good as SK3 motors, which are the best quality motors in my opinion (but I didn’t try TRAMPA ones).
You can probably run the other motors in 18s too. Essentially you can run as high voltage as you like provided the insulation in the windings holds up. The problem for us is that most vescs can’t run higher voltages than 12-13s. I had the white 6364 154kV Trampa motors and found them lacking.
How is the new vesc tool coming up with its amp limit and maybe it’s doing what amounts to figuring the motor km? I don’t know what numbers u guys look at but the kv and resistance alone should tell u the motor km or how much heat/waste produced for a given amount of torque and can compare all motors that way: the motor km If someone is good at math and can convert the kv to the kt and then throw the resistance number in then will have the km and we can compare all the motors with that number and only other variable being how well it can rid of the heat produced And iron losses
1 Like
It assumes 60W heat losses as a limit for this size of motor, so after measuring resistance and using Ohm’s law it calculates the maximum amps it can take.
2 Likes