Sensorless motor timing

[Brandon]

Can't get my head around this! If I lower the motor timing of my castle 2650kv via the castle link, does this increase torque and reduce heat or if I advance the motor timing, does this increase the rpm and lower torque so increasing heat?

 

[roden83]

Yes your right lower the number = more torque and less stress on the motor = less heat

 

higher = less torque motor works harder = higher motor temps 

 

hope this helps mate

[Tug]

Upping the timing will increase speed via higher rpm, but will run less efficiently and produce more heat. 

[Brandon]

Awesome! Clears things up! If I increase the pinion gear by 1 tooth then does that defeat the object of lowering the timing?

[Tug]

In theory, yes. However, I've never noticed much difference when changing timing. Perhaps it's time for me to try again. 

[Brandon]

Well I've been running 18/42 on 4s in my wr8 which is farely light. But I've noticed it's running a bit hot. I didn't want to decrease the pinion teeth too much as It would take a lot of the speed away so I thought motor timing would help with this.

ill soon find out wether I notice any difference or not. Maybe it's the heat we've been having that increases the temps a lot.

[Tug]

Do you have a temp gun? The human finger isn't very accurate. 

[Brandon]

Yeah I do just hadn't had it out. I used the 5 second touch on the motor. I'll be using the temp gun when I go out again to see if it produces less heat or not 

[turok007]

when i was racing using brushed setups you would keep changing the timing until  you were happy with the speed and pulling away on the track.   as for brushless i noticed the difference on a slash 4x4 and a TT mt4  but as i wasn't racing i didn't bother to much about it.

[Brandon]

Well I've set the timing to low, so I'll give it a test tomorrow. Has anyone set the timing to the lowest before?

[turok007]

i see it this way why strain something if your not racing so i normally set everything to lowest. 

[roden83]

All my trucks are set to 0 timing and all run great no cogging on 2 and 3s batteries 

[Brandon]

Awesome! I'll be bringing my laptop with me tomorrow to switch it to 0 to try that. Currently I'm going to try the 1.5 If I can remember and see how that goes

[Brandon]

Roden83 did you notice any difference in heat?

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[turok007]

are you going round a track or just bashing   as you have to factor in gearing.   so once you have a good setup  you could gear down but then up the timing or go the other way 

[roden83]

Yeah mate you will notice the heat if you put to much timing on a motor just start a 0 and test it at the next till your happy with the performance you mite get some cogging if the motors timing is to high as well

[NuttyProfessor]

timing advances the rotor, like advancing the distributor on a car, each motor has a sweetspot too. I always run 0 timing so the motor is less stressed so lasts longer. If you ask the manufacturer of the motor, they should give you the sweetspot for the motor to run at its most efficiency. My team epic duo in my hooligan says 15 degrees is its perfect timing but you can adjust the endbell to fine tune it. Think of TDCI,CTDI etc diesel engines, they run 0 degrees of timing so they are more efficient but have more power with a smaller lump as opposed to diesels of old running 15-20 degrees of timing but needing a bigger engine to get the same performance.