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-   Brushed/Brushless motors, speed controls, gear drives (http://www.rcuniverse.com/forum/brushed-brushless-motors-speed-controls-gear-drives-123/)
-   -   What timing do I use? (http://www.rcuniverse.com/forum/brushed-brushless-motors-speed-controls-gear-drives-123/11333823-what-timing-do-i-use.html)

rem0.061 12-16-2012 03:48 PM

What timing do I use?
I have a 5692 540kv inrunner and an ESC with 3 options: auto, 7deg., and 30deg. What timing is best?

rem0.061 12-17-2012 02:11 PM

RE: What timing do I use?
I know inrunners take low timing and outrunners use high, but I don't know the difference in degrees.

Dr Kiwi 12-17-2012 02:21 PM

RE: What timing do I use?
In testing 100's of motors, I've always have used "auto".. only if the test motor doesn't run well do I fiddle with changing it.

Try auto.. it might be all you need.

rem0.061 12-17-2012 02:28 PM

RE: What timing do I use?
I am using auto, I was just wondering what the most efficient or powerful kind of tining is for an inrunner.

Dr Kiwi 12-18-2012 09:53 AM

RE: What timing do I use?
I finally tracked down Ken Myer's great "timing" article on its new site: http://www.theampeer.org/timing/timing.htm

Generally it seems that higher timing has few advantages... maybe more power, but a lot more heat wasted!

Over time with testing, we've found it's best to use a lower setting in order to keep motor temps in check, especially with very, very fast setups.

Higher advance makes the motor run hotter, and the higher the Kv of the motor, the hotter it will get! Too high of an advance setting will give the same results as too much advance on a brushed motor - you will actually LOSE power and speed while the motor cooks itself!"

carlnoki 12-31-2012 05:45 PM

RE: What timing do I use?
IF that is a Leopard 5692 540KV motor, then it is also a WYE wound motor.
The WYE wind motors are normally timed in the middish to lower high timing areas.
The 7 deg. timing available from your esc should be fine.
If it were a DELTA wind motor, then lower timing is called for.

Knowing the type of windings the motor has also helps in the initial setting up of the timing of the esc.
Then through testing you can see what the results are by going both raising and lowering the timing.
In your case, you only have a very limited amount of timing selections.

I use the Fightercat (ie, Fliermodel line of esc's and they have timing adjustments in 1 deg. incriments)

I run outrunner motors in marine applications (racing mono and hydros) and they are set at around 5-10 deg. depending
on the application.
I have run the inrunners for air usage and they seem to follow the same pattern as for marine use.
But this is just my findings for my applications for the Brand of motors I use..

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