information on kb45 motors?

[scarletboa]

my KB45-8XL separated the rotor from the shaft, so i ground down the shaft on my KB45-12L 1400kv motor and threw it on my savage. the run lasted about 6 inches as my EZrun 150a smoked itself....the only setting i changed on it was turning the LVC off. i was using a lipo monitor that plugged into the balance lead on the lipos, because the stock setting of 3.0v was too low. i had done it manually as i didn't have the program card at that point and i might have messed something up in the programming in the process of turning the lvc off.

BTW: i was running 2 3s packs in series.

[Nixpus]

Will be testing the KB45-08XL in a converted savage soonish... on 6 cells of course. 35k rpm sounds pretty reasonable.

[_paralyzed_]

Originally Posted by Nixpus

Will be testing the KB45-08XL in a converted savage soonish... on 6 cells of course. 35k rpm sounds pretty reasonable.

I smoked mine in 5 minutes on 6s in an e-maxx. agwut has a lot more experience than anyone with kb45's and he recommends 25k rpm.

Whatever you do, keep watching the temperature.

[aqwut]

Originally Posted by _paralyzed_

I smoked mine in 5 minutes on 6s in an e-maxx. agwut has a lot more experience than anyone with kb45's and he recommends 25k rpm.

Whatever you do, keep watching the temperature.

yeah, I know for a fact..
the 1700KV one runs awesome on 4S..
the 1000KV one runs awesome on 6S...
and the 700KV one runs awesome on 8S...

So they're are all about 20-25K range...
You could run them all day long with a heatsink and/or fan...

The ones that died on me where running about 40-45K rpms.. They don't seem to mind the amp draw, they just don't like the RPMS...

My favourite is the 1000KV, insane for showing off on 8S.. 700KV same thing on 12S...

[aqwut]

Originally Posted by Nixpus

Will be testing the KB45-08XL in a converted savage soonish... on 6 cells of course. 35k rpm sounds pretty reasonable.

I would use the 1000KV for 6S and just gear it higher...