9XL headache

[redshift]

Paralyzed, it's not the motor getting wet we're worried about, it's the MMM.

Ok we did a labcoat test on Wed. night for temp. rise per min without cooling, and the test was run on both my MA 2S 6000 x2 and his IB 4600 7cell x2.

Results were extremely close:

On Lipo:
Motor start temp 65, outside temp 25 on all tests, gearing 20/68
After 1 min- 80
2 min- 104
3 min- 123
4 min- 139
5 min-160

On 14 cell
1 min- 82
2 min- 104
3 min- 125
4 min- 160
5 min- 168

Increased gearing to 20/62 and run on lipo again:
1 min- 95
2 min- 113
3 min- 132
4 min- 142
5 min- 177 (run VERY hard for last minute)

And it was too cold to do the 14 cell test on 20/62, so no data.
But as you see the average temp rise/ min is 20 degrees.

The motor shows no symptoms of damage, has very good power and now has cooling via one 2.5 inch square BB 12v fan running at 21v. After a merciless test last nite at about the same 25 degree outside temp, motor temps were not over 110!

Moral of the story, fans are a must -with these chinese motors at least.

Everything is happy now!