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It's not the same motor, but this one is comparable.

http://www.goodluckbuy.com/w4822-390kv-outrnner-brushless-motor-for...

Yep, those are really good. They are better than the 5010kv 360kv motors due to two factors; less resistance and higher W (if the numbers provided are correct).

These guys have a better price for the same motors;

http://www.himodel.com/sort.php?sub1=E0

Those are the ones I'm testing first. Got an order in for some huge props for this, going to be interesting to see if they will even spin. I also got some 15" CF props on order just in case. Do you know how many mag poles these motors have?

I only have the W48-22 490kv version. So far they look very good, but I do not have any run time on them yet. 22 poles and you can see/feel/hear that they actually have been properly factory balanced.

I had no problem spinning up the CF 15x55 using 4S and a TY-P1 25A ESC with SimonK firmware, and no excessive heat either from motor or ESC.

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