Hi Folks,
New member here so be gentle...

Bought a Wildcat (26.5 inch one) minus speed control and motor on scratch & dent. Stock it had an 1800kv outrunner and a 50 amp esc so I went to HK and got these:

1800 kv outrunner
http://www.hobbyking.com/hobbyking/s...00KV_438W.html

50 amp water cooled esc
http://www.hobbyking.com/hobbyking/s...C_3A_UBEC.html

So, I install all and use a 3 cell 2200 lipo and all is well for about 3 minutes. Good speed and boat handles well.

Then, all stops and esc is burned out. Plug in and initializes (beeps 3 times, then nothing).

So, any speculation on post mortem? Could this combo pull more than 50 amps? Is the speed control over rated?
Should I have used capacitors?

I got a spare esc and I could try that but I do not want to fry it too doing something stupid. I have a watt meter but that only works in my hand so I cannot see what the current draw is on the water.

Sorry for the long post, any help appreciated.

Thanks
Gene