Im trying to decide which ESC to run on a EFlite Diamante 25E. When I ordered the plane from Horizon, one of the options was a Phoenix 60, so I got it. After reading the instructione, it clearly states that when running a 4S, it is recomended to disable the bec and run a separate RX bat to power the servos.
My question is,with EFlite outrunner BL32 motor, what is the best ESC to run? It seems like a 60amp esc would be plenty big enough to power a 4S setup. Am I missing something? I was also thinking of useing the Phoenix 60 (BEC Disabled) along with an Align 3amp BEC/voltage regulator and a FP 1800mah receiver pack.
And lastly, I realize this plane is fairly new, but has anyone else out there put one together, and if so, what are you running in it?
Thanks

The Phoenix 60 is a great quality ESC, and I don't think there is any ESC that can run 4S with the BEC working. The problem is that the ESC must accurately deliver the switching pulses to the b/l motor using the 14.8 volts supplied, and then must use a duty-cycle switching scheme to regulate the voltage to ~5 V for the BEC side of things, and it's too much voltage differential for a simple circuit board to handle. They could make them, of course, but the end result would be much more expensive, and the number of users who'd buy them is too limited for the manufacturers to get interested.
Just buy the separate BEC / UBEC and go with it - they don't weigh much at all. It sounds like you have a good setup there.

Something like this:

http://www.wattsuprc.com.au/product_...sp?pid=EW-UBEC

Now - I appreciate that shop is in Australia so probably not much use to you, but just to give you the idea.

Cheers,
Oz.

I agree the Phx-60 is a great ESC but the Scorpion speed controls are rated to 4S lipo out of the box.

http://www.brushlessflight.com/speed-controls-c-6.html

My friends and I use several of these ESC's with no issues so far. Check them out, I will be getting more.

Thanks for all the replies. Big Daddy, thats what I was looking for, knoledge I ran it with the Align BEC/VR and FP 1800. Worked great and I had the 3amp BEC/VR left over from my T-Rex 600E in which a 6amp BEC/VR was added.