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Patrick · 04.05.2007, 06:44 AM

I don't know the specific max temp for the feigao's, but I think I've read most motors shouldn't go above 200f (93c) at max. I don't think I'd want mine any where near that hot though.
An unloaded 7xl on 16.5 v (since there'd be almost no volt drop unloaded) is going to be spinning near 40000rpm..not something I'd be doing to my motor for more than .5 of a second, if that.
It was never going to be a test for the ESC since it was at or near full throttle, and 140 watts at that voltage is less than 9 amps. So I'd be supprised if you felt heat in the ESC with no heatsink.

	(#31)
Patrick RC-Monster Aluminum Offline Posts: 862 Join Date: Dec 2006 Location: Perth, Western Australia	04.05.2007, 06:44 AM I don't know the specific max temp for the feigao's, but I think I've read most motors shouldn't go above 200f (93c) at max. I don't think I'd want mine any where near that hot though. An unloaded 7xl on 16.5 v (since there'd be almost no volt drop unloaded) is going to be spinning near 40000rpm..not something I'd be doing to my motor for more than .5 of a second, if that. It was never going to be a test for the ESC since it was at or near full throttle, and 140 watts at that voltage is less than 9 amps. So I'd be supprised if you felt heat in the ESC with no heatsink.