ESC Requirements - RC-Monster Forums

Marvin · **ESC Requirements -** 12.13.2008, 05:57 PM

If I'm running a brushless 1/8 on 5S (track use), what sort of Amp rating would I need for an ESC? I've been looking at some Hacker ones as they are easier to get than the CC and other speedos that are popular in the US.

speedracer1129 · 12.13.2008, 06:07 PM

That will be all relative to your gear ratio. The more speed you want, the higher the amp draw will become. I would suggest to get the biggest thing you can, at least 100amps continuous. Actually, you might be well off with one of lutach's ESCs.

Marvin · 12.13.2008, 06:19 PM

I'm looking for at most 40mph, 5s 5400mAh, using a 1900kV motor, and I have no idea what the current will probably be.It's going in an 808 with 'standard' (16/42) gearing. Apparently using RC-Calculations it will reach ~35000 rpm to get 41mph (no drag), 39mph (with drag).

magman · 12.13.2008, 06:56 PM

Get the biggest one you can afford...Mike sells several that will work for your application

suicideneil · 12.13.2008, 07:27 PM

100amps is a nice 'minimum' based on what I've read for so many years- if the older MMs could do 5s in truggies and buggies, then that would be a starting point; I'd say 120amps to give yourself more headroom.

BrianG · 12.13.2008, 07:42 PM

Quote:

Originally Posted by suicideneil

100amps is a nice 'minimum' based on what I've read for so many years- if the older MMs could do 5s in truggies and buggies, then that would be a starting point; I'd say 120amps to give yourself more headroom.

And so the MMM fits the bill perfectly...

suicideneil · 12.13.2008, 07:48 PM

I should have been in advertising and PR, but shelf stacking will do for the time being I guess...

magman · 12.13.2008, 11:12 PM

Quote:

Originally Posted by suicideneil

I should have been in advertising and PR, but shelf stacking will do for the time being I guess...

The shelf stacking helps support your rc addition!