Will I fry my esc - RC Groups
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May 18, 2002, 02:38 AM
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Will I fry my esc

I'm currently running dd sp400,5.5x4.5 prop, 8-cell 600AE and jeti 10 esc in my S&B corsair. AUW right now is 16.04 oz.
Can I put an sp480 in it with out frying something?

Thanks, Glenn
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May 18, 2002, 03:43 AM
Registered User
You damage the ESC if you put too much current through it. So you could use 480 if you put a small prop on it so the current stayed low. There wouldn't really be much point doing that.

If you want the full power available from a 480 it would need more current than that ESC (and probably the battery) would safely take.

May 18, 2002, 07:11 AM
Registered User
Andy W's Avatar
A stock Speed 480 is a 7.2V motor, and will draw less current with the same prop and battery when compared to a Speed 400 6V. However, I wonder if you're running a 6V motor as it would draw over 12A with this setup (the stock Speed 480 would draw 11A and give almost identical performance, as it's a larger and more efficient motor, although it is much heavier). The 7.2V Speed 400, however, is only drawing about 8.5A, so it's probably what you have - in that case, moving to a stock 7.2V Speed 480 would make a difference, but would be too much for that speed control.
May 18, 2002, 10:50 AM
Registered User
Thanks for saving my esc guys.
Andy I am running a 6v 400. 5 flights so far, two of the with a 3 blade 6x4 prop. Guess I should get a 7.2v before cook the esc.

Thanks again for the info guys, Glenn