outrunner for Revo on 4s ?

[johnrobholmes]

The ebay emax motor is 180gm. Pay attention to the weight. 225gm or higher for an Emaxx.

Originally Posted by johnrobholmes

The ebay emax motor is 180gm. Pay attention to the weight. 225gm or higher for an Emaxx.

not to hijack this tread but if the numbers are the same why is the weight not the same or close?

[johnrobholmes]

Originally Posted by Desmo

not to hijack this tread but if the numbers are the same why is the weight not the same or close?

Because sometimes a manufacturer will stretch the truth a bit. I have found the easiest way to rate an outrunner is with weight. Same for batteries. If the motor is too small, it will have to work a lot harder. If the motor is too small, it will also have trouble dissipating heat. I have that emax motor you linked to. It is about 6.5 ounces and not really all that powerful (for a revo). The air gap and stator laminations are huge too, so it isn't very efficient.

It would work, but you will either have so-so performance or the motor will burn up in short order.

Originally Posted by johnrobholmes

Because sometimes a manufacturer will stretch the truth a bit. I have found the easiest way to rate an outrunner is with weight. Same for batteries. If the motor is too small, it will have to work a lot harder. If the motor is too small, it will also have trouble dissipating heat. I have that emax motor you linked to. It is about 6.5 ounces and not really all that powerful (for a revo). The air gap and stator laminations are huge too, so it isn't very efficient.

It would work, but you will either have so-so performance or the motor will burn up in short order.

Cool, thanks for the info