RC-Monster Forums - View Single Post - Brushless Savage

BrianG · 06.10.2007, 08:23 PM

Welcome to the forums!

The 1515 1y would be good on 5s. Total rpm will be over 40k, but Neu's max rpm is 60k. What a motor can handle will be based on the kv rating. Most people shoot for ~35k max rpm. So, just take 35000 and divide by the voltage you plan to use (18.5 for 5s) to get the kv of the motor you need. And you can vary the kv in that area. For a heavier truck, I would go with the 1515 as it will run cooler. The XL motors are good, but can run on the warm side.

	(#2)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	06.10.2007, 08:23 PM Welcome to the forums! The 1515 1y would be good on 5s. Total rpm will be over 40k, but Neu's max rpm is 60k. What a motor can handle will be based on the kv rating. Most people shoot for ~35k max rpm. So, just take 35000 and divide by the voltage you plan to use (18.5 for 5s) to get the kv of the motor you need. And you can vary the kv in that area. For a heavier truck, I would go with the 1515 as it will run cooler. The XL motors are good, but can run on the warm side.