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BrianG · 06.13.2007, 12:20 AM

On 3s lipo, the 4600 will hit rpms of around 51,000. That's pretty high. Lower kv motors are more forgiving with gearing too. The 5700 could hit the same speeds, but you'll really have to find the sweet spot gearing-wise to prevent overheating. If you look around here, you'll see a number of examples where it is better to use a lower kv motor with higher voltage.

What other forum is telling you this? Are they brushless "experts" or people that just slap in any old thing and run it hard? Most everyone here will offer solid advice for a reliable setup based on experiences.

	(#11)
BrianG RC-Monster Admin Offline Posts: 14,609 Join Date: Nov 2005 Location: Des Moines, IA	06.13.2007, 12:20 AM On 3s lipo, the 4600 will hit rpms of around 51,000. That's pretty high. Lower kv motors are more forgiving with gearing too. The 5700 could hit the same speeds, but you'll really have to find the sweet spot gearing-wise to prevent overheating. If you look around here, you'll see a number of examples where it is better to use a lower kv motor with higher voltage. What other forum is telling you this? Are they brushless "experts" or people that just slap in any old thing and run it hard? Most everyone here will offer solid advice for a reliable setup based on experiences.