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lincpimp · 01.26.2008, 01:16 AM

Heat production appears to be based on two things. Motor effecientcy, and load. I feel that the feigao motors are best between 30k and 35k rpm. Inside of that rpm range gearing for 40mph seems to be the sweet spot for these motors (in a revo/maxx sized truck). As long as good quality batteries are used this wil be a good setup.

I prefer to run the motors near 35k rpm. This leads to lower gearing, and less load on the motor. Plus having a larger motor speed range and lower gearing seems to work better over that range. The 9xl seems to be a good 5s motor, I have one but have not tried it yet. It will do in my savage conversion on 5s. I have run the 7xl and 8xl on 4s and they both work fine for me.

	(#8)
lincpimp Check out my huge box! Offline Posts: 11,935 Join Date: Aug 2007 Location: Slidell, LA	01.26.2008, 01:16 AM Heat production appears to be based on two things. Motor effecientcy, and load. I feel that the feigao motors are best between 30k and 35k rpm. Inside of that rpm range gearing for 40mph seems to be the sweet spot for these motors (in a revo/maxx sized truck). As long as good quality batteries are used this wil be a good setup. I prefer to run the motors near 35k rpm. This leads to lower gearing, and less load on the motor. Plus having a larger motor speed range and lower gearing seems to work better over that range. The 9xl seems to be a good 5s motor, I have one but have not tried it yet. It will do in my savage conversion on 5s. I have run the 7xl and 8xl on 4s and they both work fine for me. Alot of Savage parts for sale!!!