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squeeforever · 04:14 PM

the thing is, the 7xl has a lower kv rating which means that per volt it will spin less times. the 8l spins 3072 rpms per volt; which if you do the math on 12 cells that would be 44236 rpms. now with the 7xl it would spin 2382 rpms per volt; which on 12 cells would be 34300 rpms. plus the 7xl will have loads more torque which is needed in a large monster truck. the lehners are great motors and i prefer them over a feigao. if your running on 12 cells i would recommend a 2800xl or 3100xl. the lehners are gonna be a little more efficient and have more torque so you will be able to run a motor with a higher kv rating over the feigao. hope this helps

	(#10)
squeeforever RC-Monster Mod Offline Posts: 6,254 Join Date: May 2005 Location: Baton Rouge	07.28.2005, 04:12 PM the thing is, the 7xl has a lower kv rating which means that per volt it will spin less times. the 8l spins 3072 rpms per volt; which if you do the math on 12 cells that would be 44236 rpms. now with the 7xl it would spin 2382 rpms per volt; which on 12 cells would be 34300 rpms. plus the 7xl will have loads more torque which is needed in a large monster truck. the lehners are great motors and i prefer them over a feigao. if your running on 12 cells i would recommend a 2800xl or 3100xl. the lehners are gonna be a little more efficient and have more torque so you will be able to run a motor with a higher kv rating over the feigao. hope this helps Last edited by squeeforever; 07.28.2005 at 04:14 PM.