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squeeforever · 08.05.2006, 12:21 AM

Yes, a 7XL is hotter than a 8XL. 8XL is hotter than a 9XL, etc. It just depends on how many cells your gonna run. To figure that out, multiply the total voltage times the KV of the motor. Thats your RPM's. Try to keep them around 35 to 40K.

	(#11)
squeeforever RC-Monster Mod Offline Posts: 6,254 Join Date: May 2005 Location: Baton Rouge	08.05.2006, 12:21 AM Yes, a 7XL is hotter than a 8XL. 8XL is hotter than a 9XL, etc. It just depends on how many cells your gonna run. To figure that out, multiply the total voltage times the KV of the motor. Thats your RPM's. Try to keep them around 35 to 40K.