Originally Posted by pink_sleeve

For you guys running these 540 motors i have a question. I tried a brand new never run 540 6.5 viper motor today geared 17/93 and it lasted literally 4 minutes of a 5 minute qualifier before going over 200 and melting down. No timing was used on the motor or speed control It felt awesome speed wise for the 4 minutes up until it cooked.