That makes great sense. I have experienced a thermal shutdown of the ESC on two seperate occasions. I was geared on the tall side but I then changed to a smaller pinion and it hasn't happen since. Thanks for the link to the HPI fan as well. For the moment, I have a matching pigtail that will fit the fan. I will solder the ends to the deans plug on the ESC so it will share the battery power. The fan is rated 7.2v so it should be fine. The only forseeable problem is the fan will run continuously while the ESC is pluged into the battery. I'll see if this does anything for me. Besides, adding the fan gives the layout a more intense, high tech look.