Originally Posted by
marcos graveyar
Man, we must be in the dark ages here, we race the kit TEU104BK speedo and black can motors.

It's not the esc, it's the Blackcan. I haven't even seen one for years. There are better, cheaper, and faster "can" motors available. Every so often, Tamiya produces a really bad product and the Blackcan is one of them. Usually, they will discontinue the product, but they didn't in this case.