The Engineering Genius of Tamiya's Foam Motor Cover

Tamiya famously includes a foam motor cover with its Super Stock BZ and Dirt Tuned brushed 540 R/C motors. Why do these motors come with this foam motor cover and why don't any other motors? What exactly do Tamiya's foam motor covers do and how do they do it? In this episode of the RC Deep Dive podcast we dig into the fascinating material science of these ingeniously engineered foam motor covers.