External cooling for my T1 controller

After reading all about the different motor controllers it looks like the old T1 suffers from heat build up due to using larger motors than they were designed for. If that is the case would an external cooling source be of any benefit? It wouldn’t be too difficult to cut a round hole in the case over the thermisters and add a computer like cooling fan. Any thoughts?

Let us know how it works, the Zivan Charger uses a similar set up. Take pictures.