I at one point had a plan to build a chiller for my intercooler water using a air conditioner similar to the iceless cooling ones sold for a few thousand but just bought a ice maker and large cooler instead. It would work to cool down a motor as well, I was going to build it with a window AC unit, a cooler and a sump pump similar to what this guy built to cooler his computer:
https://www.overclock.net/forum/133-...-chillbox.html