Twin coolers

[denboy01]

Twin motor coolers, too much cooling?

[tlandauer]

There is never too much cooling, but the question is why two when you can use a longer single cooler? This arrangement is not that efficient, no cooling between the coolers and you have four "O" rings , double the chance that there might be a leak.
What length is your motor?
I don't mean to criticize your ingenuous idea, just saying that there is always another side of the story.

[denboy01]

Motor is 50mm, just had a spare cooler to play with, but I'm with you on your thinking.