Originally Posted by
Billy
Thanks that is what i was thinking as well!
This was my point in my original response. I never seen an rc model fan set to pull air away that worked better at cooling then pushing air onto the component you want to cool.
Every ESC I've ever used you push air into the heatsinks because the fans don't pull air out worth a crap.
Ditto for motor fans. just do a simple experiment. Run it in the pull air from the motor configuration, measure temps. Then setup the fan to push air into the motor and check temps.
I'll bet you a dollar the temperatures are lower when you push air onto the component you want to cool.
Its opposite of what you think. Pulling hot air away from the already hot components does nothing for cooling.
Introducing cooler air onto the component by pushing air onto the component cools it more effectively.