Quote:
Originally Posted by killjoyken
BrianG, I really don't understand your hatred (and it is a hatred!!) of fans. Placing a fan on a heatsink drops temps by 20-30F. Cooler is more efficient, correct? Why is this bad?...
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I don't hate fans....unless they are used where they don't belong. I use fans in my PC (although I'd like to get rid of these). I use fans to keep
me cool. If the fans fail in either of these, I can easily tell right away. But neither of these are subjected to the very harsh conditions (vibration, impacts, debris) these vehicles are subjected to.
I have always been of the opinion that a
properly selected and geared system should never see high temps. None of my setups use fans (even my two Quarks) and I haven't seen temps over 130*F. The only exception is my CRT.5 but that's because the 4600 motor is simply too small for the truck (I get temps around 150*F, but that's too high).
Also, if you are
relying on a fan to keep your system operational, then that is just a recipe for disaster considering that it is sometimes difficult to know when a fan fails until it is too late.
Usually, mechanical components break first, and fans are no exception.
Besides, you already have a source of flowing air because the vehicle is MOVING (usually at a decent speed). A little ESC mounting fore-thought and maybe a little extra heatsinking is just as good as a fan without the hassle and risk.