RC-Monster Forums - Little cooling help for MM Muggy?

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- - Little cooling help for MM Muggy? (https://www.rc-monster.com/forum/showthread.php?t=10941)

what mods are done on your esc.

the cap should help some , and also put some holes in the case

IMO I would go for what is easy and takes the least amount of work, but gives you the best results. Try adding the cap to the power leads and instal a cheap fan. With those two items you should have a much better setup without compromising speed.:lol:

Quote:

Originally Posted by lydiasdad (Post 157426)

I never understood why so people are against using fans. Even if you are geared correctly, the cooler the esc the better.

I don't know about other people's reasons, but I don't like them because A) adds wiring complexity (albeit small), B) Just something else to go wrong, and C) if you are relying on a fan for reliable operation, then if it breaks/goes bad, you generally don't know it until you thermal.

IMO, fans are for an improperly designed system. With adequate airflow and/or a little extra heatsinking, any ESC should run right. If not, either gearing is too high, battery voltage or ESC current rating is too low for the power you want, or any combination of these.

And this is from someone who doesn't like temps any higher than 30-40*F above ambient temperature.

Quote:

Originally Posted by BrianG (Post 157443)

A) I think the extra wiring is negligible. B) True. C) I agree a fan should not be used to compensate for bad gearing. However, adding a fan to lower the operating temp is always good. Even if the esc is only 30* above ambient a fan might lower it 10-15*. Lower temps means longer component life and more efficiency.

I too like lower temps, which is why I usually add a little extra heatsinking and try to orient the fins so the airflow goes through them. So far, this has worked very well for me...

But hey, to each his/her own, right? :smile:

Its for safety reasons... You could have the most perfect gearing possible yet something could go wrong later on in the run and you not know it and the next thing you know your out $200 or more.

How do you take the case off the MM? Does it just pop off?

Their is two small hex screws holding it on. One behind the capacitors and one on the other side of the MM infront of the heatsink.

I put the low profile Muggy tires on instead of the LST2's. Instant improvement. Now the temps stay good, runtime is 20-25 min but I still have to actually time it now that I'm not overheating.

Note to self: you're not a good enough driver to drive between parking blocks at high speed.:oops: