9xl and mm heat...
 

ive had my bl revo for about 2 months now and ive very pleased with it.. but i like running it for as long as the pack last but my motor tends to get kinda hot (140) i have the mm on lowest timing settings and my gearing is 18,38 locked in 2nd.. is thier anyway to cool it better?? i have the rc monster heatsink and im looking for some good heat transfer paste hopefull this will help with the heat...

and btw thank all of you for your amazing help without it i would never of had this fun in this hobby:party:

140*F really isn't all that bad TBH. The XL motors will get kinda hot no matter what you do simply because they aren't as efficient as the higher-end motors.

Even though a hot motor/cool ESC usually means undergeared, you could try gearing down a tad and see if that helps.

I've just gone with a couple of 25mm fans screwed into the HS to help... Self tapping wood screws actually did the job...

try using these http://www.radioshack.com/product/in...&tab=techSpecs

They are 12v - 5v might be easier and then you can run off of the RX...

The only trouble with using 5/6v fans is that they tend to require more current than their 12v counterparts (assuming same size and airflow ratings). Not a big deal unless your BEC/UBEC is already stressed supplying power to high power servo(s).

i ran that fan on my hpi sprint 2 and ran it off the rx. and worked great.