Funny you posted this, as just today i picked this up on my way home. https://www.smalladdictionsrc.com/ecopower-30x30x10mm-high-speed-high-volt-cooling-fan-21-000rpm/
Same size as the stock esc fan, fits under the cover like oem but spins twice as fast. Things rips ,can feel the air moving if...
My hobbywing 8bl150 and the esc in my rival mt10( rebrand hobbywing) both over heat. Motor temps and gearing are stock, and both do it with temps as low as 65f degrees. Do i just upgrade fans or should i add another heat sink?