1/8 buggy mamba max esc overheat ?

[glassdoctor]

What tires are you running? If you have typical 1/8 tires, they are 4.5" and with a little ballooning, you are geared for around 60mph with the 1509... way high unless you are trying to just do some speed passes. Get the 3.3 diffs in it, and drop the pinion a couple teeth. That puts you more like 40mph on the calc which is still fast for a MM/1509 but it's a lot better than 50-60mph

[florianz]

you should add an external bec/ubec, and disable the mm's bec by removing/unplugging the red cable. of course you need some good caps and a fan as well. but that's done quickly. I'm pretty sure the main problem is the build in bec, which is simply not made for 4s and therefore it gets very hot. together with a proper gearing that should be working well. for example, an ezrun 150a has a "switching bec", they don't get that hot on 6s.

I always add some extra caps on my esc's, it gives you some extra protection. they compensate peaks in high voltage.

I never had a problem with dirt on my fans, as almost no dirt gets inside the buggy. you plug the fan into the receiver or connect it directly with the ubec. or get a 12v fan and connect it w/ the battery cables.

[Jason]

I tried the kyosho diff in my buggy ( ratio = 4.3 ) and now the esc temps was cool but I think my 8xl was demagnetized it run cooler and he dont have heavier break power and overheat the esc very fast so I tried my neu 1509 2.5d 2700kv @ 4s it work fine the esc was cool and the batteries too but the motor get hot around 172f I think this can are to small for 1/8 rc's right ? and finaly I run my neu 1515 2.5d 1700kv motor and esc was cool but on 4s the power was not cool its a 5s and 6s motor for sure... later I tried my neu 1509 2.5d 2700kv in my 1/10 e-revo and overheat alot! this can are best for small lightweight rc like traxxas slash or hpi e-firestorm