[ilpufxit]

I'm running 5s on a modded MM, I've been trying to finish a 20 minute race in my 8b without overheating the esc. I've tried a 1512 2.5d (2050kv), it's too fast on 5s even at 11/46 esc thermals. So, I thought that a lower kv motor should solve the problem. I ordered a Feigao 11xl (1390kv). I was surprised how fast it is at the same gearing, seems almost the same as the Neu. I was expecting a drop of 660kv would make a bigger difference. It also thermals the esc. Am I missing something? How do I drop the esc temps low enough to race? I can do better on 4s with the Neu, it's a bit slower and cooler. I thought that if I could run 5s and lower kv, I'd get more runtime and less heat but something doesn't equate?? Do I just need a bigger esc? Btw, I ran a Quark 125b on the same setup with the Neu, it lasted a little longer but thermalled before the end of the pack.