Originally Posted by
Bigshades
Bill, melted plastic around the bullet plugs suggests a problem with the connections. Have you replaced the bullet connectors on your ESC? After so many insertions, they can get dirty/loose, and lose their contact force. If there is excessive electrical resistance in the connectors, they will generate a lot of heat at the plugs.
They are still a nice tight/snug fit, but yes, the 5mm slotted bullets are 6 months old and no longer have a shiny gold plated finish to them anymore. Looking inside the female slots of the battery also show signs of dark corrosion suggesting that the internal connectors on the battery pack itself has also degraded.
I have since ordered the following:
3660-2500KV motor which is 58% of 4300KV (this is reduction of 42% less current draw)
2S --> 3S = 33% increase in voltage
The net speed difference should be (3S/2S) x (2500KV/4300KV) = 87%
So to get the same speed I will need in increase my 15T pinion +13% = 17T pinion with the new setup to get roughly the same speed, while reducing the current draw by 42%
*** EDIT
The 3S battery I have chosen to order is a 6Ah pack which will produce 75.6Wh
The 2S battery I had before was a 7.7Ah pack which produced 64.7Wh
So I should increase my run time by at least 75.6Wh / 64.7Wh = 17%