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I have been upgrading my blackjack 24 into a psychotic monster and I believe my current ESC is holding me back. But when I switched to the Seaking 180a esc I had amazing immediate results followed by utter disappointment. Here is some background:
I am running a leopard 3650 2750kv motor (I also have the 2450kv version and the 3660 2050kv) on an upgraded engine mount, using the blackjack 29 flex shaft and an upgraded strut. I am primarily running it on 4s & 5s (Pulse 5s 45c 4500mah) with 38-40mm 1.6 pitch props. In an effort to keep her cool, I also put in 3 additional thru-hull water pickups, so I am running 2 coolant lines to the motor and esc. I installed wider tubing and wider exhaust outlets.
I expect that my motor is demanding more amps than my esc can deliver and that it could fail any day so I ordered the 180a Seaking. I also upgraded all my connections, series connecter and wiring to 10 gauge. The esc worked fine initially on 4s and I could tell there was more burst from the same batteries. After running 4s for a few mins I switched to 5s. The first pass was AMAZING! I could not believe the additional power the motor put out, but before I could even do my second pass the esc cut to half power. I brought the boat in and checked temps. The esc and motor were barely warm. I checked voltages and they were close to 4 volts. My lvc was set at 3.4
I had the esc reprogramed just in case and I checked the timing and lvc to make sure they were set right. Second try, same thing. Tried a different battery (5s 25c 4200 mah), same thing 1 pass and it cut. Went back to 4s and that didn’t work, neither did 3s. I put my Seaking 120a back in the boat and it has been running fine for the last several times out. Maybe I should be content there but with the additional power I saw out of the 180a I want to keep trying. I sent the 180a back and Steven tested it running 100amps for 10 seconds with no issue.
What do you all think defective esc? Try a different brand? I expect some comments that my KV is too high but I tried to see if the esc would work on the 2050kv and 2450kv, no dice. Any help would be appreciated!
I am running a leopard 3650 2750kv motor (I also have the 2450kv version and the 3660 2050kv) on an upgraded engine mount, using the blackjack 29 flex shaft and an upgraded strut. I am primarily running it on 4s & 5s (Pulse 5s 45c 4500mah) with 38-40mm 1.6 pitch props. In an effort to keep her cool, I also put in 3 additional thru-hull water pickups, so I am running 2 coolant lines to the motor and esc. I installed wider tubing and wider exhaust outlets.
I expect that my motor is demanding more amps than my esc can deliver and that it could fail any day so I ordered the 180a Seaking. I also upgraded all my connections, series connecter and wiring to 10 gauge. The esc worked fine initially on 4s and I could tell there was more burst from the same batteries. After running 4s for a few mins I switched to 5s. The first pass was AMAZING! I could not believe the additional power the motor put out, but before I could even do my second pass the esc cut to half power. I brought the boat in and checked temps. The esc and motor were barely warm. I checked voltages and they were close to 4 volts. My lvc was set at 3.4
I had the esc reprogramed just in case and I checked the timing and lvc to make sure they were set right. Second try, same thing. Tried a different battery (5s 25c 4200 mah), same thing 1 pass and it cut. Went back to 4s and that didn’t work, neither did 3s. I put my Seaking 120a back in the boat and it has been running fine for the last several times out. Maybe I should be content there but with the additional power I saw out of the 180a I want to keep trying. I sent the 180a back and Steven tested it running 100amps for 10 seconds with no issue.
What do you all think defective esc? Try a different brand? I expect some comments that my KV is too high but I tried to see if the esc would work on the 2050kv and 2450kv, no dice. Any help would be appreciated!
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