SeaKing 180 ESC...extra cooling.

[ScarabChris]

Yeah I set them both to 3.75, the lowest before zero.

[forescott]

I would get rid of those under hull water pick-ups. They can't work any better than mine.

[ScarabChris]

Believe it or not I get tons of water shooting out the hull discharges. Might just depend on the hull and where you have them mounted.

And the "custom cooling" on these T180s works awsome.

The temps went from 125 one one and 151 on the other down to 100 and 120. Major improvement!

[Brushless55]

Believe it or not I get tons of water shooting out the hull discharges. Might just depend on the hull and where you have them mounted.

And the "custom cooling" on these T180s works awsome.

The temps went from 125 one one and 151 on the other down to 100 and 120. Major improvement!

great job!
still interesting that one is 20* higher?
maybe it a prop issue...

[carlcisneros]

so I take it right down the center of the 180ESC it is completely hollow?

hhhhmmmmmmmm

[ScarabChris]

great job!
still interesting that one is 20* higher?
maybe it a prop issue...

Yes one is still working harder. I made sure the timing was set the same on boat at 3.7. Its the same props so I'm not sure why one is working harder. One motor does start spinning slightly before the other. But the one that was overheating starts after which would lead me to believe the other one is working harder.

so I take it right down the center of the 180ESC it is completely hollow?

hhhhmmmmmmmm

yes, its completely hollow down the middle. Wasted space. The cooling works great. Knocked temps down by 25-30 degrees.

[blackcat26]

Chris did you program the esc's with the Tx or do you have a program card?

[ScarabChris]

With the TX. I put the timing at 3.7 and the LVC at 3.0 on both. But I think I'm going to raise the LVC to 3.7 volts per cell.

[blackcat26]

Timing should be fine with 5deg being max on a "d" wind motor. Is there any way u used a different Tx to program one of them? I think I did this before and maybe it was the different throttle calibration between two Tx's.

[ScarabChris]

Nope, both programmed with the same TX within 30 seconds of eachother.

[Fluid]

A common issue with twins is how the two motors work in turns. The inside motor has to work harder than the outside motor, and the tighter the turns the more the inside motors has to work. This is likely why one ESC is hotter by 20*.



.

[drwayne]

is it the same ESC that gets warmer..? or the location it's installed ( L/R) ?
Have you tried swapping L-R ?

[Brushless55]

is it the same ESC that gets warmer..? or the location it's installed ( L/R) ?
Have you tried swapping L-R ?

That is a great idea!

[ScarabChris]

A common issue with twins is how the two motors work in turns. The inside motor has to work harder than the outside motor, and the tighter the turns the more the inside motors has to work. This is likely why one ESC is hotter by 20*.



.

I would normally agree with you, it makes perfect sense because it is the inside motor if I were on a circle clockwise course. But I wasn't running circles. I was running in a narrow canal and basically just making high speed passes in a straight line. I was shutting down to idle speed when urning around.

Ironically the same motor with the hot ESC is the same one I lost the prop and shaft on. Unrelated I'm sure.

I'm replacing the stupid solder in stub shafts and flex with the one piece Hughey shafts. I'm a little pissed I lost a shaft and 70 dollar prop just as I was getting her dialed in.

is it the same ESC that gets warmer..? or the location it's installed ( L/R) ?
Have you tried swapping L-R ?

I have not switched them yet. I was testing the temps and top speed then I lost a shaft and prop so I really didn't have time to dive into the ESC issue further than the extra cooling. Which I'm very impressed with the result. 30 degrees cooler, thats freakin great!

I think I'll pat myself on the back....LOL

[Brushless55]

possible bind on the hotter side?