New Seaking 180A-R ESC and Leopard 4082 1600Kv

[Bigbore]

I have been running a Titan 29" with 5S2P Zippy LiPo 5000mAh.
I've been using and external BEC and added a water pump for continuous cooling but last week due high temperature of water and air I was able to burn the Lepard 4074 2000Kv. My fault was to run for more than 2 minutes continuosly without checking the temperatures with an X440/3 prop.
The Seaking 180A, that I've been running, was burnt too.
So, I have ordered this new stuff.
Anybody knows this 180A Seaking? It has a label 180A-R, what doest that mean?
IMG_0915.jpgIMG_0916.jpg

This is the motor and I like the back plate where the cable exits and the holes to let some air to cool the winds, it's different from my previous 4074.
IMG_0918.jpgIMG_0917.jpg

Then I would suggest to the other owner of the Seaking 180A ESC to seal this spot, in my burnt ESC some water passed that spot and I know it from the little corrosion I found inside.
IMG_0920.jpg

On the other side there is some kind of stuck rubber, this stuff is from the factory.


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[JackBlack26]

The R is probably for the added resisters. They usually only come with 3. That one appears to have 5.

It's cool that Leopard added those cooling holes. Should keep thing a bit cooler.

As far as the open space between the two cooling ports, there have been plenty of people that use different materials to cool that area as well. I don't think water getting in there is an issue.

[Rumdog]

Not a 5s motor. That's why it failed.

[Boaterguy]

The R is probably for the added resisters. They usually only come with 3. That one appears to have 5.

you mean caps, the things sticking off the side?

[iamandrew]

you sure thats not a 5S motor?
everything ive found on the net shows that 2000 or 2200kv motors that size can handle 5S.
theres new buggy motors like the one in the HPI Vorza which is 2200Kv and runs 2 3S packs in series

[golfito]

hello:
I can ask if I add capacitors to your drive? I think 35v capacitors are
1000 uF.
Connect them in parallel connection?. To achieve 5000uF? . That achieves improved performance or increased security achieved with this modification.
Excuse me please so many questions.
Regards, Hernan

[Boaterguy]

not all 35V capacitors are 1000uF, but you can get some
they should be connected in parallel, it will more be a safety feature than improving performance. capacitors are there to "compensate" for the voltage drop when the cells are under load.

[Rumdog]

boats and cars... not the same.

[Bigbore]

hello:
I can ask if I add capacitors to your drive? I think 35v capacitors are
1000 uF.
Connect them in parallel connection?. To achieve 5000uF? . That achieves improved performance or increased security achieved with this modification.
Excuse me please so many questions.
Regards, Hernan

Yes the caps are parallel connected and are 35V 1000uF like these: http://www.offshoreelectrics.com/pro...k-cap-35v-1000

I've ordered also this Etti ESC Capacitor Bank: http://www.offshoreelectrics.com/pro...d=etti-e035-lv
Because the stock caps are not reliable, the little wire connection between cap and board tends to break.

[Bigbore]

Not a 5s motor. That's why it failed.

You're right! I wanted to try the same ..... and learned by smoking that I need a lower Kv so I'm installing the 1600Kv.

[iamandrew]

No im going to have to disagree with you guys in regards to the "OH thats not a 5S motor" comments
A boat that size with that KV motor should handle 5 S packs no problem
A lot of you guys seem to think that shoving 10S packs in a boat on a 500kv motor is the solution, the only problem you seem to be forgetting is that all these packs are adding weight, so you then stick props that are either too big or too much pitch, then complain about snapping the drive shaft, or crap handling etc or your 2 minute run time.

In regards to the actual reason this guys stuff has blown out, is probably due to not enough water cooling. a water pump should not be needed, and if anything has probably jammed its impeller or somthing like that, thus slowing down the water passing through the components.

[Diesel6401]

No im going to have to disagree with you guys in regards to the "OH thats not a 5S motor" comments
A boat that size with that KV motor should handle 5 S packs no problem
A lot of you guys seem to think that shoving 10S packs in a boat on a 500kv motor is the solution, the only problem you seem to be forgetting is that all these packs are adding weight, so you then stick props that are either too big or too much pitch, then complain about snapping the drive shaft, or crap handling etc or your 2 minute run time.

In regards to the actual reason this guys stuff has blown out, is probably due to not enough water cooling. a water pump should not be needed, and if anything has probably jammed its impeller or somthing like that, thus slowing down the water passing through the components.

I disagree to your disagree a 2000-2200 kv motor on 5s in boating is a fail as you have just seen. reason being is that added amp draw at higher rpm. Watercooling is NOT going to prevent or stop the amp/ddraw surges which are created by the higher amount of rpms. 500kv motors have there place in very VERY large hulls and in those veryVERY large hulls the extra weight is actually needed to keep the hull in the water at higher speeds. Now the size of the hull would be mighty big for a 500kv motor like 50+", in which the cell count weight would not matter at all. Rpm management is very important in boating. Go see how many guys have blown there setups running 1515 1y motor on 5s and 6s going 50+mph there is a lot of water cooling but yet the setups are still failing why? because of the amp spikes!

[Diesel6401]

boats and cars... not the same.

+1 on that, too many guys thinking "i run 6s on my erevo with not problems why does it fail in boating" smh!

[martin]

+2, To many look at their esc spec & because it says 6s or 7s think its safe to use in a boat on say 6s. Unless its something like a 180amp esc its not safe to use 6s in a boat. Amp draws go out the window in boats compared with cars.

[Boaterguy]

+2, To many look at their esc spec & because it says 6s or 7s think its safe to use in a boat on say 6s. Unless its something like a 180amp esc its not safe to use 6s in a boat. Amp draws go out the window in boats compared with cars.

that's why boat ESC's are harder to find, and they are much more expensive, then say an 80A car esc.

[golfito]

Yes the caps are parallel connected and are 35V 1000uF like these: http://www.offshoreelectrics.com/pro...k-cap-35v-1000

I've ordered also this Etti ESC Capacitor Bank: http://www.offshoreelectrics.com/pro...d=etti-e035-lv
Because the stock caps are not reliable, the little wire connection between cap and board tends to break.

Thanks for the replies. I will use a t-180th of 4082 with a 1600kv and 5s batteries. Then with 35v capacitors would be right. He added a 2000uF or need more capacity. I can hardly understand English, but read in a post it is advisable to double the capacity to bring these esc factory.
Is that everything must be calculated according to a lot of variables, but I do not have the necessary knowledge. For that reason I am trying to figure out how to start.

[golfito]

The ESC hobbywing are quite good. At least the car xerun.
Some regained his t-180 stop working after the internal bec? Adding an external bec resurrected the drive?
Apparently these settings in the boat demands a great deal more work to the ESC and batteries in comparison with cars.

[jkr]

I have to say that more caps more breathe for the esc.
If you go for 6s you have to use external bec.
Use 6-6,5mm conectors.
if you can mod the watercooling it would be good.
The leopard uses bearrings for max 39k rpms.

[golfito]

That modifications to the cooling?

[Make-a-Wake]

I ran my 2150kv Leopard 4074 in my 32" Pursuit on 5s for several runs thru the whole 5000 pack...................no problems here. Used an x442.............. thats around 38.000 rpms............not hugely high in my opinion. I now run it on 4s with an m445 for racing with my buddies who have the same exact setups, that way we're all pretty equal.

[iamandrew]

What make a wake!!>?!?!? You cant do that!!!!!

[m4a1usr]

So this thread is sort of a confirmation that the latest Turnigy/SeaKing 180's are arriving with an additional 2 caps for 6S use? Sort of affirms what most have long known that to use the full 6S rating additional capacitance was required. Sounds like someone (factory/distributor?) was listening to online comments or there were enough returns to warrant a change. Encouraging to say the least.

John

[iamandrew]

The last turnigy one that i got, was probably 3 weeks ago, it still has the 3 Cap banks, however it came with set of smaller capacitors wired to the positive and negative, maybe just to stop arcing when connecting the batteries?
I think i would have preferred the 5 caps than the extended smaller set that mine came with, just because its a bit neater.

[Bigbore]

These days I'm water proofing the ESC with 3m Dp270 Clear Epoxy and this stuff need some temperature to polymerize. . . At least 30°C. Also it has a very low viscosity and don't stay were I put it. I'll try to thicken it with these microballoons: http://www.offshoreelectrics.com/search.php

Then my choice of motor depends on the fact that I like to run the boat in open sea when the water is flat but there are always some chops so I think I'll be using bigger props from what I've been running with my previous 2000Kv motor. I've ordered an M445, what speed should it give on 5S and the 1600Kv motor?

[Boaterguy]

The last turnigy one that i got, was probably 3 weeks ago, it still has the 3 Cap banks, however it came with set of smaller capacitors wired to the positive and negative, maybe just to stop arcing when connecting the batteries?
I think i would have preferred the 5 caps than the extended smaller set that mine came with, just because its a bit neater.

the Arcing is the capacitors charging up, so adding caps won't stop the arcing.

[norbique]

I can also affirm that I got my Turnigy 180A ESC with an additional cap board, which has 4pieces of 470uF 35V caps.
So considering capacity it's similar to the added 2 extra 1000uF seen on this Seaking...

[jkr]

That modifications to the cooling?

see https://forums.offshoreelectrics.com/...ooling-upgrade

[golfito]

Thanks for the tip

[Himalaya]

the -R stands for RTR version, supposedly could be found only in factory installed RTR boats. Im wondering where you got it.

Good to see Leopard changed their logo, no more Puma clone.

[Steven Vaccaro]

I can confirm that the new seaking 180's come with an extra cap board attached.