Etti 150 getting hot, but why?

[Jesse J]

Ok, now an application question. I just brought my DF33 mono in from a 2-3 min test run and the Etti 150 was 160F and shutting down. The set up was my LOW DRAW test run:

Neu 1521/1.5D, 4S2P 4800 mah (9600 total) and a..... X442 prop!?!? I did maybe 6 laps in our maybe 70 yard pond, she was probably 35+ mph. But I don't get why it was getting hot so fast? The motor was not even 80F....

Yes water cooling, yes it is the BEC version, yes cable was well lubed and spinning freely, yes the motor was aligned perfectly with the stuffing tube, no I didn't have an external rx battery (I have done that before) ..... :confused2: :confused2: :confused2:

Is it a function of running 4S in parallel? What am I missing? Could the darn thing be programmed wrong? I found it far from plug and play.

Is there a way to reset it and start over?

[EPower]

Ok, now an application question. I just brought my DF33 mono in from a 2-3 min test run and the Etti 150 was 160F and shutting down. The set up was my LOW DRAW test run:

Neu 1521/1.5D, 4S2P 4800 mah (9600 total) and a..... X442 prop!?!? I did maybe 6 laps in our maybe 70 yard pond, she was probably 35+ mph. But I don't get why it was getting hot so fast? The motor was not even 80F....

Yes water cooling, yes it is the BEC version, yes cable was well lubed and spinning freely, yes the motor was aligned perfectly with the stuffing tube, no I didn't have an external rx battery (I have done that before) ..... :confused2: :confused2: :confused2:

Is it a function of running 4S in parallel? What am I missing? Could the darn thing be programmed wrong? I found it far from plug and play.

Is there a way to reset it and start over?

i would say programming, no reset just reprogram it
Adrian

[Doby]

Make sure your timing is set at low, or normal.

[Jesse J]

I reprogrammed it for lowest timing possible, lowest KV, 4S, still damn hot after <1min running. Does this sound like a saw setup?
New 1521 1.5D (1900 kv), 4S2P (4800 mah, 25C each), X646 prop and this Etti 150 with BEC...

If this does not sound saw, then could somebody send me a copy of their instructions (mine got torn on the last option, kv setting). Here is how I tried to set it up (not sure if it really is programmed):
1. Battery type: 4 cells
2. Throttle option: low starting power (it actually shot out of the hole like it was full throttle)
3. Braking: no braking
4: rotor rotation option: 1 I assume it is a typo and it means counterclockwise
5: Timing: 2deg
6: PWM options: 8K

I did notice that mine has one cooling tube, while the picture on OFE has two... should it have two?

Thanks, I am sure these are good, just need to figger em out.

[knpc]

Is that temp on the caps or the board, I always check both but I'm not sure what the max should be for each.

[EPower]

I reprogrammed it for lowest timing possible, lowest KV, 4S, still damn hot after <1min running. Does this sound like a saw setup?
New 1521 1.5D (1900 kv), 4S2P (4800 mah, 25C each), X646 prop and this Etti 150 with BEC...

If this does not sound saw, then could somebody send me a copy of their instructions (mine got torn on the last option, kv setting). Here is how I tried to set it up (not sure if it really is programmed):
1. Battery type: 4 cells
2. Throttle option: low starting power (it actually shot out of the hole like it was full throttle)
3. Braking: no braking
4: rotor rotation option: 1 I assume it is a typo and it means counterclockwise
5: Timing: 2deg
6: PWM options: 8K

I did notice that mine has one cooling tube, while the picture on OFE has two... should it have two?

Thanks, I am sure these are good, just need to figger em out.

I think that setup should be fine I run
KB45 8Xl 1600 Kv
6S/4500 20c 1P
Abc H5 similar to X655
Etti 150 race no bec

1. Battery type: 6 cells
2. Throttle option: low starting power (it actually shot out of the hole like it was full throttle)
3. Braking: no braking
4: rotor rotation option: 1
5: Timing: 2deg
6: PWM options: 8K

after 2 1/2 3 minutes runs esc is just warm
(I did notice that mine has one cooling tube, while the picture on OFE has two... should it have two?) should have two cooling tubes can you put a picture up ?

[NorthernBoater]

How wet is it running?

[Jesse J]

medium, and real wet on the turns. Granted it is a small pond, and I have to turn a lot, but 30 seconds to get 150F? I am not encouraged to go to a bigger pond where I can let it hang out, until I am sure it won't fry in 2 minutes flat.

If I have it programmed right, then this thing needs serious plumbing to water cool it...

[EPower]

medium, and real wet on the turns. Granted it is a small pond, and I have to turn a lot, but 30 seconds to get 150F? I am not encouraged to go to a bigger pond where I can let it hang out, until I am sure it won't fry in 2 minutes flat.

If I have it programmed right, then this thing needs serious plumbing to water cool it...

Shouldn’t get that hot i have single water pickup going into the motor first then in the esc :thumbup1:you have a problem there

[Jesse J]

The caps are the hottest. here are some pics of the ESC and general innards set up. If this is not how it should be, I think I know who to go to.

I have a vid of the session uploading will post shortly.

[Jesse J]

here is vid:
http://www.youtube.com/watch?v=gW5BN17yLx4

[EPower]

The caps are the hottest. here are some pics of the ESC and general innards set up. If this is not how it should be, I think I know who to go to.

I have a vid of the session uploading will post shortly.

Where did you buy the esc from you can see here that it does have one on each side of the esc
http://www.offshoreelectrics.com/proddetail.php?prod=etti-esc-race-150-BEC

[Jesse J]

I got mine from Jeff, I need to check with him to see what to do.... Still, not convinced that is only problem.

[Doby]

Only one cooling tube,,,weird, mine has two. I wonder how that happened??

[knpc]

The layout looks similar to mine. Does that etti just have cooling pass through on one side, Its on both sides of mine. Don't know how much that matters.
Its seems that it would be difficult to get it to run dry at 35mph with this size hull. I actually got mine to 56mph yesterday (personal best), but it took some fine tuning to get it there. These are great hulls.

[Jesse J]

Dang, 56 is respectable. I have a pair of 5S waiting for me to get this ESC to chill out. Still not sure what to do....

[NorthernBoater]

here is vid:
http://www.youtube.com/watch?v=gW5BN17yLx4

Is that a typo in the description where it says x656 should it say x646. Even an x646 seems like a lot. I run 4s on an 8XL with both either x640 and x636 and rarely see temps about 120-130. It looks like it is running fine in the video. What was the temperature of the pond? Warmer water will provide less cooling. Did you see water coming out of the exit nozel?

[knpc]

It usually runs 50-52mph, I just desided to air it out a bit and see what I could get out of it. I don't think I could go that speed with other boats in the water. It was with a 1515 1y 4s2p and an m445

[Jesse J]

yes typo, X646. I will try some smaller props, especially when I go for 5S. But even on 440 it was getting hot. Next try will be a K45 (lost my X and M445) time for another order from Egneg.

and yes it was peeing fine.

[detox]

I learned that caps can get veryhot...up to 195 degrees.

[detox]

Maybe you should also use the ETTI cap board.

[Jesse J]

I think that is very wise advice. Is it easy to add after the fact?

[Blackjack-sven]

How long have you been running this setup?

[Jesse J]

Well the motor mount came in the mail this afternoon and I was able to make three runs before dark (I know people have complained that my pond is too close - 3.7 min walk).

[NorthernBoater]

Do you have two water pickups or is the line split between the motor and ESC?

[line6]

The caps are 160? or is the hottest spot on the board 160? my hydra 120 comes in at caps around 140-160 board 120ish in my delta with a 8XL. I talked to the guys at castle and they said that those temps are fine. That i should really worry if the caps get over 200. but you say yours is shutting down. that dont sound good. how long till you get it back to shore? i have noticed the caps will cool off a lot faster then everything else.

[Blackjack-sven]

I talked to the guys at castle and they said that those temps are fine. That i should really worry if the caps get over 200.

***caution***..........................JUST A WARNING.........................***caution***

From my own experience, NEVER let the CC ESC's get above 180 as they will go :flashfire: .....I've had two of them go by "gearing up" my vehicles too much. I listened to the guys at CC as well and thats what happened to me.

[Chilli]

I'm running the Etti 150 (no BEC) in a Titan 33. 1515 1y, X640. Also curious about board temp versus cap temp. Running 4s2p 4500, motor and batteries are in the 130's Large caps running mid 150's. Thats shooting right on one of the large caps with no shrink wrap. Board is in the 120s. Am I stressing the ESC?

[Blackjack-sven]

I'm running the Etti 150 (no BEC) in a Titan 33. 1515 1y, X640. Also curious about board temp versus cap temp. Running 4s2p 4500, motor and batteries are in the 130's Large caps running mid 150's. Thats shooting right on one of the large caps with no shrink wrap. Board is in the 120s. Am I stressing the ESC?
With the experience I have with CC, NO. I typically run at 160-165

[line6]

***caution***..........................JUST A WARNING.........................***caution***

From my own experience, NEVER let the CC ESC's get above 180 as they will go :flashfire: .....I've had two of them go by "gearing up" my vehicles too much. I listened to the guys at CC as well and thats what happened to me.


ya i thought the same thing i don't like them getting over 160. they told me that they are rated up to 225.

[Jeff Wohlt]

Jesse, I will write Dee and find out about the cooling. That is hot but the shutting down issue needs adressing. As far as I know these are the newest he has but will confirm and ask him why so hot. Prop is pretty big but you also need to air it out and run full throttle if you can.

[line6]

I'm running the Etti 150 (no BEC) in a Titan 33. 1515 1y, X640. Also curious about board temp versus cap temp. Running 4s2p 4500, motor and batteries are in the 130's Large caps running mid 150's. Thats shooting right on one of the large caps with no shrink wrap. Board is in the 120s. Am I stressing the ESC?

I hope not cause that sounds just like mine.

[knpc]

My board is usually 110-130 deg f and my caps run 20-30 deg hotter. From what you guys are saying that is perfectly ok.

[Brod]

Prop is pretty big but you also need to air it out and run full throttle if you can.

Jeff is right,these brushless esc's dont like running less than full throttle,more heat will be produced at lower throttle.As you are using a small pond it looked like most of your running was as such.
My Etti gets hot too running the same on a crazy fast setup which cant be run fast for long periods.
Perhaps the Etti is quite extreme in this area,my converted watercooled Kontronic esc.runs very cool at all throttle ranges,but is designed as such.
Brod...

[focused]

Shorten your battery and ETTI esc wires they are to long .

My Tsunami has a KB45XL8 , 6s Zippy H 5000mah lipo , 45mm K prop , old ETTI 125amp 2-7s lipo version , everything getting warm but not HOT , speed 85km/h by Gecko 101 gps.

I keep the wires very short from the lipo tot the ESC after the ESC to the motor it doesnt matter but keeping it short before the ESC very is important , maybe the old ETTI version can handle it better then de new ones thats why ETTI maybe came up with the powerbanks .


Michiel.

[Jesse J]

Cool. I agree air it out, have been working on that one. Am pretty limited on battery placement, but can still work with strut angle.

so it is sounding like people think a 42mm prop is the biggest I should go on this?

Right now I have one water line going ONLY to the ESC. The motor was not even 100F, so to see if I needed cooler water to cool the ETTI, I tried just running it through the ESC. I am thinking possibly combination of 1) poor cooling, 2) prop size and 3) small pond/lots of throttling may have contributed to the tendency for this ESC to run hot.

I am thinking of making a water cooled base and thermal epoxying it down, so the whole board is in contact with cooling, not just one edge. To me one of the weak points of this ESC.

I will try again this morning with X642, one batt, and higher strut angle. This ought to test the items above, then see if I can keep at full throttle during the run.

Great thread, thanks guys. These new products deserve the scrutiny we put them through. If they survive here, then its a good bet they are worthy products.

[detox]

Boat appeared stable , but wet. Running the boat tight/wet like that can heat things up on a small pond like that. Lots of on/off throttle is a bad thing also.