boat cuts out at wot

[Indiana Spartan]

the spartan with the new castle electronics cuts out after running WOT for a second or two.
It is hitting 55.6 on the GPS running a x447 and .078 wire drive. after it peaks out is shuts down for a split second then kicks back in again. All batteries are newer... what could be the problem?????

[Diesel6401]

the spartan with the new castle electronics cuts out after running WOT for a second or two.
It is hitting 55.6 on the GPS running a x447 and .078 wire drive. after it peaks out is shuts down for a split second then kicks back in again. All batteries are newer... what could be the problem?????

What batteries and how many cells you running? Could be a few different things.

[m4a1usr]

Check your Speedo LVC settings. Sounds all too familiar.

John

[Indiana Spartan]

i am runnning Gen Ace 5000mah 40c 3s. Other than running through the lipo set up for the esc, what way do you check the low voltage setting. Fairly new to rc thanks

[m4a1usr]

i am runnning Gen Ace 5000mah 40c 3s. Other than running through the lipo set up for the esc, what way do you check the low voltage setting. Fairly new to rc thanks

Please describe what "New Castle Electronics" means? You mean a a speedo? (ESC)? LVC settings can and will present the very problem you describe.

John

[oscarel]

i am runnning Gen Ace 5000mah 40c 3s. Other than running through the lipo set up for the esc, what way do you check the low voltage setting. Fairly new to rc thanks

It should've come with instructions. If not they should be on the Traxxas website.

Please describe what "New Castle Electronics" means? You mean a a speedo? (ESC)? LVC settings can and will present the very problem you describe.

John

They now come with Castle motor and esc if I'm not mistaken.

[Indiana Spartan]

it is the castle vxl6s esc and the castle 1420 1800 kv motor. The spartan was re-released with castle eletronics

[Diesel6401]

it is the castle vxl6s esc and the castle 1420 1800 kv motor. The spartan was re-released with castle eletronics

Well that's one issue, 1800kv motor on 6s is a whole lot of rpms and you are swinging a mighty big prop. The setup you are running does not sound very reliable. The esc maybe hitting the lvc at peakcamp draw like John said, those are good batteries, but may not be able to handle the load you are putting on them or the esc maybe hitting some type of shutdown protection. The setup you have listed though does need some work. I think a smaller prop and/or drop the cell count to 4s/5s would be a good starting point. 6s on a 1800kv motor is not a good thing though IMHO...


* Glad Traxxas went with the Castle system, but a 1800kv motor and still recommending 6s use is just another mistake Traxxas has made with this boat..

[oscarel]

* Glad Traxxas went with the Castle system, but a 1800kv motor and still recommending 6s use is just another mistake Traxxas has made with this boat..

I also noted this when they were testing it and I said something about it, oh well.

[Indiana Spartan]

deisel that makes the most sence I am pretty sure the esc is set to lipo mode, I will switch back to a x642 prop and see how that goes. thanks

[stadiumyamaha]

ditto. I wouldn't run a 1800kv on more that 5s and that's a way big prop to spin at that rpm. Also check to make sure no wires de soldered.

[Diesel6401]

I also noted this when they were testing it and I said something about it, oh well.

It's clear that Traxxas isn't taking any input from seasoned voters with this boat. Sounds like they are try to take what they know in the car game and use it on boating which we all know is NO NO... recommending 6s on that setup, having a esc with "training" mode which cuts the power by 50% and thinking running like that will last, not to mention adding reverse to a boat with a flexcable and over rpm'd setup is a nightmare waiting to happen... Traxxas lost some cool points with me on this one!

deisel that makes the most sence I am pretty sure the esc is set to lipo mode, I will switch back to a x642 prop and see how that goes. thanks

I would highly HIGHLY suggest you lower your cell count on that setup also. I am sure that is not the answer you are looking for, but take it from a guy who has burned his fair share of things up and have been boating for a few years the 1800kv + 6s is not the best combo for sport running. Those rpms are SAW racing territory, your close to 40k unloaded rpm's. Your target range for sport boating is high 20k to low 30k.




I found the manual and it does not mention changing the actual value of the lvc, it just is either on or off. It also doesn't mention what the default value is. http://traxxas.com/sites/default/fil...n-Owners-C.pdf

* After reading this manual for the first time ever I think I will inform people to NOT read the instructions. It's truly clear Traxxas has A LOT to learn about Fast Electric boats.

[Diesel6401]

ditto. I wouldn't run a 1800kv on more that 5s and that's a way big prop to spin at that rpm. Also check to make sure no wires de soldered.

+1 on that...

[GeoVW72]

That prop is way to big to run on 6s.
The new castle stuff is a full Castle esc and you can hook it up to a castle link and program it. The lvc is already set at 3.2v and if it was going to cut-off it would not keep running. Maybe it is an over amp cut out?
Agreed, 1800kv isn't a good idea, as specially with a small 14xx series motor.

[Hot wire]

I am swinging a p220, is that to much prop to? My temps never get above 110 on speedo or motor on 6s 5000 50c.