Thermal Issues with the New Traxxas Spartan

[Brushless55]

........

Any thoughts on this Darin?

[Darin Jordan]

Any thoughts on this Darin?

Nothing that hasn't already been considered or said before.

[T.S.Davis]

Darin.....ya coward. haha

A 4 minute Q mono that runs 50 right out of the box and doesn't burst into flames? Sounds like a perfect setup.

Any longer than that is unrealistic for an electric boat IMO. Especially one that's been marketed as ready to race. That's just me though.

How hot is hot? Do you have temps or is the speedo thermalling and dialing down the power? It could be that it's the voltage cut off after 4 minutes. My kids Slash drops the power when the voltage gets too low. If I run any of my Q sprint boats for 4 minutes they'll go thermal nuclear.

[Diesel6401]

Your untimes are too long. 4-5 minutes from what I'm presuming is 6s1p.. Cut the runtime down and check temps throughout the run. The REAL problem is a 540xl can in a 36" mono. It just isn't quite enough.

Doesn't Traxxas have a deal with CC, like they did with their e-revo's... They should have stuck a 1518 or 1520 in the hull from the beginning. Could have worked a deal with CC before they started the super discount deal to get rid of all the 1518's or 1520's. Just a thought. The plastic hull prob wouldn't have survived those motors though

[JimClark]

[Alexgar]

to small and not eff motor

[Grimracer]

[Jeff Wohlt]

Many times, running higher speeds mean less drag and better efficiency.

[LarrysDrifter]

I love the 40 x 82 1500 Leopard motor.I have 2 of them.One was in my 37" cat and the other in a 33" DF copy.Both boats ran awesome on 6s with way more than 5 minutes of runtime.I know a 33 isnt a 36,but 3" shouldnt matter that much with an efficient motor.This motor has my vote for the Traxxas boat.

[Rumdog]

But, then youre up to $500.00 for a cheesy plastic boat..

[LarrysDrifter]

Yep.I wouldnt do it either.Run the toy boat on the batteries it comes with and get an FG hull for speed and the build it your self experience.

[LarrysDrifter]

And Im a Fast Electric Adict now too!Previous post brought me to 1,000.

[Doug Smock]

Are you running the stock plastic prop? Is the boat running wet? Any video?
While I agree the motor is a bit small for a mono that size you can probably land on a prop that will make it happy.
Doug

[djmaincheese]

Hey Doug
Yeah still running the stock prop 42mm X 59mm. What do you mean by "wet" Water in the hull?

I only have some short clips of it running in training mode, I will try get a video from full charge to thermal shutdown and we will see how long she lasts. I may unplug the heat sensor from the rx and use a temp gun to get an actual reading!

What about a more efficient aluminum cooling jacket or that aluminum tubing that wraps around the motor. I don't think the rubber jacket they supplied does a good job of keeping it cool.
I guess it's just going to take a bit for some real world testing with different props, batteries and possibly motors to get this thing running great.

[Doug Smock]

By "running wet" I mean does the boat have a lot of wetted surface? The wetter the hull runs the higher your motor temps will be. A free running boat will be faster and run cooler. I'd wait on the water jacket for now. Have you verified that the water cooling is working?
We'd be interested in seeing some video of the boat running full speed back and forth in a straight line. Some transom pics would help too.
Try not to run it till it thermals.
Doug