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Old 11-05-2008
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CAClark CAClark is offline
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Default Acceptable Temperatures?

Ok, here is what I have in my Durga:

LRP AI Pro Reverse ESC
LRP Gt3 12x2 motor
4500mah Stickpack

Now the ESC is soldered direct to the motor. The ESC to battery now has deans connectors as the tamiya jobbies melted.

So I gave it literally a minutes speeding in the car park outside my apartment, and the motor & motor to esc wires are so hot that the cable tidy spiral stuff melted to the wires.

Is this kind of temperature normal in such a short run?

Cheers!
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Old 11-05-2008
Jonny_H Jonny_H is offline
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What gauge wire are you using? 14 SWG, or even 12 SWG (thicker) is usually a good idea.

How hot is the motor itself? Can you keep a finger on it for a few seconds?

What gearing are you using (someone else with a Durga will have to confirm), and how much timing have you set on the motor?
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Old 11-05-2008
TheNinj TheNinj is offline
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uh-oh... Sounds like someone has melted yet another set of wires!

Before I put my 8x1 turn motor on mine and subsequently melted the tamiya connector to the ESC, my 17x3 motor would get the wires really hot, to the point of discolouring them. I would suggest not using any plastic wire tidy type setup as it's bound to end in tears!

Even in my Hotshot the wires get pretty warm and thats only a Tamiya sport tuned.
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Old 11-05-2008
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Our first propper car, a belt drive, 4WD buggy, a Yoke MX4BC would overheat like mad, took a long time for us noobs to find the rear diff had gone, I would look at all the drive, car should roll like a hotwheels toy when the motor is not in.
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Old 11-05-2008
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I,m running a mamba max 4600 with a 19t pinion & 4600 stickpacks,Durga runs sweet and i had no problems in the heat at Coventry today.
Double check your diffs, i melted mine once because they were not tightened properly.
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Old 11-05-2008
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Quote:
Originally Posted by JCJC View Post
Our first propper car, a belt drive, 4WD buggy, a Yoke MX4BC would overheat like mad, took a long time for us noobs to find the rear diff had gone, I would look at all the drive, car should roll like a hotwheels toy when the motor is not in.
It does roll smoothly, and I tightened the front diff a little, but that all still tuens free as well.

Quote:
Originally Posted by TheNinj View Post
Even in my Hotshot the wires get pretty warm and thats only a Tamiya sport tuned.
Yeah, but there's hot, and then there's hot

Quote:
Originally Posted by budgio View Post
I,m running a mamba max 4600 with a 19t pinion & 4600 stickpacks,Durga runs sweet and i had no problems in the heat at Coventry today.
Double check your diffs, i melted mine once because they were not tightened properly.
As I mentioned above, they diffs seem fine as far as I can tell.

Quote:
Originally Posted by Jonny_H View Post
What gauge wire are you using? 14 SWG, or even 12 SWG (thicker) is usually a good idea.

How hot is the motor itself? Can you keep a finger on it for a few seconds?

What gearing are you using (someone else with a Durga will have to confirm), and how much timing have you set on the motor?
Not sure of the wire gauge, but the motor to esc is the wire prefitted to the esc. And the design of the LRP ESC looks like you can't easily shange them, so I would assume it should be good as it's rated to motors over 10 turns.

I'll have to run it again tomorrow and then check the motor temp itself.

In terms of gearing, I have the standard spur gear, and had a 23t pinion, which this time I have replaced with the smaller one.

Cheers!
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