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05-06-2010, 08:58 PM
| #1 |
| Rock Crawler Join Date: Oct 2009 Location: Wasilla, Alaska
Posts: 852
|  Heat sink for mamba 5700?
Anyone know of a heat sink for the 5700, im running it in my slash 4x4 with a 3 cell and goes into thermal shutdown after about 15 min of hard running.
Last edited by AkFordfan; 05-07-2010 at 01:43 AM. |
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05-06-2010, 09:40 PM
| #2 |
| Official Cook of the ECC   Join Date: Dec 2005 Location: Hawthorne, Florida
Posts: 2,653
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Might try dropping a tooth or two on the pinion. What gearing are you running now?
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05-07-2010, 12:36 AM
| #3 | |
| Rock Crawler Join Date: Jan 2008 Location: Knoxville
Posts: 555
| Quote:
if you need a heat sink something isn't right, most likely you are geared too high for the motor. In my opinion the 5700 is not a good motor for the slash, specially on 3s. Slashes really like the traxxas 3500kv motors, or an equivalent sized can. | |
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05-07-2010, 01:18 AM
| #4 |
| Rock Crawler Join Date: Oct 2009 Location: Wasilla, Alaska
Posts: 852
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Its the stock 13 tooth with the 54 tooth spur. It does haul a#$, it will leave over 10ft of black marks from a dead stop. not bad for a 4x4
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05-07-2010, 08:12 AM
| #5 |
| RCC Addict Join Date: Apr 2009 Location: Token's life matters
Posts: 1,836
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I would drop it about 3 or 4 teeth. My stock vxl in my 4x4 slash gets warm on 3s. The Mamba Max and 5700 in my sc10 gets pretty warm on 3s.
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05-08-2010, 10:16 PM
| #6 |
| Rock Crawler Join Date: Oct 2009 Location: Wasilla, Alaska
Posts: 852
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Well i figured out why it was getting so hot. I was out playing with it today and pulled a couple wheelies when it just stopped, but i still had steering. went and picked it up and smoke started pouring out from under the body, as i was ripping the pins out more smoke started coming out. something in the esc decided to let go and blew a hole in the side of it, there was solder everywhere and black goo  and this was what i was left with. It also melted the solder holding the wires in. So now im looking for a new esc, any suggestions? Last edited by AkFordfan; 05-08-2010 at 10:19 PM. |
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05-08-2010, 11:56 PM
| #7 |
| Quarry Creeper Join Date: Mar 2009 Location: Peoples Republic of Kalifornia
Posts: 240
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Were you running a fan with your esc?
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05-09-2010, 12:42 AM
| #8 |
| Rock Crawler Join Date: Oct 2009 Location: Wasilla, Alaska
Posts: 852
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No, local shop didnt have one, this was after about 5 min today  |
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05-09-2010, 07:59 AM
| #9 |
| Rock Stacker Join Date: Nov 2009 Location: Drumheller
Posts: 79
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Ill bet it was your ESC going into thermal shutdown, not the motor. they dont shut down due to heat. get a mamba max ESC and you will be set.
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05-09-2010, 08:42 AM
| #10 | |
| Official Cook of the ECC Join Date: Dec 2005 Location: Hawthorne, Florida
Posts: 2,653
| Quote:
Damn, you're in Alaska?  If you can't keep it cool there you definately have a problem. You should try that down here in FL.  Last edited by Scattman; 05-09-2010 at 08:51 AM. | |
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05-09-2010, 09:03 AM
| #11 |
| Rock Crawler Join Date: Oct 2009 Location: Wasilla, Alaska
Posts: 852
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Its probably happened a handful of times, ya i probably would have a hard time keeping it cool down there it hit 60* yesterday
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05-09-2010, 12:04 PM
| #12 |
| Quarry Creeper Join Date: Dec 2009 Location: St. Augustine
Posts: 288
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lucky, it hit 95 on my front porch yesterday  but yea, get a mamba max and never look back  |
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