Which 6 pole motor?

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Old 02-01-2014, 07:22 AM
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Default Which 6 pole motor?

Hello,

I'm in the market for a new 6 pole brushless motor for my 4S powered buggy, sensorless.
I am looking at the Tenshock X802L 1950kV and the SkyRC Toro X8PT 1950kV. I have read nothing bad about the X802L, but the X8PT is 20$ dollars cheaper and would fit my JQ THECar inner color scheme very nicely. I couldn't find any opinions about the X8PT on the web.

The X8PT has little less overall power (3000 vs 3500W) and is slightly heavier. What do you guys think? Any other contenders?

Cheers!
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Old 02-01-2014, 07:29 AM
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Tenshock! Beast of a motor!
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Old 02-01-2014, 12:17 PM
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For sure the Tenshock are great, the other motor are amp hungry.

PS check the motor is the right length for your buggy, so it does fit
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Old 02-01-2014, 12:23 PM
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tenshock > toro
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Old 02-02-2014, 04:33 AM
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Yeah, I checked the length, the 74mm long can fits the JQ THEeCar, no problem.
Well, its the X802L then ... Thanks for the input!
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Old 02-06-2014, 09:41 AM
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I run a jq e car (tekno same layout) there is no need for a 74mm can. The 68 is more then enough
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Old 02-06-2014, 10:50 AM
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Thanks for the inputs guys. I will probably go with the X802, so 68mm can.
One more question, kV on 6 pole motors. I was running a 2000kV 4 pole Hobbywing motor, and I think the power setup was pretty efficient on 4S. What about 6 pole Tenshock on 4S? Do I still go for the same kV? If I go the X802 way the choice would probably be 2100kV.

If I decide to go sensored the choice gets a little more complicated. There is the X812 with 1950kV and 2150kV. How do I choose the right one? Ideal would be to test.

The tracks I will be racing are not so big, rather small.
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Old 02-07-2014, 11:01 AM
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same kv is fine, just limit torque more because the motor produces more of it
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Old 02-07-2014, 11:02 AM
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i ran the 1650kv x802 on 5s in truggy and it was a beast
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Old 02-09-2014, 02:52 AM
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I am loosing my mind over this one ...
Reading a post in another thread (rctech.net/forum/electric-off-road/511600-6-8-poles-1-8-buggy-motors.html#10 ) suggests is should go down in kV and use a bigger pinion. So now I am looking at the 1850kV 68mm can Tenshock X802 V2. Should I be concerned with the temperatures?

What about power? I am currently running a Hobbywing 4274 2000kV which has 1300W of power specified. The Tenshock has 3000W of power specified. But also, for 1850kV the max amp draw is 110A, which produces only 1630W, in my opinion (14,8V*110A = 1628W). Am I missing something here?

I might as well stick to my HW 2000kV and give me some peace.

Last edited by nene; 02-09-2014 at 04:56 AM. Reason: Typo
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Old 02-09-2014, 04:26 AM
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Originally Posted by nene View Post
What about power? I am currently running a Hobbywing 4274 2000kV which has 1300W of power specified. The Tenshock has 3000W of power specified. But also, for 1850kV the max amp draw is 110A, which produced only 1630W, in my opinion (14,8V*110A = 1628W). Am I missing something here?)
No, you're not. They spec 3KW based on max voltage and max current. Since you're running 4S and not open to 6S and above, you won't see that kind of power with low kV versions. However, a 6-pole motor should be more efficient than a 4-pole and make more torque. It's sort of like comparing an AWD 300HP car to a FWD 300HP car. Both make the same at the crank but the FWD will beat AWD in a highway pull because it's only losing 10% to the drive train while the AWD is around 25% (plus weight but that's irrelevant here). Keeping that in mind and considering that Tenshock is still making 300W more than HW, I would expect a noticeable increase in performance.
Do beware of Tenshock's current draw with higher kV motors. I have a 4000kV SC401 (36x60mm) that hits 175A easily O.O
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