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MMP question
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Marvin
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MMP question - 11.07.2009, 02:48 PM

I would like to try an MMP, but I'm not sure it's suitable. My intended set-up is:

3S 5400mAh ThunderPower 40C Pro-Race (three saddle pack cells, for balance - this should be enough for about 12 minutes)

Tekin T8 2650kV motor

In a lightweight car - projected weight of around 3.2-3.4kg.

Would the low voltage mean the current draw would be too great for the MMP?

Would an RX8 or RS Pro (with some extra caps) be more suitable?

I was thinking that the MMP's current rating is around 80A (ish), and the Hobbywing 80A ESC can only run 4S at most, so it should be ok? Considering that I'm also going to solder 3 or 4 105C 35V 220uf additional caps to it.


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suicideneil
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11.07.2009, 07:29 PM

~8lbs... should be alright. By all accounts the esc runs cooler than the motor when abused/ used in a less than ideal setups- 3s & 2650kv is pretty common, though I would think you'd get more than 12 minutes?
   
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shaunjohnson
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11.07.2009, 07:36 PM

yeah.
dude, my revo on 6s only pulls 70A bursts when you mash the throttle! (eagle tree data)
and you know how much an average revo can weigh. (i dont pay attention to weight for racing much lol)

you should be fine


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Marvin
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11.07.2009, 07:37 PM

Yeah I should, but what I meant was that is about as long as I'd need/use as it'll be for racing - geared for ~ 42-43 mph with .5" tyre ballooning on Brian's calculator.


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