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-   -   CC 2028 with MMM on 6s? (https://www.rc-monster.com/forum/showthread.php?t=29945)

Dj_Sparky 05.04.2011 12:09 PM

CC 2028 with MMM on 6s?
 
Was wondering, will a CC 2028 work on 6s with a MMM, or will the amp draw be too great? Was thinking of putting it in a Monster Truck.

_paralyzed_ 05.04.2011 06:08 PM

amp draw too great

DrKnow65 05.04.2011 09:47 PM

+1, I think the 17xx series is the limit for the MMM...

But I also LOVE my Mamba XL and if it was smaller I'd use it in all my RC's. It will spin up a 20xx series very nicely :-)

Dj_Sparky 05.04.2011 10:39 PM

I was holding out on the Mamba XL cause I heard there are some bugs that still need to be ironed out by Castle. Is this not true?

What's_nitro? 05.04.2011 10:48 PM

Well, if your XL blows up some time in the next year, you send it in under warranty and get it replaced. If it doesn't, then all the better. Bash on. :mdr:

DrKnow65 05.04.2011 11:07 PM

Quote:

Originally Posted by Dj_Sparky (Post 405815)
I was holding out on the Mamba XL cause I heard there are some bugs that still need to be ironed out by Castle. Is this not true?

The initial version of the XL had BEC issues that have been fixed, I.e. Version 2.
Anyone with an original XL can trade it in for the version 2, and all the current XL's in the stores are V2.


@whats_nitro, who's bashing?

x-y 05.04.2011 11:49 PM

mmm + 2028 = burned esc

the limit for the mmm is the 1717 ........ more is search kill the esc :(

What's_nitro? 05.05.2011 12:18 AM

Quote:

Originally Posted by DrKnow65 (Post 405819)
@whats_nitro, who's bashing?

I meant bashing, as in driving your RC in an somewhat erratic manner. :lol:

DrKnow65 05.05.2011 09:39 AM

Ahh, sometimes I really overlook the obvious :whistle:

nuz69 05.06.2011 04:37 AM

I say, why not ? The amp draw doesn't depend of the motor but depends of the setup.
The motor weights 1,3kg, if its put in a monster truck of 4kg, it will do 5,3kg total weight. Geared for less than 50mph, the MMM should be totally fine, the MMM is enough to push a 5kg vehicle to more than 60mph with 6S lipo, so why not ?
More over the 2028 has a small Kv so high inductance, then the current spikes should be very low compared to other setup with smaller motors...
Just my opinion...

_paralyzed_ 05.06.2011 08:20 AM

Quote:

Originally Posted by nuz69 (Post 405910)
I say, why not ? The amp draw doesn't depend of the motor but depends of the setup.
The motor weights 1,3kg, if its put in a monster truck of 4kg, it will do 5,3kg total weight. Geared for less than 50mph, the MMM should be totally fine, the MMM is enough to push a 5kg vehicle to more than 60mph with 6S lipo, so why not ?
More over the 2028 has a small Kv so high inductance, then the current spikes should be very low compared to other setup with smaller motors...
Just my opinion...

It has the potential to pull more amperage than the MMM can handle. It is just not a wise setup.

You could run it on a sidewinder but I wouldn't do that.

DrKnow65 05.06.2011 09:31 AM

It takes amps just to spin up a larger motor. Bigger can be more efficient to a point, then it heads the other way.

I've actually been going smaller in my setups. The better motors (Neu specifically) make so much power in high voltage low KV systems that I can get insane power with tiny lipo's and light motors while retaining good run times and having the suspension run something less than the hardest springs and heaviest shock oils :-)

Just my $0.02

nuz69 05.06.2011 09:42 AM

Yeah, IMO it will be completly stupid to put this big motor in a 1/8 Monster in which a simple 1520 or 1717 will be enough... But wy not ? Ok, to turn a larger heavier rotor, it takes a little more amp than to turn a 1515 rotor, but we are not talking about 50A more, aren't we ?

_paralyzed_ 05.06.2011 11:02 AM

Quote:

Originally Posted by nuz69 (Post 405916)
But wy not ? ?

Castle rates the 2028 as 10hp, or 7460 watts.

At 6s (22.2v) that takes 336 amps.

At 8s (29.6v) it takes 252 amps.

It is just not smart to mismatch components. A rock in a wheel could cause unforeseen load and the esc goes poof, or any other of a million anomalies that could happen.

Plus, as the Doc said, why have all the weight if you aren't going to use the power?


Why not put a jet engine in a honda accord?

What's_nitro? 05.06.2011 06:12 PM

Quote:

Originally Posted by _paralyzed_ (Post 405917)
Why not put a jet engine in a honda accord?

How about a CRX? :mdr:


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