View Full Version : Multiplex and mamba
ElectricThunder
05-01-2005, 05:34 PM
Just a curiosity thing...would the mamba controller work with this motor: http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXJCK1&P=7 in a 1/10th scale ST? Or would that motor even work at all in a 1/10th scale (has a 4 pole rotor, so should have some decent torque I'd guess). Thanks ya'll.
kufman
05-01-2005, 06:14 PM
too many amps for the mamba controller. the motor would work if you built an adapter plate to make it fit a 540 motor face.the shaft is the proper diameter to use standard pinions.
bomb-proof
05-04-2005, 02:20 PM
25 amp controller on a 40 amp esc........hmmm
ElectricThunder
05-04-2005, 03:52 PM
25 amp controller on a 40 amp esc........hmmm
Huh? Did you mean to say 25 amp controller and 40 amp motor?
chilledoutuk
05-04-2005, 03:55 PM
he must have
interesting motors though anyone tried them?
TimisTim
05-04-2005, 04:52 PM
They dont seem to be tailored for 1/10. They even suggest pretty light planes. I think they would just burn themselves up in an ST. Pretty weak watts, and a three turn that only has 4100rpm/v? Whats that about!?!
ElectricThunder
05-04-2005, 06:30 PM
From what I can remember, I think one of the multiplex reps on here ran one in an ST, I could be wrong though. I know they're 4 pole, so should have good torque. And 300+ watts is still decent Tim. The novak has only 196. Besides, torque's where it's at;)
The reason I thought a mamba may work btw is because the MAX current of the motor is 40 amps. A mamba's max current is 50 amps. And constant is 25. I was figuring about 20 amps constant current from the motor...who knows. O well. The motors still look kinda cool, mounting would be a toughie though. :eek:
ducati777
05-04-2005, 07:01 PM
The reason I thought a mamba may work btw is because the MAX current of the motor is 40 amps. A mamba's max current is 50 amps. And constant is 25. I was figuring about 20 amps constant current from the motor...who knows. O well. The motors still look kinda cool, mounting would be a toughie though. :eek:
Well you might have a point there. All in all you'd be pressing the situation, but it might work. But if the mamba can really handly 14.4 volts with a peak of 50 amps at that voltage you're lookin at 720 watts.
I think if you ran high cell count and were heavy on the throttle you might get that mamba hot.
ElectricThunder
05-04-2005, 07:07 PM
I have no doubt that poor little controller would get hot. Just looking for some CRAZY (as in weird and economically priced, and just kinda unique) options.:D That multiplex motor with a cheap ESC like the MGM 60 would probably do quite nicely.... Hmmm... Or even a warrior 7018, dunno how a 4 pole would do on the warrior though. :confused: O the possibilities! :D
MikeMayberry
05-05-2005, 07:12 PM
The mamba 25 can't handle this motor for long, so it's not really an option. I have run this motor in a T4 with excellent results but I did have to make an adapter plate. My test showed that is was similar to the Novak in power.
You can't relate winds and KV in different design motors. It depends on the the amount of slots and poles, as well as the type of winding Delta vs "Y". I can tell you that with a 4.4:1 gearbox and 11x7 prop on a 3S Lipo in an aircraft this motor has almost as much power as a .40 size glow!
We have a cool motor calculation program (for aircraft) that you guys might check out.
Multiplex has something else up our sleeve so stay tuned. Sorry, it's a little too early to say anything though. :p
Mike.
ElectricThunder
05-05-2005, 09:02 PM
Thanks Mike. How many cells were you running when it was comparable to a novak, 6?
MikeMayberry
05-06-2005, 02:12 PM
6 cell and 2S Lipo with both motors. I did have overheating problems with the Novak ESC though until I added a fan.
Here's a question for all of you... do you think it will matter or not if a brushless motor is ROAR legal or not. Obviously the rules ROAR came up with seriously limit the potential power output of the brushless motors that will be legal for racing; I think was so they didn't just blow away the brushed motors right away. So, are most bashers going to be concerned that the motor they buy will or will not be legal to race in the future, or do they just want to have good power at a good price?
It really seems like the 480 size motors which are much lighter perform really well in 1:10th scale vehicals. So if there is a good reasonably priced combo would it be hindered by the fact that it is not ROAR legal?
Mike.
ducati777
05-06-2005, 02:38 PM
I know I don't care about ROAR or not. A lot of the local races don't care either...
TimisTim
05-06-2005, 02:49 PM
I dont care about roar legality. They seem to be holding the brushless crowd back. Would the 480 motors that you are talking of need an adapter plate?
OptimaMan
05-06-2005, 02:52 PM
I ran the Mamba 25 in my TC4 with a Hacker C40 12 turn motor on 11.1 volts. Ran fine. Didn't quite have the punch due to the amp draw limitations. Also, after a minute of running very smoothly, it did get much warmer than in my Mini T so I stopped it before I could thermal or burn it up.
MikeMayberry
05-06-2005, 02:54 PM
Thanks for the quick replies; that's good to know. I probably shouldn't show this yet but I'll keep the resolution small. ;)
Mike.
TimisTim
05-06-2005, 03:20 PM
I'll be a tester if you'll let one go for a decent price :D
Im interested in the 480 size motors now.
ElectricThunder
05-06-2005, 04:10 PM
Thanks for the quick replies; that's good to know. I probably shouldn't show this yet but I'll keep the resolution small. ;)
Mike.
Oh mama! Looks like Multiplex is up to something....:D Mike, can I make one request to Multiplex? A LOW COST CAR CONTROLLER! That is all. And I don't care about ROAR either. Started as a basher, and will always be one.:D
This motor looks just like the kontronik twist motor series - only difference is that this one is covered in blue. I run a twist 4200 with 4s Kokams 20c discharge (64amps continuos) and a u-force 75 on a 1/10 touring sedan. The speed and punch on this rocket takes a toll on my heart. :o
ElectricThunder
05-06-2005, 08:38 PM
This motor looks just like the kontronik twist motor series - only difference is that this one is covered in blue. I run a twist 4200 with 4s Kokams 20c discharge (64amps continuos) and a u-force 75 on a 1/10 touring sedan. The speed and punch on this rocket takes a toll on my heart. :o
I believe the kontroniks are two pole rotors, whereas the multiplex is 4 pole. So I think the multiplex may have more torque and be smoother? I dunno, just guessing. :)