Mamba Monster question

[revo_rob_1984]

can someone shed some light on this for me. . .i'm looking for a heatsink with a fan and i need to know what the can size is on my mmm, i have the castle blower on it now but it doesn't work as well as castle creations said it would so i was looking on ebay for one and they have a bunch but i don't know what the can size is on my motor. Any help would be greatly appreciated

 

[slowngreen]

Sorry to not answer your question, I dont know, but if you are over heating and have the CC blower on it, Id look at maybe changing your gearing a bit.

 

[neobart]

It's 43 or 44mm, can't quite remember. And I'm to lazy to take the body of my XXL to measure.

Ah to heck with I just measured it, 42mm OD of the cooling fins.

 

[frickenjoey]

The Mamba Monster motor specs are as follows Length: 75.5mm (2.97") Diameter: 40.5mm (1.59"). Get something that is close and you should be in business.

 

[neobart]

Hmm apparently they don't consider the cooling fins at all when measuring the diameter.

 

[flm_savage]

like sng said, i would look at gearing first. (unless you are seriously undervolted)

 

[revo_rob_1984]

my gearing is 24/54 and i'm running 2) 3s lipos (6s total)

 

[flm_savage]

is this on an e-revo?? I wouldn't run anything over an 18T with a 54T spur. I find it amazing the motor hasn't totally crapped out on you yet.

 

[revo_rob_1984]

really????. ..cuz traxxas is the one that suggested that gearing to me?

 

[flm_savage]

What exactly did they say.

 

[revo_rob_1984]

i told them i do 99% on road running with street tires and i wanted crazy top speeds, and his exact words to me were "you need a 24t pinion and 54t spur gear and you will be doing close to 70 in no time"

 

[flm_savage]

did you ask him if there would be any side effects such as excessive motor heat and shortened life?

what are your motor temps?

 

[revo_rob_1984]

did you ask him if there would be any side effects such as excessive motor heat and shortened life?

what are your motor temps?

No actually my dumb@$$ failed to ask that question, my motor temps generally run somewhere in the neighborhood of 130 to 135 depending on how hard i am on it

 

[flm_savage]

130-135 is perfectly acceptable. I would have thought you were much higher than that.

 

[slowngreen]

x2 with flm, if your seeing 135 out of running hard then you dont really need to be looking for more/better cooling.

 

[hamz9561]

What is the temp of the ESC when running hard? That could also be a problem.

 

[neobart]

Hot ESC= overgeared
Hot motor = undergeared

Or at least that's what I've been told.

 

[revo_rob_1984]

What is the temp of the ESC when running hard? That could also be a problem.

I never thought to check it cuz the fan never kicks on so i figured it was under 150, but now that i think about it maybe my fan crapped out