Medusa Motors

[carraig042]

I am looking to get one of the new Medusa motors since the CC one will take a long while. Make sure everything sounds right and will work good with each other.
-MMM ESC
-70mm Medusa 2000kv
-4s lipo

Does that sound like it might be a solid performer with good temperatures?

-Brett

[HoovHartid]

depends on gearing, but yeah should be fine..

[asheck]

IMO ,from running the 36-60-2000, The 2000 would be happier on 5s.I will be getting the 70-2300 for my 4s bashing.But the 2000 would do quite good on 4s,just not as good imo.

[carraig042]

You think that the 2300 would be better for bashing? What exactly do the numbers represent.. I forget/not really understand which numbers are best for what.

-Brett

[HoovHartid]

36-60-2000

36 is the girth
60 is the length
2000 is the kv rating

*edit* this wasnt a recommndation of the 2000 over the 2300, just an explination of what the numbers represent.

I think what asheck is saying is that with 4s, the 2300kv would be better, while the 2000 would be better on 5s;
14.8 X 2300 =34040 rpm
18.5 X 2000 =37000 rpm

better than\
14.8 X 2000 =29600 rpm

[carraig042]

Ok, I see what you are saying. So the 70mm 2300kv motor will do better than the 2000kv on 4s?
If I wanted to upgrade the 2300kv motor to 5 or 6s, would it be fine? Medusa says it is rated for 26volts.

I think I get it now.

-Brett

[asheck]

I think what asheck is saying is that with 4s, the 2300kv would be better, while the 2000 would be better on 5s;
14.8 X 2300 =34040 rpm
18.5 X 2000 =37000 rpm

better than\
14.8 X 2000 =29600 rpm

Correct.If your rpm's are to low you try to get speed from gearing,which seems to increase temps.But technically any of these can run 6s and stay within spec.

[The Oracle]

29,600rpms does seem quite low really, ~35,000rpms is much more in the sweet spot for efficiency, for motors this size. Im planning on getting the 2000kv 70mm model, to run on 5s lipo myself, though my current 9XL (1845kv) does well on both 4s and 5s lipo, so go figure really...

[carraig042]

lol. Ok. When it comes down to it, I really can't go wrong.

I believe that I will get the 2300 as it will suit my needs better now and will do good in the future.

Thanks for the help. I am starting to get a good grasp on the whole brushless thing!

-Brett

[asheck]

FYI get a motor clamp for it. http://www.rc-monster.com/proddetail.php?prod=RCM01 My endbell popped off.This is a common problem for more budget motors,and nothing that really is to say anything of the quality of this motor. I just drilled some holes and added screws,but the clamp would be better.

[The Oracle]

Yeah, I think thats the only issue really- neu motors used to be the same, as planes and helis tend not to bounce around like a truck does, so there was no need to secure the endbell with screws. No people are using these motors for ground vehicles, the endbells become a weak point, so neu introduced screwed on endbells (and bigger bearings too). I think medusa may follow suit in the future, but its no biggie really if you have a little initiative.