Medusa
 

I'm not sure about the older ones, I know he specified the 80 mm
motors that they tested before getting shipped to the rightfull
owners. I'm glad they checked them before shipping it out.

It's definitely nice to know they tested them. My 80mm has a couple hours of use on it already and it's working VERY well.

Nice, could you post bigger pics, cant see numbers in those? :) And when zoomed the numbers are blurry. Would be interesting to see them compared to mine.

Yeah the forum here resizes the poo out of anything that you post as an attachment. Here's another version:

http://gallery.brushlessmayhem.com/4267-1/run.jpg

And a zoom on one launch

http://gallery.brushlessmayhem.com/4270-1/launch.jpg

Got my 70 & 80 mm Medusa's today.

The 70mm was ok & in the box , but, the 80mm was the wrong kv printed on the box as opposed to what's printed on the motor. Was supposed to be 2000kv & 1600kv was on the motor.

I emailed Medusa & apparently a bunch of the 2000kv's were incorrectly labled. Anyone else experienced this?

How can I check it to satisfy my peace of mind?

Dumb question...it's ok to direct solder these motors, yes?

Yep, best to direct solder in fact.

As for testing the kv, difficult without an rpm spinning guage thingy. If you set up the vehicle for a certain speed (say 40mph), then run the truck with the motor, it should be fairly evident if its the right kv or not- if its 1600kv on 4s lipo it wont be terribly nippy compared to a 2000kv on the same voltage and gearing.. (GPS or radar gun would help).

Well I'm thinking of purchasing a Medusa motor to go with my LT ESC after *ahem* burning up the stock setup in my E-Revo :lol:
I was looking at the 70mm ones, but is it me or are the charts on the motors page all wrong? As I don't want to end up with the wrong motor! They are pretty pricey too, it had better last!

You think Medusa's are pricey?...sorry but no way...they are 4 pole and there reputation is awesome...haven't read anything derogatory about them that I can remember

pricey compared to what?

Well, I'm used to smaller scale setups so all this MT stuff is a little pricey compared to the 1/10th stuff. I'm used to paying £40 for a motor :P

lol...I understand then....main thing you have to remember is

speed is expensive....how fast to you want to go?

in my opinion......for the money, efficiency and durability........I don't think you can find a better system than the MMM combo...here at RCM mike sells this system for $279...it will save you money in the long run.....I just bought this system from mike and its so impressive out of the box......the stuff just looks and feels like quality built stuff and has proven itself so far

good luck

The price of the large can Medusas is really good when you compare it with a Neu or even a Mega. The only reason I bought a Mega was because Medusa didn't have a large can motor. Neu isn't an option for me because all I do is bash, and Feigao is... well you know.

Yeh stuff does get expensive in the large scale. I just look to the left of me and think, hmm I could have bought a new 1/10th TC for drifting instead of a single neu motor, or the lipos that go with it.

It is all part of the fun.... at least that is what I keep telling myself. :D

That is true, I nearly died when looking up the price of a Neu :oh: Even with the old, better exchange rate they are still ridiculously expensive.

Boy, that's the truth!

The thing is, it's a WHOLE lot more affordable now than it was a year ago. Back then a top notch setup would cost you close to $1,000 -- and that was just motor, esc and batteries.

Very true. I think I will have spent about £290 when I have got everything, which isn't too bad really, as it should last a long time.

The stock setup on the E Revo and E maxx is pretty sad. They are geared to fry Nimh batteries and burn up in my opinion.

The Medusa Motors are great. Grab yourself a 36-70-2000kv along with the heatsink, put it on 4S and go. :yes:

Great setup!

I'm running both the 1500kv and the 2000kv in the 60mm can and couldn't be more pleased. Both pushing around an Emaxx and an E Revo.

I'm waiting for the stock to show up on the 70mm and the 80mm versions. I have to give those a try also.

I have to say I'm really impressed with the 70mm medusa. I'm running the 1600kv one in my hyper on 6S A123 and it just refuses to heat up. I was flying around the yard for a good while last night and when I went to go in I touched the motor and it was just warm, not hot at all, and that's with no heatsink. A cup of coffee would be hotter. Love 'em!

I dont suppose you've tried that same motor in your maxx yet by any chance, with the same batts? Im really having issues deciding between a 1600 or 2000kv 80mm motor for my truck; I could get the 2000 and gear it down, but I'd still be a little concerned about a motor that fast (on 5s) running a bit hot and needing cooling down brakes still. If I opted for the 1600kv, it would run cooler for sure on 5s, but according to my calculations I would struggle to see ~40mph without running something like 24/56 gearing, though tire balloonage (love them jumbo clawdawgs!) would help abit.

'Tis a tricky one.... :neutral:

I've been actually having the same problems...

I'm getting a Thunder Tiger ST-1 Pro soon and I'm sure that I'll be getting the Medusa 36-80. But do I get the 1600 or 2000kv??? lol

Grrr, where's the 1800!?!?!

:lol:

Voltage seems to be my main issue really- I have set myself up with 5s lipos and 6s A123 packs (equal to 5s lipo), so I really need an 1800kv motor ideally too. If you havent bought your batts or esc yet, then 6s lipo is ideal for the 1600kv motor and the MMM or another 6s esc. Otherwise, I would suggest 4s lipo and 2000kv with the MMM or some other beefy esc for a big truck/truggy etc. The MMM+2200kv motor system would also be ideal for 4s lipo, maybe 5s lipo, but 6s would be too much usually for an MT.

I have a 5S 4900mah 25C Zippy-R and MMM now and really don't want to go under 5S. IDK, 4S just seems too low for me. lol

I'm thinking of going 1600kv and gearing up because that's the most popular thing to do, but having the extra 400kv with the 2000 would just be sooo fast!!! I like fast.

I have had 0 issues running my 60-2000 on 5 and 6s in my Erevo.Actually even with the same gearing it seems to run cooler on 5s then 4s.Perhaps the longer rotor could make you want to turn lower RPM's,but really the 37000 seems to be in the sweet spot for mine.

It probably runs cooler due to not be full throttle as much.

I would select the 2000kv for running on 6S. You'd still be within the operational limits of the motor, and I find that Medusas' sweet spot is between 35k and 45k rpm, at least thats when my 36-50-3300 really becomes lively. Also, when you're running 6S the current draw is less and as a result everything runs cooler anyway, same reason why you see a difference between 5S and 4S too; if you're pulling the same amount of wattage from both setups, the 5S setup will obviously have a lower current.

Nice, thanks for the inputs guys. 36-80 2000kv on 5S (6S later)it is! I can't wait. I really hope to have everything by next monday. 60+mph truggy baby!!!

I'm such a noob, lol.

I on the other hand am still undecided...

I wanted to know what gearing you guys would recommend. I've ordered a 3680 1600kv ( :party: but the order has been delayed :cry: ) and plan to run 6s in a 3905. Still the stock spur so what pinion do i start with?

With the 80mm you could actually go to Mod1 Revo gearing as long as you get the spacing right. A 30T pinion and 54T spur should give you around 65 MPH but that's a huge pinion.

Would I need to run a huge pinion?

If you keep the 32p gears, yes. What is the minimum distance between the motor shaft and the input shaft? If you can get that measurement you can use BrianG's gear diameter calc to figure out what Mod1 gears you can fit. You could use a smaller pinion with a Jato spur if you wanted, but you'll get more speed and tougher gears with Mod1.

Thanks Spy I'll check it out :mdr:

Where can I get heat sink for a medusa 36-60-2000?

http://rc-monster.com/proddetail.php?prod=RCM01

You'll want the "L" clamp.

Or there's the Novak 5412. That's what I use on both my motors. It's got fins big enough to mount fans on.

It doesn't have a clamp on it though, MedUsa motors don't have their endbells screwed in and can possibly come loose after a hard enough hit.

Never happened to mine while it was in the rustler, and I broke that thing so many times I had to convert it to FLM. But either way, his choice.

I'll be running a 70mm 2000kv in my E-Revo and running MOD1 gearing, so what you guys are saying is that it may not fit due to the spur/pinion gap? If thats the case then I'll look up a 40t spur and a little bit bigger pinion (I'm going to be running 4s and gearing for 40mph).

Well it did happen to mine.So I can testify.In a vehicle like the Erevo where they face backward,a hard enough hit will leave you with a rotor dragging the rear bearing.Not a very good thing.I would do something to prevent this.I actually put little screws in mine.

Why not just stick to the stock pitch?