I really want one of these motors, I wish they had what I need in stock.

Thanks for the info on weight xcellr8n.

Anyone order a bonded heatsink version? I still have yet to get an update from them on my order.

I will send them an email today.

Thanks,

I was waiting to get one also, but couldn't hold out any longer, so I bit the bullet and ordered a smooth can 1512/2D. Maybe I'll still pick up a 36-60-2000 in the future, but outdoor season is starting around here and I can't wait forever.

I did. I ordered the bonded 4800kv version since they didn't have the regular 4800 50mm version in stock. I sent them an email before it shipped requesting they not put on, or remove if they had put on, the heatsink. They did. So now I got a kickass heatsink and a fine motor.

No problem! This was a comparison that I was very interested in myself. I was amazed that the two motors were so closely matched. But it does appear if you want to save weight go with a high quality smaller motor with higher Kv and gear down a bit.


The only thing I still worry about is weather or not the bearings will fail early with such high RPM (45+k). I have a few hours on it though and it runs as well as it ever did:whistle:

My other concern are motor temperatures. I think longer can and lower kv will run much cooler.

I'm not seeing this with my setups the Medusa has always been under 130f at the end of a run, it was 117f at the end of the logged run from yesterday. The Neu was at 127f at the end of the run yesterday. The Medusa does have a heat sink and the Neu does not, dont know for sure how much differance that makes but I want to make sure I give as much accurate info as possible.

I drove the Neu on asphalt today and the torque differance was much more noticable! The Neu has a lot more low to midrange torque, fun but a bit harder to keep the rubber side down;) Like I said I dont know if that much torque would be a good thing or not in a race. I guess it depends more on your skill level, and judging from your list of toys I would guess you might like the added power of the 60mm motors.

In the end you need to buy what you are comfortable with. Just thought my experimentation might be helpful to you since you were looking to go light and not looking for crazy fast speeds or super long runtimes.

I just fired off an Email to Medusa to see if there is an ETA on more 36-60-2000v2's. I really want one!

imo, this isn`t a fair comparison...
the 1512 is 60mm long, and thus it`s absolutely natural to have more torque than the 50mm medusa one [since the design is similar]...

a fair comparison would be between the 1512/2.5d [2050kv,60mm long] and the medusa 36-60-2000v2...
i know that many members [including buzzsaw] already know that, but i am just merely trying to make a point for those who haven`t realized that the particular/present comparison refers to motors of different length/size [not just different 'brand'].

just my 0.02...

My friend will convert his HB Lightning 10 truggy using Medusa 50 mm. I think I will try his motor and than decide if I need 60mm can.

Yeah, let us know how it works
I want to know how 50mm performs on 1/8 buggy. Because soon I will start new conversion project on AE RC8

The 50mm 2200kv works great in a buggy on 4s. That's what I'm running in my 8ight and I'm really happy wth it. It has plenty of torque and top speed.

I just got word.... Its now on the way!

"Mr. Fruge,



It has actually been shipped out this morning.



Thank You,



Chris Bernier

Shipping Dept.

Medusa Research, Inc.
"

Matthew, that is what I ordered for my sons 8ight conversion. What gearing are you using on your 4S setup? How is the runtime so far?

Thanks,

I'm running a 13t clutchbell and getting awesome runtime. I ran 2 5min qualifiers and 8 min of a 20min main (had the dogbone end of the center drive shaft eject after I cased the top of a jump). I don't quite remember the mah I was putting back into the pack after each qualifier (a Hyperion 16c 5350mah) but it was about the same if not a little less then tekno was putting into his and he was running a 1509 2Y and a MaxAmps 20c 6000mah with the same gearing. He finished the 20 min main with some to spare so I could have done at least 15min on the Hyperion, maybe 20, but I wasn't running that pack in the main, I don't like to run my pack until they dump, I was using a MaxAmps 20c 6000mah. We were both running MM with a fan, Castle BEC. This is racing so bashing should yield longer runtimes.

I'm also like their 1300kv 60mm in my 8T geared with a 14T bell. Running a Hyperion 18c 6s 4250 through an un-modded MM, Castle BEC, no fan. Haven't track tested this yet, but it should be a good setup.

Ya I hope no one was confused that these two motors were the same size.

Is it a fair comparison, absolutly not, the Medusa was a huge underdog. It is a valid comparison though, since both motors were used in the same vehicle with approprite gearing to attain nearly identicle speeds.

What it was intended to show is that the 36-50 is a capable motor. Keeping up with a 10mm longer, $140 more expensive motor and not getting scorching hot is a testament to this.

What I wasn't expecting was the Neu to produce so much torque on the tall gears I had to run (24t pinion) I was honestly expecting the Neu to be more sluggish due to the gearing.

I'm a relative newb when it comes to surface vehicle power systems, but have been running nothing but brushless motors in planes and helis for around 5-7yrs.

[QUOTE=Buzzsaw46;172399]Ya I hope no one was confused that these two motors were the same size.

Is it a fair comparison, absolutly not, the Medusa was a huge underdog. It is a valid comparison though, since both motors were used in the same vehicle with approprite gearing to attain nearly identicle speeds.

What it was intended to show is that the 36-50 is a capable motor. Keeping up with a 10mm longer, $140 more expensive motor and not getting scorching hot is a testament to this.

What I wasn't expecting was the Neu to produce so much torque on the tall gears I had to run (24t pinion) I was honestly expecting the Neu to be more sluggish due to the gearing.

I'm a relative newb when it comes to surface vehicle power systems, but have been running nothing but brushless motors in planes and helis for around 5-7yrs.[/QUOTE]

Same here... planes, helis, FE boats, and now 1/8th scale conversions.. :party:

agreed...!

just a side-note... in SOME cases, shorter gearing [larger pinion/smaller spur] can produce more torque... that will depend on the motor torque constant [torque/current] AND [especially that] batteries... i know it sounds stupid, but it does happen [under conditions]...

Current draw (provided the battery can discharge enough)!

Oh, and in other news, my Medusa 4800kv 50mm motor is holding up superbly to 27/87 gearing in my Rustler. Motor doesn't dare go over about 135F in the middle of the day (last week it was around 95 according to my truck's temperature sensor I think? And MAN, it felt like it big time- heat index was above 100 easy).

Thanks for that update.I've been comparing what your saying to my experience with the Novak 4.5 that I run in my Stampede.Since they are both 4800kv motor I find the comparison quite interesting.I can run lower voltage(2s) and never break 110* with 24/84 gearing and mashers.I usually run 3s though.With 3s lipo and 31/76 gearing the motor gets to about125*.Thats with temps in the 70,s though.So now my interest has been peaked about running my 4.5 in my maxx on 3s.Or go ahead and get a 50-3300.Boy what a hard decision.

HV 4.5 you mean you're running? I tried an HV4400 in my Rustler (before the sintered rotor and stuff). That thing HAULED on 12 cells.....:mdr: Ran a little hot at around 150F for what it was though. I think I ran 23/86 with that motor on 12 cells. Tons of power, but very very smooth. I still have the setup too, but the ESC is fried (engineering side of me got inside the case............hehe).

I just ran 21/87 with Mashers now, and the motor is handling it fine. Around 110F off a run doing some off road and on road action. Good stuff....:mdr:

Hey guys.

I am currently looking to pick up a medusa motor to run on 4 cell lipo setup to be legal for the RC Pro Series in a newer style E-maxx which has already got the single motor setup, etc on it.

Anyway, I am wanting something that has similar KV to my Neu 1512 2.5D, and I am looking at the 36-60 V2 2000Kv motor.

Here are my questions, I hope you all are able to answer:

1. What kind of range of pinion gears do I need to use for this kind of setup to go a max of about 40 mph (looking at race speed here)? (14.8V, 2000kv) ( I am having trouble getting the gearing XLS to open up for some reason)

2. Do the medusa motors come with a flat spot already on the shaft?

3. Should I go with the heatsink version, or, the smooth can setup?

4. How much do the heatsinks interfer with gearing on the newer Emaxx, as well as say a 1/8 scale buggy?

5. Can you use the heat sinks as a clip ons (order them not bonded, just clip on as needed?


I think that is about it. Thanks again everyone!

1. 24/58, though I'd suggest picking up all the available spurs for the emaxx 3905 & jato3.3 to experiment with.
2. Nope.
3. Smooth, dont really need a heatsink, only makes gearing adjutment harder due to larger diameter motor.
4. See above. Reported temps with even the 3300kv 50mm medusas are great in a 3905.
5. Nope- they are bonded to the motor at the factory, not a loose item you can order seperately. Best to use some cheap clip-on heatsinks & thermal grease to get the maximum heat transfer if you decide you need/want some heatsinks later on.

so what does everyone recommend for a motor for the 3905 from the medusa line?

if my opinion is welcome...

first, medusa heatsinks can be bought seperately:
http://www.medusaproducts.com/accessories/heatsinks.htm
the 36mm ones are usable with 36mm motors [apparently].

second thing to notice, the traxxas heatsink has smaller fins, and thus it`s a lot easier to mount and use than the medusa one. all other dimensions are equal between those two however.
http://www3.towerhobbies.com/cgi-bin...?&I=LXJD62&P=7
i have been using those for years without any issues/interference...

the 36-60-2000v2 is a killer motor at 5s. a tad on the slow/conservative side at 4s however [it will need gearing up quite a bit]... so suicideneil got it right on with the 24/58 gearing: it should get you to 40mph approximately [with 4s and assuming 'close-to-stock' wheels/tires]...

didn't know there were even more spurs. Will have to look into this more.

Too bad there isn't more mod1 spurs that fit the tranny as I have a good selection of mod1 pinions I would like to use.

would a 36-60-2000 v2 work an e-aftershock running 5s2p A123 and a MMM? on another forum some people were thinking that even though the can is the same size as a feiago L, with the 4 pole design it should have as much torque as a XL can.

what do you guys think?

BTW medUSA takes preorders on MR-036-060-2000V2-5 and lower KV motors, expected stock may 31

I almost ordered one last night, might still get a preorder in but I need to think on it. Kinda been thinking about an E-revo so another motor is needed but I might just go with a 75mm this time, the Tekno/Neu 1515 looks pretty nice.

You can easily mod the mgt mod 1 spurs to fit the revo spec slipper assy.

WE NEED A STICKY ABOUT THIS!!!!!

Mainly as i am sick of typing this info!!!!

Here is my current setup. I need to work on an antenna mount for it. I have the 36-50 2000kv with 12/46 gearing. I just took a few passes today on the street. What are some steps I can take to keep the ESC cooler other than a fan on 4S ? it was about 95F here today and after my short run the motor was about 105F and the ESC 125F.

What are your esc settings? You could up the timing and see if that helps? From what I can gather the higher pole count motors prefer more timing. You could also turn down the punch control.

Maybe open some cooling holes in the body, and add a fan.

Nice buggy John. Do you have any airflow through your body? I used a toilet paper core to make a duct from the windshield to my motor and it did help, dont know if it was any better than just a hole though;)

That is actually a really good idea. A duct like that could really flow, especially at speed. I may give this a try, sounds good for esc cooling. Maybe make a duct tube that runs front to back, and cut out a portion so that the esc heatsink can sit in the airflow.

I just re checked the settings and found that I was running the old SW.. v.09 and now its updated to v.17 I think I will leave things set the way they are for now and see if that helped.

Rev... off....

braking at 50%
Punch control 50%
Timming normal
LVC 12.4

Also I was not running a body for the road test / shakedown.

I have a feeling the new firmware will help...

anyone know if they will be adding the medusa motors to the asylum speed calculator?

PM Brian G as it is his program.

Linc, I wash thinking along the same lines as you on the duct in the begining but after a couple attemps I trimed it to just blow around the motor. Given enough time I'm sure it is possible but I didn't feel like investing that much effort into a half beat body. The other minor issue is when I do end up on the roof there is enough body flex that the tube gets pretty beat up. I used thined epoxy over the whole tube to help give it some strength and to water proof it, it helped but still not perfect.

Hope the firmware helps with your temps John, I ended up needing a small fan on the ESC to keep it comfortable. I really wanted to avoid a fan if I could.

Guys, just a racing update from Saturday Night. I entered the Novice class with the 50-2200 V2 powered 8ight buggy. I used 12/46 gearing. The power system ran great and nothing got hot. It was about 70F out side and things were running 100F or so. (they were so cool I did not feel a need to get out the temp gun.) The heats were 5, 5, 10 minutes.

I am happy with this motor so far and the 4S / MM / CC BEC with no mods are working great.

Now I need to adjust / setup the car better and learn how to drive :) I am about 5 sec's a lap off of the good buggy driver times.

http://www.centralvalleyrcclub.net/p...08/Results.htm

Sounds like good results. I just got an e-mail back from them, and within the next couple months they will be testing a 70mm long motor. Perfect for our monsters and truggies:yipi: