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-   -   Medusa Afterburner V2 BL motors (https://www.rc-monster.com/forum/showthread.php?t=10980)

lutach 05.04.2008 09:54 PM

Quote:

Originally Posted by highflier (Post 169390)
I am looking to find a cooler running solution for myself. currently I run a wanderer 9xl, that motor is 74mm. So I am a little concerned with a 60mm upgrade? Can anybody compare the Wanderer to the Medusa 38/60/ 1600V2. My other option is the Mega 22/45/1E Still 60mm but 6 pole, If I was to go to the Nue, I think I would get the 15/15/1Y or 2d

So which of the three would be the best choice with Money considered
Medusa 36/60/2000 or 1600
Mega 22/45/1E
Neu 15/15/1y or 2d


Highflier

They all seem like a good choice. The Mega 22/45 and Neu 1515 btw are 69mm long. I think all the ones mentioned above will out perform a 9XL. My Mega 22/30/2 out performs my 7XL.

Buzzsaw46 05.04.2008 10:03 PM

For the money the Medusa's are the real deal! Megas are nice motors but price is getting up there. I just ordered my second Neu yesterday, only reason was I couldn't find a 36-60-2000v2 in stock, so I got a 1512/2.5D that I was able to find in stock.

My pick order would be.
1 Medusa
2 Neu
3 Mega

I found it amazing that my 36-50-3300 runs cooler than another guys 10XL in a maxx our ESC's were very close but he was hitting 160f(mid 70's ambient) while I hit my highest peak temp today @ only 130f(high 60's ambient). His truck is heavier but I think mine looks a bit faster. We are both running 5s A123's so run times are pretty close also.

mowed the lawn for the first time this year, wish my buddy would have showed up with his radar gun. I was definatly getting more speed today, I hit my ditch jump wide open and cleared the road by a good 15-20 feet. By far the best launch I've gotten so far, the hang time was long enough for me to start having second thoughts;) Ya, a 36-50 would never be enough for a monster truck LOL!

highflier 05.04.2008 10:17 PM

My setup is
FLM e-maxx
6s1p A123
Revo 3.3 and RPM upgrades
Currently BK 12020 , but have a MMM on pre-order
RR double slipper

Will the finned versions of Neu or Medusa have any interference issues on a Maxx or E-revo (My next thing that this stuff will eventually be moved into)

Highflier

glassdoctor 05.04.2008 10:17 PM

That is impressive... I'm going to get a 60mm medusa as soon as they are available somewhere.

glassdoctor 05.04.2008 10:32 PM

1515 2.5D or the medusa 60mm 1600

I like the 1600kv of these motors, for your 6sA123 pack... but I'm not familiar with running the emaxx or revo and the gearing they have. Maybe you need more rpm for them, but for a truggy these motors would be perfect for a good cool-running setup.

Buzzsaw46 05.04.2008 10:32 PM

Ya, I wish I could have found one to save the $$ from the Neu I bought:whistle:, at the same time I do like buying a true hand made american classic:yes:

GlassDr did you see the vid I posted http://www.rc-monster.com/forum/show...2&postcount=72 Nothing to spectacular but an average run for me consists of about 8-9min driving like in the vid, towards the end of the pack I usually see how far I can ride a wheelie so the last 2-3 min is just riding wheelies across the yard, too easy to go over backwards at the beginning of the run.

Buzzsaw46 05.04.2008 10:36 PM

I was looking last night at gear ratios and I'm having some trouble due to the 1/8scale buggy diffs. even with the 2050kv 1512 I need to run a 24t pinion on 6sA123s to get the same predicted speed as my Medusa setup on 5s

Buzzsaw46 05.04.2008 10:55 PM

Quote:

Originally Posted by highflier (Post 169416)
My setup is
FLM e-maxx
6s1p A123
Revo 3.3 and RPM upgrades
Currently BK 12020 , but have a MMM on pre-order
RR double slipper

Will the finned versions of Neu or Medusa have any interference issues on a Maxx or E-revo (My next thing that this stuff will eventually be moved into)

Highflier

Nice truck! Cant wait for an FLM 3905 chassis:whip:

I had to trim the fins on my medusa because of the 15t pinion I run, I probably wouldnt have needed to if I was running closer to stock sized gears. The 36-60 looks like the fins might be far enough back not to interfer with the 3905 tranny, cant say for sure. I cant comment at all on the finned Neu since I dont have one to look at, but i would guess it would depend on the spur and pinion you run.

Mister-T 05.05.2008 04:44 AM

Just for the details, i ask medusa research about there motors.

"Our motors are slotted 4 pole motors.

Yes, we can replace the shaft and bearings if needed."

kostaktinos_mt 05.05.2008 05:33 AM

rotor is segmented and wrapped in a carbon shell if i may add...

pretty identical to the neu concept if i was to be asked... only difference being that medusas seem to be mass-produced [rather than hand-wound], and thus significantly cheaper than neus...

glassdoctor 05.05.2008 08:50 AM

Saw part of the vid, but without sound. I need to get that fixed.

Medusa's come with finned cans? Cool...he only ones I've seen are smooth can....

Five-oh-joe 05.05.2008 09:05 AM

They have a heatsink bonded to them if you choose that option (extra 10 bucks or something; I opted for that because it was the only way I could get the 4800 motor, but I just emailed them and they made sure to remove it before it shipped since it wouldn't fit my tranny case with the heatsink on it). I haven't seen them actually built into the can though.

glassdoctor 05.05.2008 09:17 AM

Oh yeah.... I have seen the add-on sinks... and they are only like $5.99? I was thinking Neu type can. :)

Five-oh-joe 05.05.2008 09:31 AM

http://medusaproducts.com/motors/mot...k-combo-V2.htm

Those are the only ones that I've found with the heatsinks. The heatsink adds a decent amount of circumference too.

Buzzsaw46 05.05.2008 12:45 PM

Not sure why there was no sound, it works for me. Anyone get no sound from it

Five-oh-joe 05.05.2008 01:14 PM

Works for me. That's a beastly truck buzz.

I just came back inside from an approximate 10-12 minute run with the Rustler (I'm trying to limit runtime to about 10-15 minutes so I don't kill my lipos). Everything is the same as previous tests, except this time I loosened the slipper by about 1/6 of a turn, and geared up to a 27 tooth pinion (27/87 so about an 8.764 FDR) .

Conditions:
-Night
-about 84F out with a very warm breeze
-muggy/humid Florida summer night

Temperatures:
Motor- 115F
ESC- 110F
Battery- ~110F with case on, 135F without case on bare cells

So far the Medusa+Mamba setup is great! I wish I could have tested it today when my 1:1 truck's temperature display said 92F though... Took forever to balance charge this pack (I balance charge the pack at .75 amps now since I've been pushing it super hard).

Comments:

I tried everything I could think of to get the motor to heat up. Tons of wheelies, tons of WOT passes and 180 degree turns where I'd brake to spin and then jam the throttle down to get as much current drawing as possible. Motor seems to be quite "happy" at this gearing. The real test will come maybe tomorrow or Wednesday; my vista gadget says it'll be about 87F tomorrow for my area (probably hotter in the middle of the day I'm thinking).

glassdoctor 05.05.2008 10:16 PM

Quote:

Originally Posted by Buzzsaw46 (Post 169593)
Not sure why there was no sound, it works for me. Anyone get no sound from it

It's just me... :whistle: my computer has an "issue" at the moment... sound cards no workie and I've tried a couple different ones. I need to try new drivers and see if I can get her going.

highflier 05.05.2008 10:22 PM

Maybe it is your speakers......

The power supply or the volume is turned down. Some of em have on off for th amp.

Highflier

glassdoctor 05.05.2008 11:45 PM

Nope... speakers are ok... checked that out. I might have a bad MB... but there is a driver conflict now in the hardware config settings. I just checked it again... had not messed with it for a while.

Before it would say "this device is working properly", etc like there was no problem. At least now I have some hope that I can get ti fixed with drivers or reinstall or something.

I've been too busy to mess with it... maybe I should get off the internet huh? LOL

killermmn 05.06.2008 02:30 AM

can someone whit this motor post a video if possible??

SypderFungus 05.06.2008 02:43 AM

I have this motor. What kinda video do you want? Bambi? Toy Story?

killermmn 05.06.2008 02:46 AM

speed run or bashing run

bruce750i 05.06.2008 12:09 PM

LOL, One vote 4 Bambi.

fastbaja5b 05.06.2008 08:43 PM

Does anyone have any gearing ideas for a 36-50-3300V2 in an E-Savage on 12 Nimh cells (switching to 2* 2s2P A123 cells) I have an 18t on there right now and it doesn't feel any faster than the Ammo 2600. I have the timing set at 10 degrees at the moment.

Motor comes off at 110 degrees without a fan, standard heatsink as the Medusa one doesn't fit the E-Savage transmission to well, ESC has a fan and comes off at 90 degrees. Batteries (Nimh) come off at 100-120 degrees.

jfruge 05.07.2008 05:06 AM

Well I just ordered a Medusa

36x50mm 2200Kv V2 Afterburner Brushless Motor, w/Bonded Finned Heatsink.
5mm Shaft

I plan to use it on my sons 8ight buggy on 4s 5000

Fun Fun

jfruge 05.07.2008 10:44 AM

Quote:

Originally Posted by jfruge (Post 170174)
Well I just ordered a Medusa

36x50mm 2200Kv V2 Afterburner Brushless Motor, w/Bonded Finned Heatsink.
5mm Shaft

I plan to use it on my sons 8ight buggy on 4s 5000

Fun Fun

Anyone have any thoughts on a good safe pinion size for this setup? I have the 46T plastic spur, 4S 5000 lipo on a 8ight buggy. I am looking for a good driving setup and not all out top end speed. I think my local track is mid size and med. bite. In the Novice class were only running 10 minutes mains as well.

Thanks,

Buzzsaw46 05.07.2008 11:18 AM

I would say a 12-14t John. That sould give you a good range of speeds through the mid to upper 30's possibly into the low 40's

jfruge 05.07.2008 01:09 PM

Quote:

Originally Posted by Buzzsaw46 (Post 170219)
I would say a 12-14t John. That sould give you a good range of speeds through the mid to upper 30's possibly into the low 40's

Thanks for the info. I should have these conversions going before too long. I just got a PM that the RCPD EL8 conversion kits I had on order shipped yesterday.

Fun Fun,

xcellr8n 05.08.2008 10:59 PM

Motor
 
I just installed a medusa 36-60-1600 in my losi 8t about a week ago. I am running it on 4s 6000 pack. I do not have alot of experience with different motors but I was running a nemisis xlt motor before this. This motor has plenty of power and seems to have just as much torqe and speed if not more then the nemisis. Raced a 20 min main this past weekend and temps came in at 135/motor-114/esc-95/battery. I am liking this motor so far.



Tim

TexasSP 05.08.2008 11:06 PM

Any idea the weight on your 8T? Thanks for the review by the way.

jfruge 05.08.2008 11:18 PM

Quote:

Originally Posted by jfruge (Post 170174)
Well I just ordered a Medusa

36x50mm 2200Kv V2 Afterburner Brushless Motor, w/Bonded Finned Heatsink.
5mm Shaft

I plan to use it on my sons 8ight buggy on 4s 5000

Fun Fun

Just an order update. Even tho it was listed as in stock. The last email i got yesterday said the order is being delayed because they need to bond the heatsink to the motor. I hope it will not take too long :) My RCPD Kit should be here Friday I think.. WooHoo!

Mister-T 05.09.2008 06:24 AM

Man i'm seriously thinking to get one,
I can't get the motor temp lower in my 1/10 Truggy (MM 4600 kv), I 've tried lower gearing, change timing, put heatsink on the motor. Still running really hot, in fact I can't drive 2 battery in a row or the motor will probably cook itself.

highflier 05.09.2008 08:09 AM

This may sound stup[ic but I was having a similar problem and I was advised to gear up not down. It seemed to help.

Is the ESC running very cool. (that is why they advised me it may be geared to low)

Highflier

Mister-T 05.09.2008 08:12 AM

ESC is running hot as well

xcellr8n 05.09.2008 10:14 PM

Quote:

Originally Posted by TexasSP (Post 170804)
Any idea the weight on your 8T? Thanks for the review by the way.

Right at 11 lbs. I think it was 10 lbs 11 ozs. I will take some pics of my setup and some vids when I get a chance.


Tim

Maciolus 05.11.2008 02:03 PM

I am preparing to convert HB Lightning Pro Evo buggy. I want to use MMM ESC, Medusa MR-036-060-XXXXV2-5 motor and A123 cells.

I think about lighter setup. My track is rather short. Buggy does not have to be ballistic. 10 min runtime is enough.

I want to use 6S1P A123 cells. 6 cells fit chassis nicely, are light and can be charged as one pack with my Hyperion. 1600kv motor will not need as much current as 2000kv. Around 30 k rpm was enough for me in my brushless 1/8 stadium truck. Moreover 4 pole motors like to be overgeared.

What do you think about this setup (1600kv, 6S1P A123, 31 680rpm)?

Buzzsaw46 05.11.2008 02:48 PM

With your goal to lighten the buggy, I wonder if a 36-50 motor woundn't be enough. Since your not going for incredible top speeds, or crazy long runtimes a 6s seems overkill to me as well.

Your plan sounds fine but seems contradictory to your goal.

I have a heavy mostly alloy HPI NMT(very close in size to an 1/8scale buggy) that does close to 50mph for 10 min on a Hacker C40-8L and 4s A123's.

http://i287.photobucket.com/albums/l...6/DSC05062.jpg

My Emaxx does 42MPH through grass for close to 10min on 5s A123's and MR36-50-3300v2

http://i287.photobucket.com/albums/l...6/DSC05096.jpg

I think you can meet your performance goals and reduce weight even further!

Maciolus 05.11.2008 03:23 PM

I just can't belive these motors are so good ;)

By lighter setup I mean 6S1P not 5S2P or 6S2P :)

What do you suggest? 50-3300 @ 5S or 50-2200 @ 6S

Buzzsaw46 05.11.2008 05:35 PM

Well just to make sure I was thinking right I just did two back to back runs on my E-maxx one with the Medusa 36-50-3300 and one with my Neu 1512/2.5D both on 5s A123. The Medusa was running a 15t pinion 68t spur, the Neu on a 24t pinion and 68t spur. Both setups show 33mph on the Top speed calc @scriptasylum.com.

Data from the medusa run.

http://i287.photobucket.com/albums/l...parerunFDR.jpg

Data from the Neu run.

http://i287.photobucket.com/albums/l...irstrunFDR.jpg

As for driving the Medusa felt a touch faster and maybe a bit quicker off the line, the Neu felt like it had a bit more midrange torque, better for racing?? or too much maybe?

I plan to move the Medusa to my EMT now, still on 4s(fits the truck well) and this should be a nice setup I think, and kind of what I think I would do with an 1/8 scale buggy if I was going to race at less then ballistic speeds. I'll do some more swapping around and see how the Medusa does on 4s in the truggy.

I'll post back with some data later tonight.

Need to mod my motor mount for the Medusa, might not get to it tonight.

Maciolus 05.12.2008 07:48 AM

Thanks!

WOW! Only 9A of average amp draw.


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