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

highpowerhobby 01.06.2009 12:48 AM

But the 60 series is the way to go for buggy? The 1800 would give better efficiency(run time) and run cooler?

PapaGeno21 01.06.2009 12:50 AM

Yes, I would do 1800 in a heartbeat over the 2000.

For my personal taste, the 2000 would be too high and the 1600 too low in a buggy, 1800 is absolutley perfect.

Should have good runtimes and temps.

George16 01.06.2009 12:56 AM

I'm running a 36-70-2000 on 5S on my converted revo. Good runtimes and temps.

anson 01.06.2009 04:44 AM

Grrr, just got my 5S lipos for a 10S setup today, and my eagletree logger, have a LT-10S all soldered up. Just missing my 80mm 1100kV medusa now. Hopefully I get that shipment notice soon. I want to see what this beast can do. Tested out my new recorder for a few minutes using my neu 1515/2.5D on 6S and it peaked at 107A. Eager to see the data on the 1100kV Medusa now. This is in my Hyper ST.

Unsullied_Spy 01.06.2009 05:37 AM

Quote:

Originally Posted by anson (Post 249211)
Grrr, just got my 5S lipos for a 10S setup today, and my eagletree logger, have a LT-10S all soldered up. Just missing my 80mm 1100kV medusa now. Hopefully I get that shipment notice soon. I want to see what this beast can do. Tested out my new recorder for a few minutes using my neu 1515/2.5D on 6S and it peaked at 107A. Eager to see the data on the 1100kV Medusa now. This is in my Hyper ST.

:surprised: That thing is going to be insane. My 2000KV 80mm on 4s moves my ~14 pound Muggy around like it was nothing.

anson 01.06.2009 06:06 AM

Quote:

Originally Posted by Unsullied_Spy (Post 249213)
:surprised: That thing is going to be insane. My 2000KV 80mm on 4s moves my ~14 pound Muggy around like it was nothing.

Hahaha, good to hear. I can already hear my wallet screaming.
What was that old saying, you won't break anything if you don't hit anything. Hopefully I can do that.


Not bloody likely.

BL_RV0 01.06.2009 09:55 AM

What is your wallet screaming? Bloody murder from having so much money taken out of it? Or excitment?

drkdgglr 01.06.2009 03:35 PM

Quote:

Originally Posted by Unsullied_Spy (Post 249213)
:surprised: That thing is going to be insane. My 2000KV 80mm on 4s moves my ~14 pound Muggy around like it was nothing.

Do you think 80mm is too much for the muggy?
Because I didn't want to wait for the larger motors, I got a 60mm 1300kv medusa for my muggy. Only had one run on 8s so far, but it did really well. I'm thinking the 70mm 1200kv might be just right for the muggy on 8s.

anson 01.06.2009 04:05 PM

Quote:

Originally Posted by BL_RV0 (Post 249243)
What is your wallet screaming? Bloody murder from having so much money taken out of it? Or excitment?

A bit of both, but swinging more towards the former.

FG101C 01.06.2009 07:04 PM

Well I'll say this. Comparing a tekno NEU 1515/1/Y/F (2200kv) to the Medusa 36-60-2000kv. The Medusa's must not be very efficient motors. I had the NEU in an SC8, geared 13/46 on 5s and the NEU never got hot, 110 at best. I have the Medusa in my D8 buggy, geared 13/48 on 5s and it gets real hot real quick. The SC8 has diff gearing of 43/10, the D8 also uses 43/10. The D8 and the SC8 also had the same size tires, same set of tires for that matter.

So I went ahead and ordered a NEU 1512/2.5/D/F for the buggy and the Medusa will go in my basher/Corr truck project.

asheck 01.06.2009 08:42 PM

Quote:

it gets real hot real quick.
Could you be a little more specific?Mine runs nice and cool in an Erevo,rarely tops 140.I run 4,5, and 6s,sometimes geared for 60+ mph.But I have heard of a few others whose ran hot,I have to wonder if there is a little inconsistency.

MetalMan 01.07.2009 12:18 AM

Quote:

Originally Posted by FG101C (Post 249430)
Well I'll say this. Comparing a tekno NEU 1515/1/Y/F (2200kv) to the Medusa 36-60-2000kv. The Medusa's must not be very efficient motors. I had the NEU in an SC8, geared 13/46 on 5s and the NEU never got hot, 110 at best. I have the Medusa in my D8 buggy, geared 13/48 on 5s and it gets real hot real quick. The SC8 has diff gearing of 43/10, the D8 also uses 43/10. The D8 and the SC8 also had the same size tires, same set of tires for that matter.

So I went ahead and ordered a NEU 1512/2.5/D/F for the buggy and the Medusa will go in my basher/Corr truck project.

Undergeared? Running the numbers in the calc shows a top speed of only about 30mph. IMO an 18t pinion would be a better choice for about 40mph.

Unsullied_Spy 01.07.2009 12:48 AM

Quote:

Originally Posted by drkdgglr (Post 249361)
Do you think 80mm is too much for the muggy?
Because I didn't want to wait for the larger motors, I got a 60mm 1300kv medusa for my muggy. Only had one run on 8s so far, but it did really well. I'm thinking the 70mm 1200kv might be just right for the muggy on 8s.

I like how it runs on 4s. It's very powerful and even with the soft start cranked up on my MGM it'll launch like a scalded dog. The 70mm would be fine, but I like that extra bit of power :yipi: I've still got the massive stock tires on mine (and I actually like them a lot) so that needs more power to move around. If you are going to an MT (Revo, Savvy, etc.) sized tire the 70 should be fine.

I E-Mailed Mike about getting heatsink clamps made for these new motors and he said they will be coming out (didn't even give a hint at when though) but he said that with the motor plate on the front the 74mm XL one will fit the 70mm motor.

Quote:

Originally Posted by FG101C (Post 249430)
Well I'll say this. Comparing a tekno NEU 1515/1/Y/F (2200kv) to the Medusa 36-60-2000kv. The Medusa's must not be very efficient motors. I had the NEU in an SC8, geared 13/46 on 5s and the NEU never got hot, 110 at best. I have the Medusa in my D8 buggy, geared 13/48 on 5s and it gets real hot real quick. The SC8 has diff gearing of 43/10, the D8 also uses 43/10. The D8 and the SC8 also had the same size tires, same set of tires for that matter.

So I went ahead and ordered a NEU 1512/2.5/D/F for the buggy and the Medusa will go in my basher/Corr truck project.

The Neu is 15mm longer and 4mm wider, that's where it gets it's torque. Compare a 70mm MedUsa to the Neu and it'll be closer.

drkdgglr 01.07.2009 04:16 AM

Quote:

Originally Posted by Unsullied_Spy (Post 249654)
I like how it runs on 4s. It's very powerful and even with the soft start cranked up on my MGM it'll launch like a scalded dog. The 70mm would be fine, but I like that extra bit of power :yipi: I've still got the massive stock tires on mine (and I actually like them a lot) so that needs more power to move around.

I too have the stock tire/wheel combo. Only mods I did to the muggy are rcm batt.tray, rcm motor mount, steering mod, single servo tray, mud guards. I think there might me some power advantage when you run a hv setup. Also 4s 2000 kv =30.000rpm and 8s 1200kv = 35000 rpm.

Would it be safe to say that a 70mm on 8s has as much power as a 80mm on 4s?

Unsullied_Spy 01.07.2009 04:52 AM

The 80mm will have more torque provided that your ESC and batts are capable of putting out enough amperage. It would be interesting to put my 70mm (2000KV) motor in my Muggy with the same pinion and see what kind of difference there would be. I ran a 24T pinion at first just to see how insane it could get but I'm running a more conservative 16T now. If I can get a cameraman I'll try to get some video of it, it powerslides very nicely and busts through several inches of snow. As long as I don't high-center it on the snow it can blow through.

EDIT: Did you do anything to the Center Diff? The first thing I did after stripping the nitro crap off when I bought mine was pull the CD and put 30K fluid in it. I can still wheelie and it balloons the front wheels as it does it but it really helps to make it 4wd instead of FWD :lol: If you get the 80mm you'll probably also want to oil up the front diff, I can unload mine pretty easily and will probably get some 10K for it to hook up through on-power cornering.

drkdgglr 01.07.2009 05:09 AM

Quote:

Originally Posted by Unsullied_Spy (Post 249722)
The 80mm will have more torque provided that your ESC and batts are capable of putting out enough amperage. It would be interesting to put my 70mm (2000KV) motor in my Muggy with the same pinion and see what kind of difference there would be. I ran a 24T pinion at first just to see how insane it could get but I'm running a more conservative 16T now. If I can get a cameraman I'll try to get some video of it, it powerslides very nicely and busts through several inches of snow. As long as I don't high-center it on the snow it can blow through.

EDIT: Did you do anything to the Center Diff? The first thing I did after stripping the nitro crap off when I bought mine was pull the CD and put 30K fluid in it. I can still wheelie and it balloons the front wheels as it does it but it really helps to make it 4wd instead of FWD :lol: If you get the 80mm you'll probably also want to oil up the front diff, I can unload mine pretty easily and will probably get some 10K for it to hook up through on-power cornering.

I put 30k in the center, 10k in front an 7k in the rear. I also have a robinson racing 48spur in the center. I'm thinking of replacing that one with a 45t losi 8ight spur, or just the stock 46.

I was geard pretty conservative on my first run, 11/48. That's because I wasn't sure how the 60mm would handle the muggy. Larger pinions are on the way. Right now I have my muggy set up with a mega acn 22/45/2 and am wating for the outside temps to rise (freezing here right now, and already broke rear arms bc of that and my crappy driving).

EDIT: I also replaced the plastic diff housings with losi alu ones.

Unsullied_Spy 01.07.2009 05:30 AM

Why the RRP spur? The stock one is free and seems tough as nails so far. Your diff setup should handle the power nicely. It's freezing here too, but that has never stopped me before :lol: I finally managed to break my tricked-out Rustler the other night...-40 degrees and a full speed impact with a car trailer and all I broke was a camber link :lol:

As you can tell I wasn't burdened with an over-abundance of common sense, I love to run my RCs and I'm not letting mother nature tell me no :whip:

drkdgglr 01.07.2009 05:42 AM

Quote:

Originally Posted by Unsullied_Spy (Post 249730)
Why the RRP spur?

I bought a used muggy, and the spur looked pretty beat up. As I wanted to start conservatively, I got the RR spur. Wasn't sure how heavy the muggy would be after the conversion to brushless. But now I know, and am going back to stock as soon as I get a new spur.

FG101C 01.07.2009 06:03 AM

Quote:

Originally Posted by MetalMan (Post 249637)
Undergeared? Running the numbers in the calc shows a top speed of only about 30mph. IMO an 18t pinion would be a better choice for about 40mph.

I guess it's possible. I have a 16 tooth, will try 16/48 and play with the timing. If the company is suggesting 8-15 degree timing then I'll put the MMM at "Normal" and try that.

Maybe these motors are absolute beasts and can handle just about anything you throw at them, except undergearing.

slash_48 01.07.2009 10:44 PM

What kind of temp are you guy getting on the ecs. I have the medusa 36-50 4800 the motor hasn't got above 90 but my mamba max esc. gets 135 to 150. My max amp 2s 6500 battery only get about 85. This is in a slash geared 23/83. Very impressed with this motor.

sleebus.jones 01.08.2009 09:13 AM

You don't have anything to worry about with those temps. 4 polers work the esc harder, so that's probably the source of your heat. I'd only be concerned if the ESC is going over 200.

FastXR 01.08.2009 12:30 PM

Has anyone recieved one of the new 70mm afterburners? If so what are your thoughts, a comparison to the Neu 1515 would be great.

JesseV 01.08.2009 01:13 PM

Quote:

Originally Posted by FastXR (Post 250053)
Has anyone recieved one of the new 70mm afterburners? If so what are your thoughts, a comparison to the Neu 1515 would be great.

Quote:

Originally Posted by JesseV (Post 248753)
New graphs, older ones were 1 min drive, these 20min. Well they are overwritten to the old post too:

http://jesi.5cyl.net/RC/tmp/jezze/ampvolt.JPG
http://jesi.5cyl.net/RC/tmp/jezze/watti.JPG

Nice peak power. :)
Average amps even lower on the 20min timeline than on the first one minute.

Also it runs pretty cool. About same temp as battery. Less than 100F. Ill check temps more when i go drive next time.

4S zippy 5000mAh, 1/8 buggy, MMM, 2300kv 70mm Medusa.

sleebus.jones 01.08.2009 07:49 PM

Oh. Heck. Yes.

My 1600kv 70mm shipped today, priority mail. I sure hope it makes it here by Saturday....or I'll have to wait until Monday. :cry:

suicideneil 01.08.2009 07:59 PM

What were you gonna that on again Sleeb- 6s A123 wasnt it? I look forward to your findings :yes:

sleebus.jones 01.08.2009 08:09 PM

Yup, 6S A123 in my Hyper 7. Should be pretty spunky.

FastXR 01.08.2009 08:20 PM

Thanks guys, how do you think the 70mm 1600kv Medusa would against a Neu 1515 1700kv motor in a truggy on the track?

pedeboi364 01.08.2009 08:29 PM

...MM+5s+ (Medusa, instert here)= blow the doors off ur delorian...

suicideneil 01.08.2009 08:34 PM

The neu and medusas of similar spec will perform in a similar fashion I imagine- not enough users to give a definitive answer really. For the money, a 70mm medusa would perform as well as you need it too if the setup is good (gearing/voltage/kv choice). Suck it an see as us Brits say...

Basso 01.08.2009 10:22 PM

I would say for the money the Medusa will perform better, since I can buy 2 for the price of one Neu!

George16 01.08.2009 11:17 PM

For the money, the Medusa is the better choice imo.

I have a TeknoRC Neu 1515 1Y running on 5S on my ST-RR and a Medusa 36-70-2000Kv running on 5S on my convertd revo. The performance difference between is pretty much negligible. I don't have an Eagle tree to back up my experience but it is how I felt when running both trucks in the soccer field on the same afternoon (swapping trucks with my 8-year old son). Temps were very nice. It was actually running cooler than the Tekno Neu due to the bigger holes in front of the Medusa motor. Highest temp was 120F on the Medusa while the Nue was 132F.

JesseV 01.09.2009 09:52 AM

After 10min of driving on a track today the 70mm 2300kv motor temp was only 35C (95F). But my zippy is dying since it got some damage last time so I stopped driving, it was 47C. ;p

Took a little video too http://www.youtube.com/watch?v=SkauGYdagKU

Mozzy 01.09.2009 10:59 AM

FINALLY!!!! I got the email that my Medusa'a are on their way.

Should have them next week sometime..............I hope.

FG101C 01.10.2009 11:20 PM

Ok, I think I got my buggy gearing right for the 36-60-2000kv motor. 15/48, with 43/10 diff's. This motor was amazing on the track on 5s. Timing set to normal, but I only got 15 minutes. I'm shooting for twenty and it could be a touch slower so I will set the timing to lowest and see where the runtime and temps are. Over half the price of a NEU, I'll take two more please.

sleebus.jones 01.13.2009 09:50 PM

2 Attachment(s)
I got it, and it's IN!

<a href="http://sleebus.vox.com/library/photo/6a00e398a943af00040109d0fdfe8d000f.html"><img src="http://a5.vox.com/6a00e398a943af00040109d0fdfe8d000f-500pi" alt="IMG00082.JPG" title="IMG00082.JPG" /></a><br />
<a href="http://sleebus.vox.com/library/photo/6a00e398a943af00040109d0fdfe8d000f.html">IMG00082. JPG</a> from <a href="http://sleebus.vox.com/">http://sleebus.vox.com/</a>

Works great, I like it much better than the Feigao. Significantly more efficient, judging by how many milliamps I used for my run. I think this is the beginning of a beautiful relationship!

Oh and it's a 1600kv 70mm on 6S A123.

MTBikerTim 01.13.2009 10:03 PM

Anyone know when more 80mm are going to be shipping? I'm really keen.

anson 01.13.2009 10:08 PM

I ordered mine on the 11th of Dec. Patiently waiting for mine, from this thread it looks like people who ordered before Dec are getting their shipping notices, so I guess I am moving forward in the queue.

transtalon 01.13.2009 11:10 PM

Medusa
 
I called them and spoke to Jeff, hea said they were having problems
with the magnets on the 80 mm motor. He said they will have to fix
the problem. It could be a couple of weeks before they start
receiving more motor.

anson 01.13.2009 11:17 PM

Oh well, good things come to those that wait right?



...Right?

Unsullied_Spy 01.13.2009 11:24 PM

Quote:

Originally Posted by transtalon (Post 251954)
I called them and spoke to Jeff, hea said they were having problems
with the magnets on the 80 mm motor. He said they will have to fix
the problem. It could be a couple of weeks before they start
receiving more motor.

This problem wouldn't be in the older motors as well, would it?:surprised:


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