UPDATE

Got the MM problems worked out. I changed the timing to low and start power at low...now it runs pretty good on 12 cells, just not very fast or much power. It could be a good qualifying setup though when lipos aren't available.

Got a package today from dafni with a kick ass body and fan for my MM!! can't believe how well this thing is painted. It's my first "real" authentic custom painted body. All i've had before this was stockers and single schemes.
DAFNI IS DA MAN!!:party:

Also made a slighly cleaner layout. I'm using a modified cardboard box (from the Feigao motor) as my battery mount. Pretty ghetto but hey, it works(sorta kinda), and it was free. I use tape to keep the batteries in LOL. Man is sounds so much worse once I type it on the computer screen lmao.

http://i66.photobucket.com/albums/h2...2/DSC08222.jpg
http://i66.photobucket.com/albums/h2...2/DSC08223.jpg
http://i66.photobucket.com/albums/h2...2/DSC08224.jpg
http://i66.photobucket.com/albums/h2...2/DSC08225.jpg


Peace

One question..

What size screws will work for mounting a fan...

I used 3mm self tapping screws to mount the fan to my MM ESC.

Decided to mount the fan/MM a different way. cut out a piece of spare plastic and mounted to the diff. then took a piece of the "nitro" center diff mount to screw the fan into. Works out alot better than i initially thought. WOW this fan makes a difference.

http://i66.photobucket.com/albums/h2...2/DSC08226.jpg

Glad you like it! Looks good on your truck.

I've been running pretty light on this setup here:

MM/ Fan /RX pack
Feigao 8XL
Zippy-H 5000mah 4S lipo

Here are the temps after about 8 minutes of running pretty lightly:

MM/Fan/RX pack= 155F
8XL=165-170F
Lipo=115F

Once the lipos get to 115 degrees I generally just shut everything down since I don't want to ruin the packs...
I'm running pretty lightly and the temps manage to get this hot...everything is hot...

I'm geared 13/46(whatever stock spur is) which is pretty low, I don't understand why i'm seeing these temps.

Thats when I made the guess that these temps may be directed from the Feigao motor? Do you think that is possible?

I want a setup that will run real cool and efficiently under race conditions, this is TOTALLY far from it. If the temps are like this after running how I have theres something wrong here..

Anybody got any motor suggestions that will be easy on the packs/all electronics, but still give me nitro like capabilities?
It seems like all other people running their lipos barely get over 100 degrees...I don't understand...

Need help on this!

Thanks boys

steve

* Running with body off BTW!!

I'm not familiar with that pack. If the pack isn't up to the task, it won't matter what motor you use. My Enerland packs stay cool and my MaxAmps packs run warm. Cell quality.

These are pretty nice packs, I mean they were cheap but many people have said they work great. I bought these from jhautz and he said he could barely get them to 100 degrees, Not sure about his amp draw setup tho.

did you try to put the 8xl shaft in the 9xl i sent you?

also what settings are you running?

the lower kv of the 9xl will help some, but only give you like 30 mph

No I didn't try that actually.

I'll do that tomorrow and try again.

I tried that 9XL you sent and the esc was at like 190 lol. It has some serious torque though. With that new rotor I bet it will run fantastic...

I'm thinking about getting this one guys 8XL Hacker he's selling here. If I got the hacker i'd be running that on the MM and also when I can get a MMM. Just still concerned about temps and efficiency.

yeah i had the same problum with it, i think when i reglued the mag. i did it 180* off from where it should have been , so it makes the esc. run hot

try the lowest timing and start power settings as well, and punch control at like 60%

Alright will do.

:gasp:Don't be putting those nice lipos in that battery box with the screws poking up into the bottom of them. :tongue: Denting your lipo is the worst thing you can do to it. It creates a weak spot in the cell that will heat up more quickly under load and cause the battery to fail more quickly. Your next purchase should be a proper battery box for those lipos. Do it before you ruin the packs. Those cells are wider than the flightpower/enerland packs so you will need to get a wider than normal battery box. I just had Mike make one for me that will fit those things like a glove. Order one from Mike and tell him you want his new one piece battery box with the same internal dimensions as the one he just made for me. It will fit those packs perfectly.

I am running the 5s versions of those exact packs in my buggy and truggy and they have been performing very well for the money. No they are not flighpowers, but they hold votage well and have very low internal resistance. and at 2/5 the price of enerland its hard to go wrong IMO. Just make sure you take care and balance them properly when you charge them. Those 2 packs you got only had 1 or 2 cycles on them. They ran on the track in my buggy with a Lehner 1940/7 and a MMM and temped at barely over 100 degrees when I ran them. I was going to switch over to 4s in my buggy and was testing this setup using the motor from my savage, but after trying it I decided I would stick to the 5s setup I had. Everything else I own runs on 5s so why make one buggy that needs its own special packs.

Those motor temps do look a bit high, but unfortunatly the Feigao is just going to run hot when compared to a Neu. Dont let it bug you, just do what you have to to keep it under 200 degrees. It is what it is and to expect temps comparable to a Neu is not realistic. Adding a fan on the motor may not be a bad idea to help you keep the motor temps down a little bit. The speedo and lipo temps dont look to bad to me.

Have to checked to make sure the drivetrain is running smooth and you dont have any biding from a bad bearing or something and the there is nothing rubbing anywhere? Also, where are you running? What kind of surface?

All in all it looks like you have the makings of a nice conversion there.

I have run a Zippy R 6s 4150 pack in my Revo and it did run warmer than my FP 6s 5000 pack does I dont own a temp gun so I dont know the exact temp

Thanks for the input,,

I'm not using that battery box anymore, i removed two of the mud guard nuts&screws to allow me to use velcro to strap it to the chassis real nice without having those screws dig into the pack. It works real good and keeps the pack in place without scratching/denting them.

http://i66.photobucket.com/albums/h2...2/DSC08228.jpg
http://i66.photobucket.com/albums/h2...2/DSC08227.jpg




I'll have to send Mike an email real quick about that battery box because I just ordered one last fri. along with some other things.

I was just running in the street, went into the grass a little, but I was really just testing it out.

Got the new RCM battery tray from mike. This thing is PERFECT size for my batts...they fit real snug but not too tight..
I tried the 9XL with a rotor from an 8XL, and the temps were still very high on the ESC (165F with fan)
I changed back to the 8XL and here were the temps after 1 pack of running

MM: 145F
8XL: 168F
4S ZippyH Lipo: 115F

I still want to try and keep the lipo under 100 degrees, but I can't find a way to make it happen. I programmed my MM for 100% punch control and timing as low as it can go. Running a receiver pack also. You guys know how to keep the lipo temps down?
And I am really considering buying a Neu 1515 1Y-If i can find one that is in my price range.
I'm also beginning to realize that 4S may not be a very good setup for a truggy, but I don't want to go up to 5S because then it just gets way to expensive and out of my budget. I don't think I can race with 4S either because the temps of these packs under race conditions will just skyrocket, and I do not need to ruin my pair of lipos.
Also, braking, and cogging is still a big issue...I have no clue why I tried to narrow everything down as much as possible.
You guys have any insight?

Been having some real inconsistancies with temperatures between runs.

Heres after 10 minutes of running
MM: 170F
8XL:200F
4S Lipo: 98F

Does this mean i'm undergeared?
I'm geared 13/46 right now.

well the 8xl will always run hot but i think gearing is good try 14/46 though. I run that in a hyper 7 and all is well. Might just be the motor itself, also didnt read through the whole thread but do you have a cap on the mm? Might be a good idea to add one if you dont.

No i do not have a cap on the MM.

I actually do have a 14T RCM pinion, i'll install that and see what happens.

yeah it should help the mm temps some

Wow i just can't create a realiable setup can I?


After running a pack thru the mugen, i temp'd the motor and it read 209F...(feigao 8XL) Speedo was 143F, Lipo was 99F...

I thought that was way too hot for a motor of any type...and it was. I don't even know why it heat up so much since i'm geared real conservatively..13/46

I tried running it again yesterday, and the motor won't even spool up! It won't even move on the pavement. If I lift it off the ground and spin the tires, it cogs insanely and i'll guess the motor only pushs out 3000rpm on the 4S lipo. Is the 8XL TRASHED ALREADY?? I've run maybe 8 packs through it.

The wires are soldered perfectly....all connections are good...

I just don't think i'll be able to continue this project as it is going, i may have to abandon it. I don't have 100 bucks to drop down on another part, not to mention I still saved $200 for a MMM that I still cannot get my hands on before school starts.

Motor demagged from the heat. Open it up, and the magnet will probably be cracked or completely apart from the shaft. This happened to me two times on my 9xl motor. Feigao has a great warranty so I got a brand new one in the end. :wink: I did it through Mike though, so he sent it to them... :whistle:

Hey I sent mike an e-mail about the failed motor about 2 1/2 weeks ago and i still have no reply:oh:

....I just need a motor to run.

I was so close to purchasing a 1512 motor from mikes store, but I realized, i'm going to be blowing $250 on just the motor, when I still need the MMM, expecially when the combo (when it comes out) is under $300.

OR if anybody has a good MMM Or Neu setup to sell i'd jump on that deal...

But anyways I still need that 8XL replacement...How can i contact mike??

Well....I just got my MMM at my LHS!!!

Pretty excited about that, but i'm still having problems contacting mike again lol.

I need that 8XL replacement, they do have a lifetime warranty am i correct?

Just the little update.

Anybody have any opinions on these?
http://www.hobbycity.com/hobbycity/s...00mAh_25C_4S1P

http://www.hobbycity.com/hobbycity/s...0C_Lipoly_Pack

those zippy r 4s 4800 work great for me

What temps are you getting on the batts with that 1Y?

highest temp i got is 110

Wow really....thats good.

You see i'm getting temps of 115 with my Zippy-H 5000mah lipos, and i'm not even running them real hard at all with an 8XL.

And is it normal for the lipo to slightly swell up after the run? My packs do that but they always go back to normal after 15 minutes...?

i think 115 is ok BUT i dont think swelling is fine.it happened to me once with a truerc pack and never used it since.just my opinion though.my guess is youll be better with 5s/6s with a smaller pinon

cornolio, thanks for the input..:)

WELL..........Wanna know what happened today with my NEW MMM V2?









Nothing but good news!!!!! :) :D

It seems as if the Mamba Monster has solved all of the problems i have been having...this is rediculous....

FIRST, I have to tell you my old setup temps....

OLD SETUP:
MM W/ Fan: 180 F
Feigao 8XL : 210F
Zippy 4S lipo : 115 F



I had that old Feigao 9XL that Entjoles gave me and I decided, hey what the heck, i'll give this motor another try...(it heated up my MM to 180 degrees....and it ran at 180...)

So I solder'd up some bullet connectors on the MMM to connect to the motor...Solder'd up a deans on the MMM too...

Got everything setup, programmed the MMM...and I just hoped for the best...

I turned it on outside, started giving it throttle...and MAN, this speedo is smooth.. No cogging what-so-ever at startup...

Then I gave it a little more throttle...it EXPLODED with speed...The MM just wasn't capable of putting the 4S lipo power to the ground it doesn't seem like, now that I look back at it.

I took it out to the street (keep in mind this was a few minutes ago and it is dark...)
And I gave it 3/4 throttle for a second...its too fast (especially in the dark)..I couldn't go full...I was afraid I couldn't see it...LOL.

I bring it in for temps after running it around for a good 10 minutes non-stop..was running pretty light on it but STILL... here are the temps:

NEW SETUP:

MMM: 86F
Feigao 9XL: 120F
Zippy 4S lipo: 85F



What a difference...
The most important purchase was the MMM...It solved ALL my problems...now my truck runs great...

Nice project man, BTW what is your screen name at the rccna?

It's its me lol


rustlerboi1052 is me over at RCCNA and everywhere else.

lolololol!! whats up man!