READY 2 BUY....Need opinions please....
 

I'm finally ready to buy my brushless rig for my Supermaxx E-maxx and want your opinions. Especially from RCM Mike, JHAUTZ, and SERUM (plus anyone else with experience with these products)

I'm looking at one of the two packages:

NEU 1515
UBEC
Mamba Maxx ESC

or

FEIGAO 540C 8XL
UBEC
Mamba Maxx ESC

This will power my Supermaxx Equipped Emaxx. I'll be using GP3300's in 7 or 8 cell configuration (14 or 16 total cells so 1.165x14 = 16.31v or 1.165 * 16 = 18.64v).

I like the NEU 1515 but would rather keep the additional $190 in my pocket if the performance difference between the NEU and the FEIGAO is comparable. Will I need fans for the Feigao? The ESC? The NEU?

I'd consider a Lehner to if it makes more sense.

I'll be converting to Li-Po at some point, probably when the MMM ESC shows up and I can run 6S.

So there it is. Now I need your feedback so I can give Mike an order this week.

What say you????

Jhautz did some testing and found that the 19xx LMTs did much better with the MM than the Neu motors...

Can you explain "Better"? Smoother operation? More Speed? What???

Sorry, I thought you might know the thread: http://www.rc-monster.com/forum/show...9&postcount=30

The Neu cogged a lot under hard acceleration, but the LMT was smooth. There's even a video in that post...

I like the lmt motors alot. The neus are nice as well. I have seen some differences between the 4 pole and 2 pole motors in smoothness.

Hey CHC, what esc are you running the neu's with?

If you are planning on running 16 cells on an alloyed out Maxx, I'm not convinced tha tthe MM is the right choice. I think the MM will do nicely in a 8.5lb buggy that is intended to be geared for under 40 for the track, but the bigger/heavier vehicle will draw more amps. The last thing you want is a ESC that is running ragged edge. IMO 16 cells in a maxx size vehicle is ragged edge for the MM. With the little testing I did with the MM I'm not all that thrilled with it as a large scale ESC. DOnt get me wrong...Its amazing that it can do what it does, but I still think you are better off with a speedo that was intended for the job. Read the thread that Brian linked to about what I saw on the MM/Neu combo.

Think about your options for the $ you have to spend.

You could go with the cheaper motor and take the extra $190 from the motor and spend and extra $140 and upgrade the MM to a Quark. Then later when you want to you can upgrade to any motor you want. The quark will run them all and its is still the smoothest esc Ive used. And your still $50 ahaed of the Mamba/Neu combo.

Another thing to consider might be... Right now for like $15 dollars more than the Neu 1515/Mamba combo you could get a Lehner 1940 and Warrior 9920 combo. This would be a killer combo in an emaxx. Heck with the 9920 being only $150 right now, once they go back to regular price($200) you could probably get your $150 back for it by selling it ''gentley'' used on ebay. And then get the MMM when it comes out.


EDIT: Sorry for the book....But you asked.:018:

Looks like I'm not the only one with long explanations! ;)

J/K Jhautz. :)

I know... I tend to ramble:010:

As do I...

Just an FYI... Total coincidence but I toasted my Mamaba Maxx on 5s tonight. First pull of the throttle on a fully charged 5s pack running a Neu 1515. It was just a light easy start not even a hard throttle pull. Its just not cut out to be reliable on that kind of voltage.

Now I really wouldnt recomend the MM for a 16 cell application. 16 cell is even higher voltage than 5s.

Pushing the mm with 16 cells is something i would not do.

i have got a Neu and a Lehner, and the Lehner is topnotch stuff. (as is the Neu) since the Lehner is a 2 pole it's easier to be controlled than the Neu for the Mamba Maxx.

If you are planning on running 14-16 cells the 9XL would be a good choice. My 8XL gets relative hot on 16 cells. Doable though, but cooler is nicer IMO.

Perhaps you are better of with getting an MGM16016 controller? or a 9920 with an LVC.

I can highly recommend the MGM, I have been running it with 5s on a 7xl with no problems at all. The built in voltage cutoff works well too.

I can run 12, 14, 0r 16 cell configurations. I built (4) 6-cell packs but have the cells available to make them 7 or 8 cell packs.

I don't want to fry the MM and I know that my 16 cell config is .15v over 5S. I like the programmability of the MM and that its US made but maybe it's not all that necessary to have the PC programmability. OR maybe I should just run 12 or 14 cells.

What is the difference between a LMT 1940 and a LMT 1950?

I have the cash now to do this and want to do it right so the Lehner is an option but if I can get a nice combo without dropping $600+ to do it that would be my preference.

BTW, LONG responses are welcome. I'm desperately seeking valuable advice & input!

10mm shorter in length and smaller shaft (3.175mm vs 4mm on the 1950) according to the LMT website...

Thanks Brian.

Another question.........

I would like an ESC that behaves like the EVX did. Forward, Backward, and brakes. Nothing funky, no wierd delays, etc. My truck is not race only at this time and I like to use reverse sometimes to get out of a jam.

What ESC offers the best "trouble free" user friendly operation?

I'd rather spend more on the ESC & have to settle for a Feigao "XL" and have a reliable easy to use system then something tempermental, quirky, and ragged edge.

So which one(s) are the best? Quark, MGM? (no one ever seems to talk about them......), BK?

How is the BK software?

Thanks for entertaining the large number of questions I have!

BK is about the easiest you can use IMO. Easy programing, a lot like the evx. You could get the 9920 and be good on 5s. I have ran my 9920 on 5s 10xl and it's good to go!

Is it smooth? Are there wierd delays going from forward to reverse? Anything unusual with the brakes?

Anyone have the software I could look at????

There are no weird delays. The nice thing about them, is the soft brake, so it just don't slam into reverse when you hit the reverse, it brakes nicely, then goes into reverse. You will need an LVC, but that's easy to put in, just connect it to your UBEC plug and you're good to go. Get the Li Savaer Mike has, it's for cars.

I assume that the LVC is not needed until I move to Li-Po correct?

Also, in you opinion would it be worth the additional $75 to get the 12020 given that it's on a MAXX that will weight 9-10 pounds?

Correct. The 12020 would be a nice addition, but the 9920 is up to the task. How many cells are going to run?
My maxx used to weight 12.5 lbs with the 9920.

12, 14, or 16 NiMh GP3300's for the near future. Specifically i was planning on 16 but could easily back it down to 14 if the motor or ESC would perform batter as a result.

My weight estimate may be off. Maybe it will be 11-12 lbs. Still not together enough to weight it!

I used to run the 9920 on 5s and 16 cells, no probs.

The shaft on a 1940 is 4mm. Other than that its a little shorter than the 1950. The 1940 is PLENTY of motor for a maxx. I really love mine in my maxx. Its actually my favorite maxx motor right now. If you can swing it go for the Lehner 1940. Totally worth it IMO.

The BK controllers have a great braking/reverse setup. But the quark is the smoothest. Not a huge difference though. I have not tryed a MGM... (still on the to do list someday) so Im not sure how that compares

The 9920 will handle 20 cell or 6s Lipo. The Quark is rated for 6s, but doesnt really do well with it IMO. 17cells or 5s is about its limit. It starts to get weird cogging issues at 6s. Not an issue if you are looking at 16cells or 5s max.

The MGMs with the newest software are supposed to be great. They runn the 4 poll Neus just like Quark from what I hear. They also had that weird braking blip fixxed.

I would not push the 9920 to 6s! Nor would I push it to 20 cells. Mine ran warm on 16 and the 5s, it would definately run hot on anything more. Unless you geared your system down. If you were going to run more cells, then go for the 12020. Why push the esc to the limitations? :032:

I thought someone here said that the Quark had a wierd delay or other quirk with the reverse or brake action? Am I mistaken?


Where would I get a copy ofthe MGM or BK software to check out.

For the BK software, just go to the bk website. Also, the Quark does have a delay. ou may be able to find that on the Sky tech website, not sure though. I'm bad with references! Sorry man! Looking for a rear skid are ya? LOL

Yeah, the Quark doesn't have a brake in reverse. So, if you are moving in reverse and then throttle to brake, the controller will simply go forward without stopping. A little hard on the drivetrain.

However, there is a setting that does help a little - I think it's adding some drag brake, but don't hold me to that.

@Jhautz: I wonder when LMT started putting a 4mm shaft on the 1940's. According to the LMT site, the 1940 and below have 3017mm axle diameter, while the 1950 has a 5mm axle (I apparently was mistaken before about the 1950).

Not really, but I have new 3mm Ti skids from GA and they are heavier than I thought so i f I can snag a deal on some 2mm Ti skids that would be cool. No need for the additional weight really.

Anyone know the link to BK's site???

Yeah, 3mm is over kill. I have two ti rears going now. one is brand new, looks like you placed a bid on it.

http://www.bk-electronics.com/bk_eng.html

nevermind.........got it.

indeed I do. Funny how that worked out.

Who makes them and what's your reserve?

Any fronts?

They are GA of course! LOL, need the jing for some other goodies! LOL, can't remember the reserve I put on that thing! Let me look....

Edit. 20.00, here is what I originally got from them http://www.greatassemblyrc.com/Store...44&InfoID=3583
the ones they have with the extended upper part is at 42.00 for one i think

I run the quark 80b with neu 1512 2.5d.

Procharged, YGPM

What kind of vehicle? got any weight and gearing info? Just wondering what the 80B can handle.

measure them, they are even thicker than 3mm.. they are beefy.. I am using the 2mm's on my truck, and they are thicker than 2mm.

About the 9920; i used it on my heavy savage with 16 cells and the 8XL, and it goes strong. the 12020 uses an extra board with more fetts. other than that, it's the same.

The 9920 is more than capable in an MT. The 12020, like Serum said, is the same, just another board, but it's nice too. I have both esc's and like them both.