My overview of the Mamba Max 5700
 

Hi guys, been a while since i posted, but i decided to post on my opinions of the Mamba Max 5700 i had since early mid august.

So far i haven't had any troubles with it other than esc batteries and motor are in the 150 to 160 range(hotter than anything i ever had, except nitro's) currently running 16/87 in t4, but never in the danger zone so not really worried .

The power is almost unbelievable from 6 cells (lipo are a no-no on my track) If i didn't see it run i would have not believe it. On my track we got a lot of grass in a couple sections and it usually wheelies out of those corners (not even the nitro's will do that:cool: ).

As much as i love the power i love the programming, I had troubles using the novak setup, but with the computer its a breeze. I'm still looking for a good setup for my track, it's got too much, but nice to be able to program 5 minutes befor i leave instead of missing the beep or light in program mode :035: .

All in all i would buy it again at twice the price, with all you get for the price you pay its an awsome deal. I'm willing wait for the Monster Max to come out, if the quality that is in the mamba max is in the monster max, I'll be first in line to get one

Thank you Castle Creations for making my first sensorless experience a great one, and look foreward to what comes next.

Have you tried gearing up or down? I actually geared up my B4/4600 and it ran cooler than before. It's possible you are undergeared. Just a thought.

I will be running a T4/5700 in a couple weeks....

Must agree with the performance on 6 cells. You NEED to see it to belive it. For just 6 nimhs it really does run well.

I love my Mamba, the performance is just perfect and you can always program it to exactly what you want from it, which gives alot of flexibility.

My only hope is that the Monster Max is gonna be as good as the Mamba Max with double the capabilities.

I don't doubt that cap.. I am sure they will be unbeatable, and they will be a nightmare for the current producers..

With castlecreations you know their price needs to go down and their service will be top-notch.

True.. I won't miss the overpriced overrated crap that we've had to live with till now. Castle will put a big hurt on them if they don't raise their game.

Hadn't though about gearing up, because both are near the same temp( if motor was higher maybe) but will try a 20 and see if it helps.
Glassdoctor, the t4 handles the power great, no problems with the transmission, but have broke arms and upper links so invest in titanium, just broke a upper link ball yesterday. Its a real nasty combo

Very right.
I saw the schulze 60.12 for more than $260 and I bought a phoenix 60 controller for less than $120, but its not made for cars, though.
The Mamba Max is way more powerful than the U-Force even with half the price.
Surely they're unbeatable.

too bad they want to score with a motor/controller combo. A controller would do, and according to them, the selection of the motor takes so long.

I hope they will be more sensible in kv value with those monster.. the 7700 kind of surprised me.

I'm actually a little dissapointed in my Mamba Max. Although it might just be my setup. I'm running the 5700 in a Lightning Stadium 10 which is a little heavier than many 1/10 scale vehicles. And it's 4wd. My problem is the heat build up.

I have (2) 3100 mah Polyquest 3c lipos in parallel to give me 6200 mah, and I'm running a 13 tooth pinion. Timing advance is on lowest and I have a fan on the motor and esc. I raced for the first time this weekend and it shut down from heat. I measured it at about 185 (esc). They say it's safe up to around 200, but I don't like it. I ordered a 12 tooth pinion, but I'm not convinced it will make a huge difference.

I think I might go to a Neu motor that runs more efficiently. I don't know - anyone have any ideas or help for me. I'm a little bummed.

I would personally have taken a lighter version than the 5700.

You think I should have gotten the 4600? Do you think the 12 tooth pinion will help much?

What is your exact gearing ratio and wheel diameter?

Oh crap, you must be an engineer! I'm totally unprepared for that. Um, lets see . . . the last time I was looking for tires I'm pretty sure my wheel diameter was 4.75". Oh, and the spur gear is 54 tooth. Does that help?

While it may work on an nitro conversion (HPI) I wouldn't recomend it for anything over 5 -6 pounds because its more designed for mainstream electrics (the MT is a little heavy) the esc would work but i think the motors are a little high kv for the application. if i were going to do one i'd go with a motor in the 3500kv range, maybe lower

Yeah, especially with rather direct-drive vehicles.

I think I might go to a better motor. Any suggestions? I've used the Neu motors in the past and really like them. Oh, and do you think the change in pinion will make much difference?

Do you know what gears are used in the differential etc?

If you give me more details, we can from the desired topspeed what gearing/motor you need.

Nothing wrong with the MM motors but 3s lipo on a 5700 is a pretty hot setup. A 4600 would be a much better match. If you get a Neu motor I would do some calcs to pick a good kv for your setup. Figure the final drive ratio and rpms expected, etc...

Your gear ratio doesn't sound too far off... should be about the same FDR as a regular 1/10 truck, but you do have 4wd and it's no doubt heavier than say a T4.

do he MM motors use segmented magnets? i presume not?

No, I don't actually. However, on the replacement parts list it lists a final gear 40t and a final gear 13t. Beyond that, I'm at a little bit of a loss. I haven't had it for that long and haven't opened up the diffs yet. I'm pretty sure it's the typical spider diffs. Probably the same as the Lightning Truggy but smaller. Sorry I'm not more help there.

It's heavier than a T4, but I don't know how much more. I'll have to weigh it. I think it's about 5lbs.

Let's see if hb provides exlploded views then.. Hang on..

Personally, I dont like to use none segmented motors in racing.
A segmented motor like a Neu or LMT 19 series would take the heat of a flaming race.

The motor inmho, is not prepared to fully operate in a perfect condition in a nitro car even if it was a 1/10 scale machine, but if you want to make it do its job, a highend motor with a high turn winding is very good actually. Consider a motor with a 2700-3700 rpm at 14-15 volts for good speed and temp.

You can go for a Kontronik Twist-33 or Twist-37 motor. They incorporate segmented rotors, built in heatsink and nicely priced.( between 140-160 dollars). They're 480 size motors, but will perform way better than the Mamba Max motors.

Here's a pic

Thanks for the info Captain. But what exactly do you mean about the Mamba ESC not working best in a nitro vehicle?

I mean the motor and the controller wont work as effecient as they are supposed to in a lightweight T4, B4, Touring cars or pan cars or even an electric 4wd buggy.
The nitro stadium truck you have is specifically designed to handle the power of nitro engines. The drivetrain is thus heavy and sturdy and your 5400 motor was wrongfully chosen for the conversion- its for electric rigs meant to go head to head with their nitro counter parts. You need a much lower KV of a highend motor.
I dont have any experience with the Neu, but since they do have segmented rotors, they're up for the job. They're very popular and powerful as well.
As for the Lehner.. I would choose the 1920/9 or 10 turn motor.
The Kontroniks are good for your case, too. You can either get the Twist33 or 37 or go for the big Kontronik FUN500-27 motor ( same dimension as the Lehner and Mamba Max), but with 5mm shaft.
The Lehners Neus and Kontronik's big motors were actually made to replace a nitro engine in a heli or a big air plane and get a performance as good as a nitro engine or slightly better.

No they don't Serum, looking at the article in rc car action and its solid.

Captian, not sure how the kontronic would work with a mamba, but the mamba motor works real good with awsome power throughout the pack, I've never had a cog, thermal or fade of any kind with this setup, even with back to back packs.

Yes i do race it when its not breaking parts(my driving)

I believe you Crazyjr. I dont think the 5400 would actually make a good performance in Sower's lightning stadium truck, though.
He either should go to the 4600 or simply pick up himself a good segmented motor and couple it with the Mamba Max controller. It would ease the controller a bit.
There's quite a difference between your T4 and his truck, if you can see what I mean.:)

I have to seriously disagree...First off, its 5700, not 5400, and second, I don't think the truck has anything to do with how "efficient" the controller runs. Yes, a motor with segmented magnets will be a better motor, but at the least, correct gearing should help him some. It sounds as though it might be under geared since if it was over geared the controler wouldn't be hot...

3s Lipo on a heavier truck running a 5700 kv motor is a bit much. Running the 4600 motor on 3s Lipo would be better suited, but as crazyjr said, something in the mid 3000s should run quite well.

Yea. The Neu motor would be my choice, but the 4600 would be a cheap alternative...

I did not mean ineffecient-literally- but probably I did not put it the right way.
I also thought he should go down in the number of teeth for the pinion.
Again, a segmented rotor with a rpm between 2700-3000 will be perfect.:003:

Hey guys, thanks for keeping this going. I've ordered the 12 tooth pinion from the site here, and I think I have found a place that has Mod1 pinions with 1/8 shafts from 10 and 11 teeth. I really think that's the challenge. If the pinion doesn't work, then I'm going to get a Neu motor. I don't have anything against the 4600, but I don't want to be limited by it either. The Mamba Max controller will work fine if the motor is running efficiently. Plus, I think I would have to change my battery setup with the 4600 to get proper voltage. Right now I have two 11.1v 3100 mah 3c Polyquest li-po's in parallel. I'm still learning a lot though, so maybe not.

yes, indeed.

does anyone know if the MM's are segmented?

Hey Serum! Thanks for checking back in. I'm not sure if they're segmented or not. I guess we could find out from CC though. I'll see what I can find.

By the way, do you think a 10 tooth pinion is too small?

Observe the temperature of the cells, batteries and controller, they are one the best measurement devices you can get on determining the proper gearing.

Ok. Well, I'll see how the 12 tooth does and let you guys know. The batteries are never hot - they do great. But they put out a ton of power so that's the least of my concerns.

I know CC says the motor should be fine up to 200, but what would you say is a good target temp to shoot for?

200 is the maxximum (a bit higher even)

but i get concerned when the temps are getting above 170F

Great. Thanks. I'll shoot for that and see what I get. My gut tells me going from a 13t to a 12t isn't going to be enough. I think I'm going to need a 11t or quite possibly a 10t.

Sower, how about openning the Mamba Max motor and check the rotor?
If it has any segments or not?
Just curiousity.