MMM has appeared on Castle

[Roc]

Hi everyone, the MMM finally has a page on castle! http://www.castlecreations.com/products/mamba_monster.html also, is that an e-revo in the background?

[Sir Slide Alot]

No a E-Revo no, it has outboards shocks.

Nice of them to work with plugs on the ESC.

[OM514]

anyone know when they are going to release the combo package?

[killermmn]

sometime in the summer if lucky

[Sneaky Pete]

Killermmn...why do you say "sometime in the summer if lucky?" Their website says that they will release a motor combo a few weeks after they start shipping the MMM. While that would probably be the summer, technically, at least it sounds a bit more definitive than "sometime in the summer if lucky."

Anyways, the reason I am interested is that I would prefer to get a combo package...1) I assume it might be a bit cheaper and 2) I would think that it might be more "optimized" for the ESC.

However, I am also wondering what people think would be a good motor to go with the MMM. I have the desire to have a high top end speed for "drag racing" but more importantly to have good performance while bashing in the dirt. There's something about the sound of "50 MPH monster truck" that gets me going, but I don't want to sacrifice performance (i.e. heat, no bottom end, run time) just so I can have a fast street machine. I was thinking that a lot of this could be adjusted with gearing regardless of the motor, but perhaps I'm wrong.

So, what motors would you guys suggest with the MMM? I don't want budget-priced, but I also don't want the uber-expensive motors either. All of your comments are appreciated!

[TexasSP]

I would say this motor (http://www.rc-monster.com/proddetail.php?prod=NEU_1515_2.5dF&cat=20) on 6s is what you would want for your desired performance. Maybe even a 1515 1y on 5s, but I don't know for sure. Just go Play runs that setup so I would talk to him as well.

[Roc]

I know that a MMM with one of the package motors (i don't know which) was tested on an E-Maxx with a 6S li-po, and it went 60mph- that means an e-revo will probably go about 65-70 as maxxes are unstable at high speeds. Don't trust what Traxxas say on the e-revo section; they have it's RRP as $800! Tower has it for 450.

[mkrusedc]

However, I am also wondering what people think would be a good motor to go with the MMM. I have the desire to have a high top end speed for "drag racing" but more importantly to have good performance while bashing in the dirt. There's something about the sound of "50 MPH monster truck" that gets me going, but I don't want to sacrifice performance (i.e. heat, no bottom end, run time) just so I can have a fast street machine. I was thinking that a lot of this could be adjusted with gearing regardless of the motor, but perhaps I'm wrong.

So, what motors would you guys suggest with the MMM? I don't want budget-priced, but I also don't want the uber-expensive motors either. All of your comments are appreciated!

I'd use a Neu motor. It sounds like a lower KV/PPM with higher voltages would work for you.

1515/1D 4100
1515/1.5D 2700
1515/1Y 2200
1515/2.5D 1700
1515/1.5Y 1500
1515/3D 1360
1515/2Y 1100

[Sneaky Pete]

I'd use a Neu motor. It sounds like a lower KV/PPM with higher voltages would work for you.

1515/1D 4100
1515/1.5D 2700
1515/1Y 2200
1515/2.5D 1700
1515/1.5Y 1500
1515/3D 1360
1515/2Y 1100

Thanks for the quick replies, guys! So, with the above motors, what would be the difference, performance-wise, between these? I know that the lower the KV the lower the RPM/volt which would reflect a difference in speed. So, how do I choose between these?? :confused:

[Edumakated]

Thanks for the quick replies, guys! So, with the above motors, what would be the difference, performance-wise, between these? I know that the lower the KV the lower the RPM/volt which would reflect a difference in speed. So, how do I choose between these?? :confused:

You have to match KV to the battery voltage you plan to use relative to the speed you want out of the truck. The higher the KV the faster the motor at lower voltage. However, it also generates more heat and strain on the ESC and motor. On the other hand, a higher voltage and lower KV motor runs more efficiently and cooler since it doesn't generate as many amps.

The 4s Motor is the 1515 1.5d. The 1515 1y is fast on 5s. The others are more for 6s.

[69Malibu]

i think we need to stop calling it the MMM. since t appears the name is just mamba monster.

[Sneaky Pete]

The 4s Motor is the 1515 1.5d. The 1515 1y is fast on 5s. The others are more for 6s.

Thanks Edumakated...I am curious how you come up with the fact the 1515 1.5d is a 4s while the 1y is a 5s. I actually thought I read that the 1y was being run with a 6s. Also, is there any harm in running different voltages with the various motors?

[TexasSP]

You can run the 1y on 6s, but it generates a lot of heat and is less efficient. It will also pull more amps and thus create much more strain on your controller.

[Edumakated]

Thanks Edumakated...I am curious how you come up with the fact the 1515 1.5d is a 4s while the 1y is a 5s. I actually thought I read that the 1y was being run with a 6s. Also, is there any harm in running different voltages with the various motors?

Neu motors are spec'd up to 60,000 rpms.

KV is simply RPMs per Volt. The 1515 1.5d is a 2700kv motor. 2700*14.8 (4s voltage) equals 39,960 RPMs. This would be pretty fast depending on your gearing. Keep in mind that a nitro motor is usually running between 30-35k rpms, so on 4s you would beat most nitros pretty easily. You could run it on 5s to have tire shredding speed at 49,950 rpms (2700*18.5) and embarrass any nitro at half throttle. The truck would be retardedly fast and probably uncontrollable with that motor on 5s. On 6s you would be at 59,940 RPMs. You could do it, but you would be pushing the boundaries of insanity.

Use this calculator to figure out what motor and voltage to use based on the speed you want to http://www.scriptasylum.com/rc_speed/_top_speed.html

The 1y motor is 2200kv so it isn't as high strung as the 1.5d at 2700kv, so you could run it at 6s pretty easily. Put another way, the 1y on 6s is at 48k rpm which is the same speed as the 1.5d on 5s. The 1.5d is quite a bit faster.

[CaptBags]

Keep in mind that those RPM's are "unloaded". In a 12 pound or so E-maxx you'd be in no danger of maxing out the RPM's w/ the stated cell counts.