PRE-ORDER your MAMBA MONSTER esc now... CLICK HERE!

[dawn_skd]

I've just saw Castle Creations is allowing pre ordering the new MAMBA MONSTER controller...

Click here for detalis :
http://www.castlecreations.com/products/mamba_monster.html

Great news for all those people who waited sooooo long.
:D

Dawn.

[Smib]

Continuous current capability: "More than you van handle!" and no mention of peak current, what's that all about?

[GSMnow]

At a series resistance of just 0.0003 ohms, it can take some huge current without making much heat. Even assuming that is on each phase, you will have just 6 watts of heat at 100 amps. And even at 200 amps it only goes to 24 watts. You can melt down jusr about any normal battery and motor and the ESC won't break a sweat. Let's say you are running just 4S (14.8 volts) at 200 amps. That would be 2960 watts out of the battery. That is almost 4 HP. And with that much power flowing, you only lose 24 watts to heating the ESC. The rest of the power is going to the motor. That is a loss of less than 1%. To put this into perspective, the Novak HV ESC is only rated at 0.0013 ohms. Over 4 times the resistance. At the same 200 amps, it would be making 104 watts of heat. 4.33 times as much wasted power going into heating the ESC heat sink. And Novak rates that for 410 amps. Of course they have that little note that states, transistor rating at 25C.

Long story short, you will have a very hard time hurting the Mamba Monster with just current. If you do manage to get it hot, it will shut down too, but your LiPo will probably be a puffed up ball that is ready to burst by then.

[SpEEdyBL]

Isn't the mamba max also .0003 ohms?

[ElectricThunder]

Yup! I wonder how many FETs the mamba monster have; I'm guessing it uses high voltage rated FETs (since it's rated at 6s lipo), and those FETs tend to have higher resistance. That means they must've paralleled a decent amount to get only .0003 ohms.

[GSMnow]

Yup, for double the rated voltage, the on resistance of FET's is usually 3 to 4 times as high per FET.That makes that on resistance figure just amazing for a 6S rated control. Who is going to try 8 S on it??

[SpEEdyBL]

The fets are only rated for 30 volts, so I would guess anyone who wants too see smoke. Patrick said that if it had 40v fets 8s wouldn't be a problem. 7s might be doable.

[GSMnow]

Right off of the charger, 4.2 per cell x 7 = 29.4 volts. Sure, someone will do it.

Hmmm, 8 cells...
30 / 8 = 3.75 volts, yeah, that is cutting too close. My LiPos are not down to 3.75 vpc until I have been racing well over 3 minutes.

[PatrickdelC]

Right off of the charger, 4.2 per cell x 7 = 29.4 volts. Sure, someone will do it.

Hmmm, 8 cells...
30 / 8 = 3.75 volts, yeah, that is cutting too close. My LiPos are not down to 3.75 vpc until I have been racing well over 3 minutes.

Ummm, except there is a 28.0V TVS (transient voltage suppressor) on the Monster Maxx -- so you will smoke the TVS with a 7S pack, and then smoke the whole controller the first time you do any serious braking with 7S.

6S is a hard limit. Nothing higher than 26.0V.


Patrick

[jzemaxx]

That stinks....we need a MMM-HV then......

[PatrickdelC]

That stinks....we need a MMM-HV then......

Yeah, I've been hearing that a lot lately.

8S is easy to do on the existing Monster design -- next step is 12S, much much harder and will be a larger design.

Patrick del Castillo
President
Castle Creations

[jzemaxx]

Would be nice. I'm having to run your HV-110 to break the speed barriers we are running. Problem is on my emaxx's they have no mechanical brakes and at 73-74mph they are hard to get stopped...lol. I'm running 8S on one of the emaxx's and 12S now on another truck (XTM MMT though it has mech. brakes). I want to push the emaxx up to 10-12S but its getting dangerous trying to get the truck slowed down with no brakes.

[Rotary Rocket]

Yeah, I've been hearing that a lot lately.

8S is easy to do on the existing Monster design -- next step is 12S, much much harder and will be a larger design.

Patrick del Castillo
President
Castle Creations

Patrick,

If you do put out the 8S capable version it will open up the 1/5 scale class to your product as well.

I have an on road and 4wd off road (home made) that could use such a product and run the car on 8S. I would buy 2 of these from you today.

Please make the 8S version. Thanks.

[GSMnow]

I had another odd question.

What is the lowest voltage that the Monster will run on properly? I have a friend who is making an insane car and needs a very high current brushless setup to run on just 2S. You gotta love rules. He will use a 2S 8000 pack rated at 30C for 30 seconds. Yup, 240 amps and 160 amps (20C) constant.

[porra]

Yeah, I've been hearing that a lot lately.

8S is easy to do on the existing Monster design -- next step is 12S, much much harder and will be a larger design.

Patrick del Castillo
President
Castle Creations

Patrick,

I could use an 8S, but 12S will the ticket for me. I can work with larger size and most truggies and even buggies will be able to fit them. I current use a Schulze 40.160 and that is a big controller.

Off topic: I called yo yesturday to ask you a question about the SHV. I noticed it looks very similar to the current HV controllers. Would there be any way to write a simple software (Not like the Mamba) to make it work for cars? Simple forward/brake only will do.

[jzemaxx]

Patrick,

I could use an 8S, but 12S will the ticket for me. I can work with larger size and most truggies and even buggies will be able to fit them. I current use a Schulze 40.160 and that is a big controller.

Off topic: I called yo yesturday to ask you a question about the SHV. I noticed it looks very similar to the current HV controllers. Would there be any way to write a simple software (Not like the Mamba) to make it work for cars? Simple forward/brake only will do.

The HV's with just foward/brake would be the ticket. I'll buy one today if they could do it....