http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXVHA5&P=ML
Here is a nice one
not available yet though

The Monster is finally here! Long rumored, occasionally seen at trade shows, Castle’s elusive 1/8th scale Monster Brushless ESC is finally available to the public. Castle has used all of their tricks to deliver stunning power for monster trucks and 1/8th buggy conversions.
The Monster handles up to 6S LiPo input (25.2 Volts MAX). It has a switching BEC circuit onboard to provide plenty of power for your receiver and servos. Don’t worry about the amp rating, nothing even comes close to the real world performance of the Castle controllers, and Monster is no exception. We’ve hit 60 mph with RC vehicles that have absolutely no business doing 60 mph. (And we were doing it in a 20 mph zone!)
Monster is designed to keep its cool while it pounds your truck. Castle refused to cut corners on the design or the components, the electronic and thermodynamic fundamentals are right to begin with. Castle then wrings a bit more power out by using a high efficiency heat sink PLUS an integrated cooling fan to make sure you finish the race. Thermals are for the other guys.
Mamba Monster ESCs come with huge 6.5mm gold plated bullet connectors for reliable power transfer and simple installation. We’ve even thrown in a
Castle Link USB adapter so you can tame the Monster by adjusting the really useful settings using your Windows PC.
OK, so you’re asking, “What motor do I run it with, where’s the Castle motor for this thing?â€
They are on the way, honest! The long wait is nearly over. You don’t want to know how many prototype motors we’ve tortured in the testing of this Monster. The work has all paid off with these incredible motors. Based on Steve Neu’s awesome 15 series motor, the Neu-Castle 2200 and 2650 are works of mechanical art. They both feature high quality bearings and Neodymium magnets, superior electromagnetic design, and rigorous engineering control in our own factory result in a Monster motor we can put our name on.
We're offering two choices:
Neu-Castle 2650 KV – Intended for 4S (16.8 Volt) operation. Ideal for 1/8th conversions. The 2650 is 67mm long.
Neu-Castle 2200 KV – Intended for 6S (25.2 Volt) operation. Incredible in monster trucks with up to 6S LiPo packs. The 2200 is 75mm long. This is the bad boy!
Both motors come with a Neo rotor on a 5mm shaft as standard, not as an optional upgrade. Castle uses high end bearings for trouble free operation, and we’ve machined integrated cooling fins for that extra bit of power. These motors are 4 pole, slotted, brushless motors wound with 1 turn in a Y configuration.
When?
ORDER NOW! Mamba Monster/2200kv combos should be delivered in early December. Mamba Monster/2650 combos should be delivered in mid December.
Hey, a motor is a motor, right? What’s all the fuss? Who cares about a few points of efficiency?
Not all motors are created equal, efficiency matters a lot. Here’s a little math, we promise it won’t hurt. Say you are laying down 1,000 watts, (about 1 ¼ horsepower), and your motor is 70% efficient. That means you are turning 300 watts into heat. Ever grab a 300 watt light bulb?
Monster’s applications typically pull 4,000-5,000 watts (5 to 6 horsepower) under acceleration. The Neu Castle motors are some of the highest efficiency motors that we’ve ever tested; they are up to 85% efficient on our rig. The more common Asian motors tend to show in the mid to high 70’s. At those power levels, one single point equals about 50 watts of heat! You know that soldering iron on your workbench? It’s maxed out at 50 watts. That’s a lot of heat; now consider wasting several times that much heat inside your truck. Monster motors can therefore put out more power for longer periods than less efficient motors. Go ahead, run the motor you have on the shelf, we have a feeling you’ll find its limits pretty quickly.
It’s always better to simply reduce the heat generated in a system by better engineering than to try and cool things with fans and other gimmicks. Sure a fan can get you a few degrees, but you had better have a superior design to start with.
ProductMax Input VoltsAmp Rating*WeightRetail Price
Mamba Monster with Neu-Castle 2200kv Motor
25.2
120
121g
$349.00
Mamba Monster with Neu-Castle 2650kv Motor
25.2
120
121g
$349.00
*Full throttle continuous operation with cooling airflowConversion Kits? Did you say conversion kits?
Yes, Castle will have conversion kits for the Kyosho 777, the Losi 8ight, and the Jammin buggies at a retail price of only $99.99. The conversion kits will include aluminum motor mounting plates, a servo mount and trick plastic battery bays capable of holding up to 4S LiPo setups. Wait ‘til you see the retaining snakes. Yeah, snakes.
These kits should be available in early 2009.
Don’t forget the pinion!
Gotta have a way to get the power from the motor to the drivetrain. Sounds like the world’s supply of 5mm pinions evaporated once the Monster came out. We’ve got the following 5mm shaft pinions covered:
CC PINION - MOD-1: manufactured from titanium coated hardened steel. Most common use will be for the 1/8th scale conversions. Available in 11T, 13T, 15T, 17T, 19T, 21T, and 23T.
CC PINION - 32P: machined from aluminum and anodized Castle green. Most common uses will be for monster trucks. Available in 18T, 20T, 22T, 24T, 26T, and 28T.
We’ve made sure that these use the biggest Allen head set screw we could fit.
Pinions should be available in early 2009.
Power your Monster!
Probably going to need some batteries too. We don't sell batteries but we have some good buddies that do. Brian over at
Tanic Packs can put together the perfect
A123 pack for your EMAXX.
6S 2P A123 is what we use in our Monster EMAXX. Tons of power, incredible durability, quick recharge (only15 minutes!), and the safety of the
A123 technology. Tanic Packs is also offering a great deal on a
4S A123 pack. Your monster truck should be a non-smoking zone, right?
Tanic Packs 6S 2P A123
Retail Price:Mamba Monster ESC: $199.00
Mamba Monster/2200kv combo: $349.00
Mamba Monster/2650kv combo: $349.00
Cells:18 NiCad/NiMH
6s LiPoContinuous:More than you can handle!Resistance:0.0003 ohms per phaseBrake
😛roportional with adjustable curveReversible:Yes - with lockoutLow Voltage Cutoff
😛rogrammableSize:ESC: 2.2" x 1.9" x 1.4"
Weight w/wires:ESC: 121gConnector Type:6.5mm bullet
DELIVERY
Mamba Monster/2200kv Combos should be delivered in early December. Mamba Monster/2650 Combos should be delivered in mid December.
Choose a Package Mamba Monster ESC Mamba Monster/2200kv Combo Mamba Monster/2650kv Combo