Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor (1650Kv)

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NOTE: A Mamba Monster X 8S service advisory has been released - please read this statement from Castle Creations. Castle has put a temporary hold on using D-Wind type and motors with Kv higher than 2,000Kv. A software update to correct this is coming in the next few weeks.  

The Castle Creations Mamba Monster X 8S ESC/Motor Combo with 1520-1650Kv Sensored Motor is a great way to add some of Castle's secret sauce to your build. This motor and ESC combo is designed for 1/6, 1/7 and 1/8 scale vehicles running up to 8S batteries and weighing up to 18 lbs. If you have been looking for the ultimate combo to propel your rig without sacrificing power, punch, or speed - this is an ideal option. The 1520-1650Kv has all of the same features as its big brother 1717-1650Kv has, but in a more compact diameter. This allows use in a wider variety of models, without modifications to your chassis.  

The MAMBA MONSTER X 8S utilizes Castle’s breakthrough technology, CRYO-DRIVE. By reducing the rate at which the ESC heats up and removing heat more efficiently, your setup will be able to handle higher gear ratios, in heavier vehicles, with longer runs.  These software advancements work in parallel with a unique open housing design to allow increased directional airflow to cool critical components. With the integration of a 40mm cooling fan and a forged elliptical fin heatsink, the design maximizes airflow throughout the system, taking thermal performance to a whole new level.

The ESC was designed with a robust aluminum casing, and the epoxy potting guarantees protection around the circuitry and ensures all-weather use. Mamba Monster X 8S is a beast, ready to take on the harshest of environments and still perform. You can easily optimize the ESC for any driving condition, from rugged terrain to smooth pavement to the perils of rock and gravel. Create, save and download setup profiles through the Castle Link Programming Suite on your Windows PC, or wirelessly with the convenience of the B-Link Bluetooth Adapter and Castle Link app for Android or iOS.

When paired with the Castle sensored 1520-1650KV motor, users will experience controllable low-end control without sacrificing power, punch or speed. SmartSense mode uses the motor’s sensors to start the rotation, delivering smooth starts, excellent torque, and low-speed drivability. Once the motor is spinning, it seamlessly transitions to Castle’s ultra-efficient sensorless mode. You’ll put more power to the ground, where it should be, instead of wasting it through raw heat and RPMs.


  • ESC:
    • Input Voltage Range 2S-8S LiPo
    • Sensorless, Sensored and SmartSense™ Running Modes
    • Powerful Integrated 8A Peak Adjustable BEC (5.25V-8.0V)
    • CRYO-DRIVE™ Technology minimizes the amount of time the ESC’s electrical components spend generating heat, resulting in improved thermal performance during partial throttle operation where the majority of driving occurs
    • ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to  protect the electronics and promote efficient heat transfer
    • Premium forged heatsink with elliptical fins for superior air flow and increased heat dissipation
    • Oversized factory equipped thermally controlled 40MM cooling fan
    • Compatible with S.BUS2 Telemetry Link and Futaba T4PX and T7PX transmitters
    • Waterproof design for all weather conditions
    • Data logging capability to capture and record performance data from your vehicle
    • Auxiliary wire functionality for "on-the-fly" adjustments using your transmitter
    • Audible alerts for easy diagnosis of common issues such as motor-over-temperature and low-voltage cutoff
    • Convenient transmitter programming for six common adjustable settings including cutoff voltage and drag brake
    • Easily tune and update ESC with USB and Bluetooth™ programming options
    • Castle Link USB programming kit (coupon included with purchase)
    • Optional smartphone-based programming with the B-LINK™ Bluetooth Adapter (sold separately) and Castle Link app available on Google Play or Apple App Store
    • Proudly designed and manufactured in Olathe, KS USA and backed by Castle Creations' 1-year warranty
  • Motor:
    • High-strength, high-temperature grade neodymium sintered magnets combined with High-strength Kevlar wrap ensures the integrity of the rotor is not compromised during harsh running conditions.
    • Oversized NMB bearings and vibration dampening system ensure the longest bearing life possible.
    • Proprietary winding techniques allow Castle to produce a stator assembly that is the lowest possible resistance, resulting in a cooler running motor.
    • Updated modern and sleek design; looks as cool as it performs.
    • IMPROVED 4-POLE 12-SLOT design boasts exceptional EFFICIENCY and produces LESS HEAT.
    • QUIETSENSE™ technology shields the sensors from magnetic field noise generated from the motor coils and keeps your motor and ESC in sync at all times. Use of a Flux Shield™ in conjunction with secondary Sense Magnets delivers even HIGHER PRECISION and MORE EFFICIENT startups.
    • OPTIMIZED design eliminates the need for mechanical timing adjustments. This sensor alignment method delivers uniform timing and torque in both directions, automatically.
    • Updated modern and sleek design; looks as cool as it performs.
  • ESC:
    • Input Voltage Range: MIN: 2S LiPo , MAX: 8S LiPo 33.6V
    • BEC Specifications: Adjustable: 5.5V, 6.0V, 7.5V. or 8.0V (8A Peak), default 5.5V
    • Operating Environment: Waterproofdesign allows for use in nearly any environment.
    • Brake: Proportional
    • Reversible: Yes, but may be disabled for racing.
    • On/Off Switch: Yes, waterproof
    • Cooling Fan: Yes, factory equipped (40MM), fully removable** (See Product Use Statements below)
    • Size: L x W x H 69.5mm x 54.1mm x 47mm
    • Weight (with no battery connector): 5.75 oz. (163 grams)
    • Connectors: 6.5mm female bullets for motor connection
  • Motor:
    • Input Voltage Range: 3s-8s LiPo 
    • Kv: 1650
    • Max. RPM: 60,000
    • Size: Length: 3.50” (88.8mm); Diameter: 1.64” (41.6mm)
    • Weight (w/wires): 17.92 oz. (508g)
    • Shaft Diameter: 5mm
    • Mounting Hole Specifications: M3 and M4@25.4mm (1.0") Diameter
    • Cooling Fan: Not available
    • Connectors: 6.5mm male connectors

Programmability: Fully programmable Castle feature set using Castle Link USB adapter (coupon for free Link included) and freely downloadable Castle Link Windows™ software, or the Castle Link iOS® or Android® app with B-LINK™ Bluetooth™ Adapter (sold separately).

Telemetry Link Capable: Yes, with Castle Creations Telemetry Link for S.BUS2 and Futaba T4PX and T7PX transmitters.

Product Use Statements:

  • Recommended battery capacity for 1:6th scale vehicles is 5000mah. Castle recommends using 50C continuous discharge or higher LiPo batteries.
  • Surge ratings should never be used to determine a pack’s suitability for a brushless application.
  • Castle recommends a high current connector designed for high-powered electric systems, rated for 100+ amps, such as Castle CC Bullet 6.5mm, CC Bullet 8.0mm, or 6.5mm Polarized Castle Connectors.
  • Applying voltages higher than 33.6V will cause irreparable damage to ESC.
  • Although Mamba Monster X 8S is waterproof, it is NOT intended for operation while completely submerged in liquid. Always rinse the ESC with clean water after exposure to corrosives or dirt.
  • The cooling fan must be removed prior to driving in wet conditions. *Fan is not waterproof.
  • Monitor motor temperatures closely; overheating a motor will cause permanent damage to the magnets. Never exceed 180° F on the motor or ESC.
  • The 1520-1650Kv is a water resistant design. The sensor board is coated with silicone conformal coating to protect the sensors from moisture. The sensor connections are not water resistant; water can cause signal loss which could result in loss of sensored capabilities. Castle recommends applying dielectric grease to the outside of the sensor wire connections after installation of the wire. Routine maintenance is recommended after running in wet conditions. Please refer to the Running & Maintaining document in the resources tab above for info on running and maintaining motors in wet environments.
  • Application Guidelines: Mamba Monster X 8S and 1520-1650kV motor is intended for use in 1/6, 1/7 and 1/8 scale vehicles weighing up to 18 lbs. and running up to 8s LiPo. Examples include Losi LST2-E™; Arrma™: Limitless™, Typhon™ 6s, Kraton 6s™, Kraton EXB™, Infraction™ Felony™ 6s, Notorious 6s™, Talion™ 6s; Kyosho Inferno™, Traxxas: E-Maxx™, E-Revo™, UDR™, Summit™; Redcat Shredder™
  • Mamba Monster X 8S ESC
  • 4-POLE Sensored 1520-1650KV Motor
  • Castle Sensor Harness Adapter (installed)
  • 200mm Sensor Wire
  • Mamba Decals
  • Coupon for free Castle Link USB
  • ESC Quick Start Guide
  • Motor Quick Start Guide

This product was added to our catalog on November 27, 2020

Joshua Johnson
Verified Owner
Monday, Jun 28 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Amazingly smooth and powerful setup, i myself just started using Castle setups and I won't try anything else. ?
Sammy Mckeag
Verified Owner
Friday, Jun 18 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Fast service over the moon with my combo totally love it my infraction is amazing fast couldn't be happier thanks guys
Lachlan Mazzer
Verified Owner
Friday, Mar 5 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Just installed in my kraton 6s and is amazing so much power
Verified Owner
Friday, Feb 12 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Very clever combo, perfect for 1/8 and 1/7 power hungry cars with small spaces without having to modified the motor mount. Powerful, sensored, smooth. Excellent combo.
Dennis L Springsteen
Verified Owner
Friday, Aug 25 2023 (3 months ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
For 1/8 scale racing , this is the combo you want , best you can get ,,,
Works with 2 cell up to 8 cell ,,,
Very powerful ,,,
Fit in my Sledge with slight modification to the motor mount , motor is 42mm x 88mm ,,,
Lee Tilton III
Verified Owner
Friday, Jun 4 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
I just received this ESC/Motor combo this week. It’s going to be installed in my Arrma Infraction V2. I still need to solder a couple of IC5 connectors up to the ESC wiring harness. Cannot wait to get it installed and run it on 8s.
Jesse Williamson
Verified Owner
Tuesday, Dec 20 2022 (12 months ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
great combo the 1520 motor is great for my hyper mt plus 2. standing backflips. and nice smooth censored system.
Louis Milinazzo
Verified Owner
Sunday, Nov 20 2022 (about a year ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
The stock Infraction is so fast it's hard to believe how much more powerful this combo is. The motor just fits lengthwise in the Infraction. With the stock motor mount a 40t spur and a 29t pinion fits. That's good for 112mph. Gearing up with a new mount there is a ton more speed available.
Joshua Esposito
Verified Owner
Wednesday, Aug 18 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
The esc arrived damaged and I was forced to go through castle for a warranty exchange.
Kelly Hunka
Verified Owner
Saturday, May 1 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Bought this setup for my brand new Mojave EXB roller. Bought Castle USB link to setup and update the ESC, worked great! After setup, I calibrated ESC to transmitter and backed the motor away from drive train, then installed two freshly charged Spektrum 4s/5000mah/100c batteries......that were also new and charged on smart charger. The system powered up, I turned the wheels back and forth, then slowly ramped Accelerator for test and the ESC burst into FLAMES!!!!
Will be contacting Castle on Monday. This is the first Castle experience I have had and it cost me a new battery,new ESC,possibly a new motor and almost my son's new Mojave. Beware
Mike Valenti
Verified Owner
Friday, Apr 2 2021 (about 2 years ago)
Castle Creations Mamba Monster X 8S ESC/Motor Combo w/1520 Sensored Motor
Got my order from amain hobbies. The box was crushed. The fan on the esc was cracked in two. Also the esc fins were all bent over. Not buying from amain again. In the process of fixing the issues.