EcoPower 35A Brushless ESC & Motor Combo for ARRMA® Grom (4600kV) w/IC2 Connector
About this part
High-Performance Brushless Bundle with Advanced Features
The EcoPower 35A Brushless ESC and Motor Combo is a performance-focused upgrade built for durability and control in small-scale RC vehicles such as the ARRMA® Grom series. Designed for 1/14, 1/16, and 1/18 scale platforms, this combo delivers smooth acceleration, consistent throttle response, and reliable power output. Waterproof and dustproof, it's made to handle all-weather conditions while protecting your electronics with multiple built-in safety features. Whether you're upgrading for speed, control, or durability, this combo delivers balanced power and flexibility.
About the Brushless ESC & Motor Combo
Precision-Tuned ESC
The 35A Electronic Speed Control (ESC) is built to handle demanding conditions with its weather-resistant construction. This ESC delivers dependable performance with built-in safety features such as low voltage cut-off, overheat protection, and motor overload protection. The ESC is compatible with 2S and 3S LiPo batteries or four-nine cell NiMH packs, while the IC2 connector ensures compatibility and smooth power delivery across a wide range of setups.
High-Efficiency Brushless Motor
The included 4600kV brushless motor features a 4-pole, 12-slot high-torque design that ensures smooth, powerful operation. Built with a CNC-machined aluminum heatsink can, a precision-balanced rotor, and high-purity copper windings, this motor is engineered for maximum energy conversion and efficiency. Additionally, oversized ABEC5 bearings and a 50,000 maximum RPM rating support high-speed performance with reduced wear and increased reliability.
Expanded Tuning Options
For advanced users looking to fine-tune performance, this combo is compatible with the optional EcoPower ESC Program Card (ECP-8021 - sold separately). This program card allows customization of essential settings like low-voltage cut-off, brake and reverse force, and throttle response range, making it a valuable tool for dialing in your setup to match track conditions, battery preferences, or driving style.
Features:
- Provides 35A continuous current and 120A burst for powerful acceleration
- Waterproof and dustproof housing ensures reliable performance in any weather
- Compatible with 2S and 3S LiPo or 4-9 cell NiMH batteries for flexible power options
- High-efficiency 4600kV motor delivers strong torque and top-end speed
- CNC-machined aluminum motor can for improved heat dissipation and durability
- Built-in protections guard against overheating, signal loss, and overload
- Precision-balanced rotor ensures smooth, stable motor operation
- IC2 connector supports secure and efficient power transfer
- 5.0V BEC output provides steady power
- Compatible with optional EcoPower ESC Program Card (ECP-8021) for custom tuning
Includes:
- (1) 35A Brushless ESC w/IC2 Connector
- (1) 4-Pole Brushless Sensorless Motor (4600kV)
- Instruction Manual
Needed to Complete:
- (1) Compatible Spektrum™ DSMR® Receiver
- (1) ESC/Servo Mount
Specifications:
ESC
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Motor
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*Tech Note: Please uninstall any cooling fans before using the ESC in wet conditions. Clean and dry the ESC and connections soon after use to avoid rust.
**Tech Note: This combo is designed to upgrade your vehicle from the stock 2-in-1 ESC/receiver system. A separately sold ESC/servo mount and receiver will be needed to complete the bundle.
Manuals:
ESC User Manual
Motor User Manual
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews4.3 · 7 reviews
High quality, very well constructed. Ez to install. pretty much plug and play. instantly notice a big difference in speed. At least 50% more power.
Motor shaft sheared off after 10 runs… It was very powerful for the money until then but pretty disappointing really.
For the money this thing makes the Losi Nascar platform rip without spending a ton of money. I paired mine with a 21T pinion in hopes to not over gear it and it runs fine. The motor gets a bit warm but that is expected. I'm very impressed with this package and it is simple to plug and play.
I absolutely love this ESC Motor Combo. has very consistent speeds as well as dependability. only downside is I wish there were more programing options. but yes, out of all the combos for the Nascar this has been my favorite so far.
Installed in a losi nascar. I believe it’s too small. Definitely requires a heat sink on the motor. I used 2 green maverick RC heat sinks for a 370 motor in green. Now the motor stays in a good temperature range an then geared it with a 22 pinion. Speeds are good on 2s. I would recommend going with a Hobbywing combo instead, or spending $20 extra an get the Hobbywing combo with the 2850 motor.
Seven reviewers, all verified owners of the 4600kV variant, mostly report strong power for the price, with several using it in Losi NASCAR 1/12 builds and describing it as easy to install and plug-and-play. Reviewers praise speed, consistency and build quality, and one notes a large speed increase over their previous setup. Recurring concerns are motor heat, with one reviewer adding heat sinks and another suggesting the motor is too small, and limited programming options. One reviewer reported a motor shaft shearing after about ten runs, and another recommended a competing combo instead. A cooling fan option was requested.
- + Strong power for the price
- + Easy plug-and-play installation
- + Consistent speeds and dependability
- + Good build quality
- − Motor runs warm, may need heat sinks
- − Limited programming options
- − Motor shaft sheared after ten runs
- − Some reviewers consider the motor too small