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Hobbywing SCT XR8 Pro G3 ESC Combo With 3660Sd 4200Kv Motor

Hobbywing SCT XR8 Pro G3 ESC Combo With 3660Sd 4200Kv Motor

Brand: Hobbywing

Part No: HW38020440

$293.75 RRP $326.39

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The Hobbywing SCT XR8 Pro G3 ESC Combo with 3660SD 4200KV motor (part HW38020440) pairs a competition-grade 200A XeRun XR8 Pro G3 speed controller with the latest 36mm G3 sensored motor for smooth, efficient power delivery. Designed for high-end racing, this combo delivers precise throttle feel, advanced timing control and robust thermal management for demanding 1/8 applications and 1/10 short course use.

Key Features

  • Pure sensored operation: built-in intelligent sensor circuit for consistent, smooth throttle when paired with XeRun XR8 series ESCs.
  • Advanced Boost & Turbo timing: up to 48° when used with recommended Hobbywing motors; manufacturer notes significant top-speed gains versus previous G2 series.
  • Bi-directional mechanical timing (20–40°) for fine power tuning (CW/CCW).
  • Dual brake modes including closed-loop “disc brake” control for linear, adjustable braking feel.
  • High efficiency hardware with smart freewheeling and intelligent frameless fan for reduced temps and noise.
  • Reverse polarity protection, IP5X dust protection and capacitor thermal protection for durability.

ESC Highlights: XeRun XR8 Pro G3

  • Continuous/peak current: 200A / 1080A
  • Input: 2–4S LiPo
  • BEC: 6V/7.4V selectable, 6A (switch-mode)
  • Programming: Independent port; supports LCD G2 Program Box and OTA Programmer; firmware upgradeable
  • Brake: Traditional mode plus closed-loop torque (disc) mode with curve and force distribution adjustment
  • Thermals: Smart freewheeling; approx. 15°C lower max temp vs XR8 Pro G2 (manufacturer data)
  • Protection: Reverse polarity protection; capacitor thermal protection; IP5X dustproof with protective fan cover
  • Wiring: Ultra-soft 11AWG silicone wire; no input/output connectors pre-fitted
  • Motor limits: 3S LiPo—KV ≤ 4200 (3660 size); 4S LiPo—KV ≤ 3000 (4268 size)
  • Size/weight: 54.8 × 36.8 × 38.8mm; 102.8g; non‑waterproof

Motor Highlights: XeRun 3660SD 4200KV (G3)

  • 4‑pole sensored brushless, low cogging torque for smooth low‑speed control
  • LiPo: 2–3S; KV: 4200KV
  • High reliability with stable Hall sensor system; dual Hall ports with dust plugs
  • Mechanical timing adjustable 20–40° (bi‑directional)
  • Performance: manufacturer notes very high RPM capability and improved output vs G2 generation
  • Size/weight: Ø36.6 × 60.1mm; 5mm shaft; 230g
  • Recommended ESC: XeRun XR8 Pro G3

Suggested Compatibility

  • 1/8 off‑road and on‑road racing platforms
  • 1/10 short course truck (2WD), off‑road and rally
  • Monster truck setups within stated motor/ESC limits

Engineered by Hobbywing to excel in competitive environments, this combo blends strong punch with excellent low‑speed linearity and comprehensive protection. Ideal if you need precise tuning via LCD G2 or OTA, robust braking control, and clean, pure sensored power delivery in a compact package.

1/8th Brushless Power System With The Implementation Of A Pure Signal Sensor Mode Circuit.

Built-in intelligent integrated circuit is used so the sensor unit can easily be identified by the ESC when pairing with Hobbywing's XeRun XR8 series of ESC's the motor will operate in “Pure Sensored” mode at all times, providing a better performance and a smoother throttle response.

1/8th Power System & Turbo Timing technology.

can be used when this motor is paired with Hobbywing's XERUN XR8 series of ESC's the Motor can use the Turbo Timing technology which was designed for the XR10 Pro series of Esc's used in 1/10th On and Off road Competition. The motor will increase to maximum power output instantly. The maximum speed will increased by as much as 50% more than the output of the previous G2 series motors keeping you way ahead of the competition.

Please Note: When the G3 Series motors are paired with XR8 Pro G2 ESC the turbo feature can be set to the maximum of 48º.

The Mechanical Turbo Timing Of Motor Can Be Accurately Adjusted In Both Directions (CW / CCW).

The mechanical turbo timing can be adjusted between 20-40°. It is convenient for driver to calibrate accurately output power of motor and meet power requirements of various application.

Compact And Capable!

The new XR8 Pro G3 ESC is 1.3mm shorter, and 5.3mm narrower compared to its predecessor. The overall footprint is reduced by approximately 15%. The all-new fully sensored XR8 PRO G3 ESC meets the needs of high-end 8th scale racing applications with its strong explosive power, ultra large output power(200a), while having excellent low-speed linearity.

A Maximum Output Current Of As High As 200A.

Dual Brake Mode.

The innovative closed-loop torque brake control mode is also known as the disc brake mode. It completely solves the problem of non-linear force caused by the influence of vehicle speed on traditional braking methods.

It enables linear output of braking force accurately, similar to the effect of real car disc brakes. The disc brake mode supports the adjustment of the curvature of the braking force and force distribution of the front and rear sections of the brakes. At the same time, the traditional braking mode is retained to take into account the driver's control habits.

Excellent hardware design combined with innovative smart freewheeling technology enables the ESC to have higher drive efficiency and lower operating temperature. Compared with the XR8 Pro G2, the maximum temperature is reduced by approximately 15°C, and the ESC is stable and reliable.

Under heavy load conditions, the temperature of XR8 Pro G3 is lower than the XR8 Pro G2.

Compared with the XR8 Pro G2, the maximum temperature is reduced by approximately 15degC.

Frameless Fan, Efficient And Durable.

The frameless fan blade is designed with the use of specially formulated material to reduce the defective rate of the fan caused by impact from small stones, sand and other foreign objects.

Intelligent fan start/stop, noise reduction and power saving The fan of the ESC does not work when the temperature is low. The fan will automatically turn on when the temperature rises to the pre-set value. The intelligent start and stop function of the fan not only reduces noise, saves power, but also ensures that the ESC works in a good temperature range.

Advanced Boost & Turbo Timing Technology.

The XR8 Pro G3 ESC performs the best when it is paired with the recommended HOBBYWING motor. It inherits the same Turbo Timing technology used on the XR10 Pro series used in 1/10th On-Road and Off-Road competition. This ESC is able to support up to 48 degrees of Boost and Turbo Timing. There is a 50% increase in performance and is only recommended to pair with the new HOBBYWING 4268/4274 G3 motors.

Built-In Reverse Polarity Protection Circuit, Reinforced Protection.

The ESC is reverse polarity protected. In an event when a user makes a mistake by reversing the polarity, the ESC will not be broken.

Real-Time Data Recording Function.

Easy to obtain power running status. After connecting the OTA module box, turn on real-time data recording function to access the operating status.

Capacitor Thermal Protection.

Capacitor thermal protection is designed and implemented into the ESC and will effectively prevent capacitors from exploding and causing irreversible damage to the ESC due to overload.

Note: If the overheating protection of the ESC is off, and it is used on a flat road vehicle, please add a capacitor pack, otherwise the capacitor may be overheated and damaged!

Superior Dustproof Protection The ESC Is IP5X Rated.

It has a superior dustproof protection to protect the ESC in all types of environments. In addition, the ESC is equipped with a small protective cover for better fan protection.

Custom ultra-Soft 11AWG Silicone Wire.

The ultra-soft 11AWG silicone wire is specially chosen for this product. The wire is ultra-flexible and low in resistance, making it the perfect combination to for your electronics.

Specifications
  • Scale: 1/8 Off-road, On-road Racing & 1/10 SC truck, Monster truck
  • Brushed/Brushless: BL
  • Sensored/Sensorless: SD
  • Waterproof: No
  • Cont./Peak Current: 200A/1080A
  • Input: 2-4S LiPo
  • Motor Limit:3S Lipo: KV≤ 4200 3660 Size motor
  • Motor Limit:4S Lipo: KV≤ 3000 4268 Size motor
  • BEC Output: Switch Mode:6V/7.4V Adjustable, Continuous Current: 6A(Switch-mode)
  • Input Wires: Black-11AWG-200MM*2
  • Output Wires: Black-11AWG-200MM*3
  • Input Connectors: No
  • Output Connectors: No
  • Programming via SET Button on ESC: Not Supported
  • Programming via LED Program Box: Not Supported
  • Programming via LCD G2 Program Box: Supported
  • Programming via OTA Programmer: Supported
  • Programming Port: Independent programming port
  • Firmware Upgrade: Supported
  • Size: 54.8 X 36.8 X 38.8mm
  • Weight: 102.8g
  • Supported Motors: 4268 3660 size motor
  • Vehicles: 1/8th Off-road, On-road Racing & 1/10th Short course truck, Monster truck
Motor Information

Taking 3652-4500KV As An Example, The Maximum Power Increase Is About 5%.

Compared with the older XeRun 3652/3660 G2 motors, the motor output power is improved across the entire application load range.

Turn On Turbo To Significantly Increase The Speed.

Compared with the XeRun 3652/3660 G2 motor, the maximum speed of the ESC is increased by 50%-100% when the 24° Turbo timing is turned on.

Safe And Reliable Motor Hall Sensor System.

The motor adopts the patented "error-free" Hall sensor system technology. The independent high-speed and high-precision encoder can always output pure rotor position signals, effectively avoiding sensor signal interference, so that the motor can continue to work stably in the sensed state.

High Reliability.

Compared with the XeRun 3660 G2 motor, the XeRun 3660 G3 can reach an ultra-high speed of 75,000RPM (high temperature 140°C ), and its explosion-proof capability is improved by more than 15% , making it easy to cope with high-speed competition applications.

Excellent Dust Resistance.

The motor protection level is excellent for dust resistance, and can easily cope with various off-road dusty track environments.

Dual Hall Sensor Port Design For Easy Wiring.

The dual Hall output socket design at the rear of the motor meets various wiring requirements . Customized dust plugs are also provided to prevent sand from entering the sockets that are not in use temporarily.

Bi-Directional Mechanical Timing Angle Precise Adjustment.

  • The motor mechanical timing angle can be adjusted in 20-40° bi-directional (CW/CCW)
  • It is convenient for drivers to adjust the motor output power more accurately
  • Meet the power needs of various applications
  • Easy to disassemble and maintain
  • The motor adopts modular structure design
  • Easy to clean and maintain daily
  • Effectively extend the service life of the motor
  • Maintaining motor efficiency

Low Cogging Torque.

The motor has low cogging effect and small torque pulsation. When running at low speed , the motor is very smooth and has excellent controllability .

Unique Design, Superior Materials.

The outlet end adopts widened. U-shaped gold-plated curved copper. The internal resistance is extremely low, and the gap between copper bars is increased, making it easy to weld.

  • International first-line brand bearings
  • 200°C high temperature resistant enamelled wire
  • Easily cope with the harsh test of competition
Specifications
  • Scale: 1/10th
  • Brushed / Brushless: BL
  • Sensored / Sensorless: SD
  • Feeling/No Feeling: Feeling
  • Pole Count: 4
  • KV Rating: 4200KV
  • Size: 3660
  • LiPo Cells: 2-3S
  • No-Load Current(A): 5.7A
  • Size & Weight
  • O.D.(mm): 36.6
  • Length (mm): 60.1
  • Shaft Diameter (mm): 5
  • Weight (g): 230g
  • Front Bearing: D13*D5*T4
  • Rear Bearing: D11*D5*T5
  • Recommended ESC: XERUN XR8 PRO G3
  • Application: 1/10 short truck (2WD), off-road, rally



Key Info:
  • Brand: Hobbywing
  • Part No: HW38020440
  • Barcode: 6938994430050
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