Overview

The Hobbywing Black QUICRUN Fusion 8IGHT is the industry's first commercially available FOC (Field-Oriented Control) integrated power system specifically designed for 1/8th scale RC crawler enthusiasts in the UK and beyond. This revolutionary 2-in-1 brushless sensored system combines a high-performance 2300kV motor with an 80A ESC in one compact, integrated unit measuring just 42mm × 69mm. Whether you're tackling challenging rock crawling terrain, navigating muddy trails, or exploring snowy landscapes, this waterproof crawler system delivers the torque, control, and reliability that serious RC crawler pilots demand. The Fusion 8IGHT represents a significant leap forward in RC power system technology, offering features and performance levels previously only found in much larger and more complex setups.

If you're serious about RC crawling and want a brushless RC system that performs like nothing else on the market, the Fusion 8IGHT is engineered for you. This integrated design eliminates the space and wiring complications that plague traditional separate ESC and motor installations in tight 1/8th scale chassis layouts. The compact footprint makes frame design simpler and wiring cleaner, solving one of the biggest challenges faced by RC crawler builders working in confined spaces. Not only is it ideal for 1/8th scale models, but the intelligent design and power delivery also make it suitable for lighter-load 1/7th scale climbing models, giving you flexibility in your RC car building projects.

With IP67 waterproof protection, intelligent torque management, real-time drag brake adjustment, and three distinct operating modes, the QUICRUN Fusion 8IGHT is a ready to run power solution for anyone serious about RC crawler performance. This is genuine advanced technology that transforms how your RC crawler behaves on technical terrain, and it's available now from RC Model Shop, your trusted UK RC retailer.

Key Features

• FOC Drive Technology with Sensored Operation — The advanced Field-Oriented Control algorithm delivers an 8% efficiency increase and reduces power loss by 30% compared to the standard Fusion system, resulting in significantly greater power output and longer battery playtime during your RC crawling sessions. FOC drive operates smoothly even at extremely low speeds, producing strong, consistent torque that outperforms ordinary sensored systems and rivals brushed power systems in smoothness and responsiveness.
• Nearly Silent Motor Operation — Unlike many brushless RC systems that produce annoying whining or buzzing, the Fusion 8IGHT motor runs almost silently during operation, eliminating the driving noise that many RC enthusiasts find frustrating. This makes it the perfect choice for rock crawler pilots who want quiet, stealthy performance on technical terrain.
• 80A Continuous / 240A Peak ESC Output — The integrated ESC supports continuous output of 80A with peak power reaching 240A, delivering impressive climbing power and responsiveness whether you're crawling over rocks, ascending steep hills, or navigating challenging obstacles. This power level ensures your RC crawler has the muscle needed for serious off-road performance.
• 4S LiPo Battery Support (Up to 14.8V) — The ESC accommodates 2-4S LiPo batteries or 6-12 cell NiMH packs, giving you flexibility in power source selection and the option to run higher voltage for increased performance when needed. This compatibility range means you can optimise your setup for specific crawling conditions and terrain challenges.
• Intelligent Torque Management — The ESC automatically adjusts torque output based on driving conditions; when climbing uphill, it increases output to overcome resistance and maintain momentum; when descending, it reduces torque to stabilise speed and prevent runaway. This intelligent system makes your RC crawler significantly easier to control on variable terrain.
• Real-Time Drag Brake Force Adjustment — When the yellow signal line is connected to an available receiver channel, your radio transmitter can adjust drag brake force in real time, allowing instant fine-tuning to match different environmental conditions and obstacle types without stopping to reprogram.
• Professional Multi-Gear Brake Control — The system features 8 gears of adjustable drag brake force combined with 9 gears of drag brake acceleration adjustment, providing exceptional parking capability and secure hill-holding performance. This comprehensive brake tuning allows you to dial in the perfect braking response for any crawling scenario.
• IP67 Waterproof and Dustproof Rating — The entire integrated power system features IP67 protection, enabling reliable operation in muddy, sandy, icy, snowy, and wet conditions without fear of water or dust damage. This all-weather capability means your RC crawler performs consistently regardless of environmental challenges.
• Advanced Electronic Power Switch — Unlike standard on/off switches, this electronically controlled switch features a waterproof and dustproof housing with shock-resistant construction, ensuring long-term reliability even through harsh bashing sessions and rough handling.
• 13 Fully Adjustable Parameters — The system offers extensive customisation through 13 adjustable parameters including operation mode selection, battery configuration, protection thresholds, motor rotation direction, BEC voltage, all brake settings, reversing force, braking force, speed smoothness, start acceleration, and throttle midpoint area. Four new parameters (Max Brake Force, RPM Decrease Rate, Punch, and Neutral Range) have been added for even greater control.
• Three Operating Modes — Choose from Normal Mode with brake (forward and reverse with drag brake effect), Normal Mode without constant speed, or Constant Speed Mode (fixed speed regardless of driving environment). This flexibility ensures you can select the operating characteristic that best suits your preferred driving style and terrain type.
• Powerful 13A BEC Output — The integrated voltage regulator provides continuous BEC current output of 13A, sufficient to power multiple standard servos, high-voltage servos, and accessory equipment such as lights and winches without requiring external power supplies.
• Switchable BEC Voltage Output — The BEC voltage can be switched between 6V, 7.4V (3S LiPo only), and 8.4V, accommodating a wide variety of servo specifications and allowing you to match voltage perfectly to your servo requirements.
• Integrated Design with Compact Footprint — The motor and ESC all-in-one construction is 6mm shorter than the previous Fusion model (58mm vs 64mm), with a slim 42mm diameter motor that creates a cleaner overall appearance and opens up new design possibilities for tight RC crawler chassis layouts.
• LED and LCD Programming Support — The system is fully programmable via LED Program Box or LCD G2 Program Box, providing accessible configuration options whether you prefer simple LED-based programming or more detailed LCD-based parameter adjustment.
• XT60 Connector with Heavy-Gauge Wiring — The power connection uses XT60 connectors with heavy-gauge black 13AWG (250mm) negative and red 13AWG (250mm) positive wires, ensuring reliable power delivery and minimal voltage drop during high-current crawling sessions.
• 4-Pole Motor Design — The 4-pole motor configuration optimises the balance between power delivery and efficiency, providing the smooth low-end torque and responsiveness that rock crawlers demand without excessive power draw.

Technical Performance

The Hobbywing QUICRUN Fusion 8IGHT represents a significant engineering achievement in integrated RC power system design. The 2300kV brushless motor paired with the 80A continuous (240A peak) ESC creates a system perfectly calibrated for 1/8th scale crawler applications and compatible with lighter 1/7th scale climbers. The motor measures 42mm in diameter by 69mm in length, with a 5mm shaft diameter and 18.5mm exposed shaft length, ensuring compatibility with standard 1/8th crawler drivetrains whilst maintaining the compact dimensions critical for space-constrained chassis designs. The entire integrated system, including heavy-gauge power wires and XT60 connectors, weighs just 338 grams, providing excellent power-to-weight ratio that doesn't compromise your RC crawler's balance and handling characteristics.

The FOC (Field-Oriented Control) drive algorithm is the key to the Fusion 8IGHT's exceptional performance characteristics. By increasing efficiency by 8% and reducing power loss by 30% compared to standard sensored systems, the Fusion 8IGHT delivers noticeably stronger output and longer runtime from identical battery packs. The advanced algorithm enables smooth, linear throttle response at all speeds, particularly at the extremely low speeds essential for technical rock crawling where precision and control define success. Unlike conventional sensored systems that can feel jerky or unresponsive at low speeds, the Fusion 8IGHT provides torque delivery so smooth and predictable that pilots often report it feels more like a brushed system but with superior consistency and power. The sensored design also eliminates the need for manual throttle calibration during startup, making setup quicker and more reliable.

The integrated ESC supports 2-4S LiPo batteries (6-12 cell NiMH), with switching-mode BEC regulators delivering switchable 6V/7.4V/8.4V output at up to 13A continuous current. This allows powering multiple servos and accessories without auxiliary power supplies. The three selectable operating modes provide versatility: Normal Mode with drag brake effect for responsive braking, Normal Mode without constant speed for familiar brushless-style operation, and Constant Speed Mode for automatic speed stabilisation on variable terrain. The intelligent torque output system automatically adjusts power delivery based on terrain slope and resistance, making uphill climbs smoother whilst preventing downhill runaway.

With IP67 waterproof and dustproof protection, the Fusion 8IGHT handles all-weather RC crawler operations including muddy trails, sandy terrain, snow-covered obstacles, icy surfaces, and water crossings. The advanced electronic switch features waterproof and dustproof housing with shock-resistant construction, surviving the impacts and harsh treatment typical of serious RC bashing without switch failure. The system includes 13 fully adjustable parameters accessible via LED Program Box or LCD G2 Program Box programming, offering extensive customisation for different driving styles and terrain conditions.

What's in the Box

• Hobbywing QUICRUN Fusion 8IGHT integrated motor and ESC system (all-in-one unit)
• 2300kV brushless sensored motor with 4-pole configuration
• 80A continuous / 240A peak ESC with IP67 waterproof rating
• Power wiring harness with black 13AWG negative wire (250mm) and red 13AWG positive wire (250mm)
• XT60 power connector pre-installed
• Yellow signal wire for real-time drag brake adjustment

What You Need to Complete

• LiPo battery pack (2-4S recommended) or NiMH battery pack (6-12 cells) with XT60 connector compatibility
• Battery charger suitable for your selected battery type
• RC receiver compatible with your radio transmitter
• Servo(s) for steering control and optional accessories
• LED Program Box or LCD G2 Program Box (optional but recommended for parameter adjustment)
• RC crawler vehicle chassis compatible with 1/8th scale or 1/7th scale light-load models

Frequently Asked Questions

• Is the Hobbywing Fusion 8IGHT suitable for RC crawler beginners? — Yes, absolutely. Whilst the system is advanced, its intelligent torque management, multiple operating modes, and straightforward programming make it accessible to newer RC crawler pilots. The three selectable operation modes mean beginners can start with simpler Normal Mode operation before exploring more advanced Constant Speed Mode. However, the full extent of this system's capabilities rewards experienced pilots who invest time learning its parameter adjustment features.
• What batteries does the Fusion 8IGHT require? — The system supports 2-4S LiPo batteries or 6-12 cell NiMH batteries. A 3S LiPo (11.1V) or 4S LiPo (14.8V) provides excellent performance for crawling applications. The switchable BEC voltage (6V/7.4V/8.4V) allows powering most standard servos and accessories directly from the included voltage regulator without separate power supplies.
• How does the FOC drive compare to standard sensored brushless systems? — The Fusion 8IGHT's FOC algorithm increases efficiency by 8% and reduces power loss by 30%, resulting in noticeably stronger output and longer battery runtime compared to conventional sensored systems. More importantly, FOC drive delivers significantly smoother operation at low speeds with consistent torque delivery, making it superior for precision rock crawling where control at extremely low speeds is essential. Many pilots report it combines the smoothness of brushed systems with the power and efficiency of brushless technology.
• Can I adjust braking force without reprogramming? — Yes, one of the standout features is real-time drag brake adjustment. By connecting the yellow signal wire to an available receiver channel, your radio transmitter can adjust drag brake force instantaneously whilst driving, allowing on-the-fly fine-tuning to match different terrain and obstacle types.
• Is this system truly waterproof? — The system carries an IP67 waterproof and dustproof rating, meaning it handles splash-proofing, water-resistance, and dust-proofing under normal use conditions. It can operate reliably in muddy, sandy, icy, snowy, and wet environments. However, IP67 is not permanent protection; do not soak the system in water for extended periods or the protection performance may degrade due to daily wear. With normal RC crawler operation including water crossings and wet terrain, it performs excellently.
• What makes the compact size advantageous? — The integrated motor and ESC measure just 42mm × 69mm, solving the persistent wiring and space challenges in 1/8th scale crawler chassis where internal space is extremely limited. This compact footprint makes frame layout cleaner and simpler whilst enabling innovative chassis designs previously impossible with separate motor and ESC components.
• How many programming parameters does it offer? — The system provides 13 fully adjustable parameters: operation mode selection, lithium battery number configuration, low voltage protection threshold, overheat protection threshold, motor rotation direction, BEC voltage selection, drag brake force (8 gears), drag brake acceleration (9 gears), maximum reversing force, maximum braking force, speed smoothness, start acceleration, and throttle midpoint area. Four new parameters (Max Brake Force, RPM Decrease Rate, Punch, and Neutral Range) were added for enhanced customisation.
• What's the difference between the three operating modes? — Normal Mode (forward/reverse with brake) provides drag brake effect when throttle is released; Normal Mode (forward/reverse) offers free-rolling without constant speed like brushless systems; Constant Speed Mode maintains fixed speed regardless of driving environment or terrain slope, automatically adjusting throttle output for consistent velocity. Choose the mode that matches your driving style and terrain demands.
• Does it work with 1/7th scale crawlers? — Yes, the system's compact size and power output make it suitable not only for 1/8th scale models but also for lighter-load 1/7th scale crawling vehicles, expanding its application range beyond standard 1/8th scale platforms.
• What programming interface options exist? — The system supports programming via LED Program Box for simple parameter adjustment or LCD G2 Program Box for detailed configuration. Programming connects through a dedicated independent programming interface at the switch position, making setup accessible without requiring additional external programmers.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Hobbywing Black QUICRUN Fusion 8IGHT 2-in-1 Brushless Sensored Crawler System with 2300kV Motor, 80A ESC, IP67 Waterproof Rating – HW30120404 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.