Ruddog Products 0822 - RNX.4 3.5ccm Nitro Offroad Competition Engine

The RUDDOG Racing RNX.4 is the next evolution of RUDDOG’s high-performance nitro offroad engines, building on the success of its predecessor, the RNX22.3. Developed in collaboration with top racers, the RNX.4 was used in its prototype stage by Marcus Kaerup at the 2024 World Championships in Redovan, Spain, where he secured a place in the A-Main. This latest version features significant improvements in runtime, drivability, and durability, ensuring maximum efficiency and consistency on the track.

Advanced Performance Features

At the heart of the RNX.4’s improvements is the newly designed DLC-coated crankshaft, which increases durability, and improves fuel flow efficiency for a more responsive and consistent power band. Additionally, the optimized inner engine head is specifically designed for 16% nitro fuel, ensuring maximum performance and reliability under racing conditions.

Further enhancements include the Revolution Design Ultra Backplate, which improves fuel flow and efficiency, delivering extended runtime and smoother throttle response. Another premium addition is the Revolution Design Ultra Carburetor Dust Cover Seal, enhancing the carburetor’s sealing to protect against dust and debris, prolonging engine life, and ensuring consistent performance in harsh racing conditions.

Designed for serious competitors, the RNX.4 delivers explosive power, excellent fuel economy, and improved handling characteristics, making it a top choice for professional and ambitious racers. The engine is supplied in a high-quality RUDDOG engine bag for secure transportation and protection.

Features:

• Based on the proven RNX22.3 engine platform
• Prototype-tested at the 2024 World Championships by Marcus Kaerup
• Newly designed DLC-coated crankshaft for reduced friction and improved durability
• Optimized inner engine head for 16% nitro fuel to maximize performance and reliability
• Revolution Design Ultra Backplate for improved fuel efficiency and longer runtime
• Revolution Design Ultra Carburetor Dust Cover Seal for better carburetor protection and durability
• Optimized power curve for increased drivability and control
• Enhanced fuel economy for longer stints between refuels
• Includes RUDDOG engine bag for safe storage and transport

Specifications:

• Displacement: 3.5cc
• Application: 1/8 Nitro Offroad Racing

With the RUDDOG Racing RNX.4, you get cutting-edge racing technology, tested on the world stage and refined for peak performance. Whether you're chasing lap times or podium finishes, this engine delivers the power, efficiency, and reliability needed to stay ahead of the competition!