RUDDOG Racing RNX.4 3.5ccm Nitro Offroad Competition Engine (16% Nitro Version)
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Description
Overview
The RUDDOG Racing RNX.4 is a powerful nitro offroad engine developed for serious racers. Based on the successful RNX22.3, it offers longer runtime, smoother driving characteristics, and higher durability. Key features include the new DLC-coated crankshaft for more strength and improved fuel flow, a redesigned cylinder head optimized for 25–30% nitro fuel, and Revolution Design upgrades such as the Ultra Backplate and Ultra Carburetor Dust Cover Seal for better efficiency and protection. Designed for top performance, the RNX.4 delivers powerful performance, excellent fuel efficiency, and comes with a high-quality RUDDOG engine bag.
Features
- Based on the proven RNX22.3 engine platform
- Prototype tested at the 2024 World Championship by Marcus Kaerup
- Newly designed DLC-coated crankshaft for less friction and improved durability
- Optimized inner cylinder head for 16% nitro fuel for maximum performance and reliability
- Revolution Design Ultra backplate for lower fuel consumption and longer runtime
- Revolution Design Ultra carburetor dust cover seal for better protection and durability of the carburetor
- Optimized power curve for more driving comfort and control
- Improved fuel consumption for longer refueling intervals
- Includes RUDDOG engine bag for safe storage and transport
| Cylinder capacity | 3.5 cc |
| Application | 1/8 Nitro Offroad Racing |
| Fuel version | 16% Nitro |