April 15, 2020

Ruddog RNX21.3 3.5cc nitro off-road engine

Ruddog Distribution from Germany have announced the release of their first high-performance nitro off-road engine. The high-quality RNX21.3 3.5cc competition engine features as specially developed crankcase for exceptional performance and great fuel economy with a rear ceramic main bearing and a DLC-coated and Tungsten-balanced crankshaft ensuring very high power output and reliable performance. The engine is of a 3+1 port long-stroke design for high yet controllable torque especially in the lower RPM ranges, making it ideal especially for smaller or technical tracks. Other features include a 22D carburettor for smooth throttle response and high fuel economy while an O-ring equipped combustion camber insert keeps dust away from the delicate parts of the engine. The engine is rounded out by a gold-colour cooling head whose standard height allows to run the engine leaner, extracting ever greater mileage from the engine.

– Standard height cooling head for exceptional heat dissipation
– Specially developed crankcase for high performance and improved milleage
– 3+1 port design for high torque in the low to mid RPM range
– Tungsten-balanced and DLC-coated crankshaft
– Ceramic main bearing
– 3-needle carburettor
– 6.0mm and 6.5mm venturi insert included

– Displacement: 3.49cc
– Bore: 16.27mm
– Stroke: 16.80mm
– Ports: 3+1
– Carburettor: Sliding
– Power output: 2.68PS @ 34,000RPM
– RPM range: 4,000 – 42,000RPM
– Weight: 352g

Source: Ruddog [ruddog.eu]


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