This is the OS 55HZ Hyper Ringed Helicopter Engine with the 40L Carburetor.
Ideal for 3D flight-power equal to .60 size heli engines
Same mounting bolt pattern and silencer size as the OS 50SX-H Hyper
Dual needle 40L carburetor allows independent adjustment of idling,hovering and high speed with four arm throttle lever for use with a variety of servo brands
HZ Hyper low profile black aluminum six fin cylinder head
OS 55HZ Hyper Ringed Helicopter Engine with 40L Carburetor, #8 glow plug and instruction manual
10% to 30% nitro Fuel with at least 18% lubricant (Helicopter Mix)
Exhaust system such as the OS PowerBoost Pipe
Displacement: 0.55 cu in / 8.93cc
Bore: 0.91" / 23mm
Stroke: 0.85" / 23.5mm
Practical RPM: 2,000-17,000 RPM
Output: 2.1 PS, 2.07 HP
Weight: 14.39oz / 408g
High Speed Needle Valve - Two turns open from fully closed.
Idle Mixture Control Screw - Factory set-do not adjust.
Medium Speed Needle Valve - Two turns open from fully closed.
This product was added to our catalog on Friday 26 September, 2014.