Description:

O.S. MAX-55HZ Hyper with O.S. Power Boost Pipe.

No need to buy an inferior and more expensive after market pipe!

The O. S. 55HZ-H Hyper Ringed Heli engine is cause to rejoice for 3D heli flyers! The 55-HZ-H Hyper Ringed engine cranks out optimum power with a minimum of space! The PowerBoost Pipe 50/55 is a first from O.S. ?designed especially for helis, improving efficiency and power while featuring a compact size. It also fits the 50SX-H Hyper Ringed heli engine.

FEATURES :

• Features the same mounting pattern and silencer size as the 50SX-H Hyper engine
• Dual needle 40L carburetor with four-arm throttle lever is designed to optimize the power, performance and reliability of the 55HZ
• Produces a range of 2,000 - 20,000 rpm
  
  SPECIFICATIONS:

• Displacement: 0.55 cu in (8.93cc)
• Bore: 0.91" (23mm)
• Stroke: 0.85" (23.5mm)
• Practical RPM: 2,000-17,000 RPM
• Weight: 14.39oz (408g)
• Output : 2.1h.p / 17,000 r.p.m.