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News - O.S. 55HZ-Hyper Limited Edition w/Powerboost Pipe

Posted 07-17-2010 at 02:14 AM by Bri

This is the Limited Edition OS 55HZ Hyper Ringed Helicopter Engine
with the PowerBoost Exhaust Pipe.

Estimated release date of late July for approx. $499.99. Just in time for IRCHA and features “2010 Heli Jamboree” etched on the pipe and head

**Engine and pipe are numbered and anodized black in color**
**with the logo "2010 Heli Jamboree Edition" stamped on the engine and pipe.**

FEATURES: 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
PowerBoost pipe offers excellent performance from high RPM
manuevers to idling and hovering
HZ Hyper low profile six fin cylinder head
Two year limited warranty through manufacturer beginning at the date
of purchase

INCLUDES: OS 55HZ Hyper Ringed Helicopter Engine with 40L Carburetor, #8 glow
plug PowerBoost pipe and instruction manual

REQUIRES: 10% to 30% nitro Fuel with at least 18% lubricant (Helicopter Mix)
Starting equipment

SPECS: Engine;
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)
Carburetor Settings:
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
Distance/top of cylinder head-bottom of mounting tabs: 2.8" (72.6mm)
Distance between mounting holes same side: 0.68" (17.5mm)
Distance between mounting holes opposite side: 1.73" (44mm)
Distance between muffler mounting holes: 1.4" (37mm)
Cylinder Head Diameter: 1.8" (47mm)
Distance/bottom of crankcase to top of cylinder head: 3.6" (90.9mm)
Distance from center of engine to front bearing: 2.03" (51.6mm)
Distance from center of engine to end of Crankshaft: 3.2" (82.6mm)
Distance from center of engine to backplate bolt: 0.98" (25mm)
Distance from center of engine to throttle lever: 1.5" (38mm)
PowerBoost Pipe;
Length: 9.6" (244mm)
Diameter: 1.7" (44mm) at thickest point
Distance Between Muffler Mounting Hole Centers: 1.4" (37mm)
Exhaust Outlet Diameter: 0.35" (9mm)
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