91HZ O.S. Engine  [OSMG1975]

With back-to-back FAI globe championships in 2005 and 2007, the 91SZ-H was effective by anyone's requirements. Now there's the 91HZ ?V a 91SZ-H redesigned along with the information worldwide's top pilots. It provides the tuning convenience and satisfaction perseverance the multi-time globe champ and design innovations that promote enhanced air conditioning, a tighter compression seal ?V and tuning convenience!

The slim profile associated with the heat sink brain assists the 91HZ fit entirely inside cooling shrouds without cutting or losing cooling power!
Two heat sinks ?V one on head, another in regards to the crankcase ?V enable airflow to hold away temperature and keep maintaining performance.
Better fundamental protection decreases motor sound and encourages smoother, more powerful performance.
Numerous up-to-date 61B carbohydrate takes determination to a different level. Dependability features concentrate on an insulating musical organization which prevents crankcase heat from impacting carbohydrate settings. a generous use of O-ring seals ?V two in regards to the main needle, you to the rotor ?V stops environment leakages and power modifications.
In-flight control for the needle valve guarantees smooth, constant runs.

Specs:

• Inventory volume: OSMG1975
• Displacement: 0.912 cu in (14.95 cc)
• Bore: 1.091 in (27.7 mm)
• Stroke: 0.976 in (24.8 mm)
• bodyweight: 21.8 oz (618 g)
• Practical RPM amount: 2,000-16,000
• manufacturing: 3.4 hp @ 15,000 rpm
• Includes: 61B carburetor, muffler, in-flight needle valve modification supply & #8 radiance plug