HZ is the regular version, and HZ-R is the version that carburetor has DRS system. The engine displacement is from 14.95 c.c. at 91 grade up to 17.17 c.c. at 105 grade. The diameter of piston is from 27.7mm to 29mm, and the stroke is from 24.8mm to 26mm, which means that not only the piston becomes larger, but also the crankshaft has changes to accommodate larger stroke. Furthermore, the carburetor also has big differences such as the large-sized inlet.
17.17cc
29.0mm
26.0mm
2000-16.500Rpm
3.7ps-15,000Rpm
596.2g
FEATURES: Same mounting dimensions as a .90 cu in engine
Machined blue anodized aluminum heatsink cylinder head
Velocity stack increases airflow and enhances engine performance
Backplate accepts the Futaba BPS-1 RPM sensor for the GY701 and
CGY750 gyros
Ideal bore and stroke ratio for lowest vibration
REQUIRES: Fuel: Heli blend with 15%-30% nitro content
