O.S #18751 – OS MAX-105HZ-R W/powerboost Pipe 105

This is the engine that precision aerobatic and 3D heli pilots have been waiting
for! In order for 90-sized machines to nail huge maneuvers and hardcore, smackdown-style
3D it’s all about power, and the 105HZ-R has it in abundance. Displacement has
been increased by 15%, while a huge venturi rams air into the carburetor, producing
massive power. Plus, they fit in a .90-sized mounting pattern.

Features:

• Featuring the displacement of a 1.05 in the mounting space of a .90.
• More displacement means more power, and these engines boost displacement
  by 15%
• A huge venturi boosts output even further.
• The machined, blue anodized heatsink head is light in weight, and cools
  the engine efficiently.
• An extra feature on the 105HZ-R is the pressurized DRS (Demand Regulator
  System), which ensures consistent fuel flow regardless of the heli’s attitude.

Specs:

• Displacement: 1.048 cu in (17.17 cc)
• Bore: 1.442 in (29 mm)
• Stroke: 1.024 in (26 mm)
• Practical RPM: 2.000-16,500
• Output: 3.8 ps @ 15,000 rpm
• 105HZ Weight: 21.03 oz (596 g)
• 105HZ-R Weight: 21.46 oz (608 g)