O.S. Speed 91HZ-R 3D Helicopter Engine
Following the popularity of the 91HZ-R with On-Demand Regulator, O.S. has now taken high-performance, high-speed helicopter engines to the next stage of evolution. Introducing the 91HZ-R Speed Engines - based on the 91HZ-R, factory-tuned at the O.S./Japan facilities and guaranteed to blow you away! Features: Lightweight, machined heat sink head...
Following the popularity of the 91HZ-R with On-Demand Regulator, O.S. has now taken high-performance, high-speed helicopter engines to the next stage of evolution. Introducing the 91HZ-R Speed Engines - based on the 91HZ-R, factory-tuned at the O.S./Japan facilities and guaranteed to blow you away!
Features:
- Lightweight, machined heat sink head
- Big-bore carburettors best-suited for the intended use (F3C or 3D)
- Best precision advanced exhaust cylinder timing (for F3C or 3D)
- Newly designed combustion chambers, shaped to match the big bore carburettors and advanced exhaust cylinder timing
- Lightweight, forged steel crankshaft counter weight to lower vibration for higher speeds
- Improved back plate shape, to accommodate Futaba's BPS-1 RPM Sensor and increase primary pressure for greater stability
- The cover plate has a cell to accept a sensor designed to install in the cover plate from Futaba GY701 / CGY750 Governor
Technical Specifications
- Displacement: 14.95cc
- Bore: 27.7mm
- Stroke: 24.8mm
- Output: 3.6ps/15,500RPM
- Practical RPM Range: 2,000-16,500
- Weight: 603g
Package Included:
- Engine Pack O.S. Speed Tuned .91HZ-R Helicopter Engine with Pump, 61G Carb
- #8 Glow Plug
- Check Valve
- Head Gasket 0.2mm
- OS Speed Decal and English Instruction Manual
Pipe: O.S. Powerboost Pipe 105
| Type: | |
|---|---|
| Vendor: | |
| SKU: |
OS-18642 |
| Weight: |
2.0 lb |