The Viking 175
We have multiple engine options available and will help you find what engine will work best for your mission and application.
Viking 175 Information
We see a bright future for this model
The 175 HP engine has a great power to weight ratio and over 725 lb. of thrust.
Type: 2L, Port Injected, Inline 4-cylinder
Horsepower: 175 @ 6800 RPM (2900 prop)
Torque: 321 ftlb @ 1,800 prop rpm
Weight: 260 lbs.
Gearbox Ratio: 2.33/1
Compression Ratio: 10.8/1
Bore and Stroke: 86.0 mm / 85.9 mm
Block Material: Aluminum
Takeoff RPM: Engine 5800 / Prop 2500
Cruise RPM: Engine 5400 / Prop 2300
Static RPM – STOL Competition: Engine 6800 / Prop 2900
Static RPM – Cross Country: Engine 4800 / Prop 2100
Idle RPM: 1400-1600 RPM
Coolant Temperatures: 200 – 220 F
Oil Temperature: Not Measured
Oil Pressure: 20 – 125 Psi
Fuel Pressure: 43 Psi from Header tank to the engine.
Fuel: 89+ Octane or higher grade - 100LL (MUST use Decalin and is not the preferred fuel)
Length: 27 in.
Height: 25 in.
Width: 24 in.
Gearbox Oil: 12 ounces 75W-90 Mobile 1 Synthetic Gear Oil.
Gearbox Temperature: Should not exceed 240 Fahrenheit.
Engine Oil: 0W-20
Coolant: Evans NPG Plus
Coolant System Pressure: 0 Psi
Maintenance:
Engine Oil Change: Every 50 hours (4 quarts)
Gearbox Oil Change: Every hour for the first 10 hours, then every 25 hours
The Viking 175 is popular with Rans and Zenith Pilots and Builders
ENGINE DETAILS
The Viking 175 engine is a 4-cylinder engine that can produce 175 horsepower at 6800 RPM. It is found in the Honda Civic Si and HRV models. The engine features an aluminum block and cylinder head with DOHC design. It has a compression ratio of 10.8:1 and a redline of 6,800 RPM. The engine is known for its high-revving capabilities and performance, as well as its fuel efficiency and reliability.
It is part of Honda’s K-series engine family. The engine features an aluminum block and cylinder head, DOHC (Double Overhead Camshaft) design, and VTEC (Variable Valve Timing and Lift Electronic Control) system, which help to improve its performance and efficiency.
Engine Origins:
The Viking 175 engine draws inspiration from the Honda Civic Si and HRV models.
It features an aluminum block and cylinder head with a DOHC (Double Overhead Camshaft) design.
With a compression ratio of 10.8:1 and a redline of 6800 RPM, it’s a high-revving powerhouse.
Key Features:
VTEC (Variable Valve Timing and Lift Electronic Control): This system optimizes engine breathing at different RPM ranges, enhancing performance and efficiency.
4 Valves Per Cylinder: Efficient air intake and exhaust contribute to improved engine performance.
Advanced Technologies: The Viking 175 leverages DOHC and VTEC for reliability, durability, and fuel efficiency.
Popular Choice:
Builders of experimental aircraft, especially those flying Rans and Zenith models, favor the Viking 175.
Pilots appreciate its reliability, ease of installation, and impressive performance.
Hoisting the 175. Need one 8x1.25mm bolt and one 10x1.2mm bolt
