The Firewall Forward CAM 100 is a 100 hp (75 kW) four-cylinder, four-stroke liquid-cooled piston aircraft engine built by Firewall Forward Aero Engines.^[1] Originally designed and built by Canadian Airmotive as the CAM 100 and later marketed by The Cam-Fire Engine Group,^[2] it is based on a Honda Civic automotive piston engine.^[3]

Applications

• ARV Griffin
• Blue Yonder Merlin
• Denney Kitfox V
• Historical PZL P.11c
• Historical Ryan STA
• Midget Mustang^{[citation needed]}
• Murphy Rebel
• Zenith Zodiac CH 601

Specifications (CAM 100)

Data from World Directory of Leisure Aviation^[1] & Firewell Forward Aero Engines^[3]

General characteristics

• Type: Four-cylinder, four-stroke piston engine
• Bore: 74 mm (3.07 in)
• Stroke: 86.5 mm (3.41 in)
• Displacement: 1488 cm₃ (90.7 cu in)
• Length: 32 inches (810 mm)
• Width: 19.5 inches (500 mm)
• Height: 25 inches (640 mm)
• Dry weight: 226.2 pounds (102.6 kg)

Components

• Valvetrain: overhead camshaft
• Fuel type: 90 Octane petrol or 100LL aviation petrol
• Cooling system: Uses a water-glycol mixture with a camshaft belt driven water pump.
• Reduction gear: 2.4:1 reduction ratio (6,000 rpm engine, 2,500 rpm propeller).
• Starting system Electric gear reduction starter.

Performance

• Power output: 100hp (74.6 kW) at propeller flange.
• Specific power: 130 kW/L (1.10 hp/cu in)
• Compression ratio: 9.6:1
• Specific fuel consumption: 0.43 lb/bhp/hr at 80% power