Engine Comparison Chart

Engine Specification Comparison Chart

 

CAM 100

Rotax 912

EA81

Type 4-cylinder, 4 stroke, in-line, liquid cooled 4-cylinder, 4 stroke, opposed cylinders, liquid cooled 4-cylinder, 4 stroke, opposed cylinders, liquid cooled
Core Honda Rotax Subaru
Power Output 100 hp (75 kw) at propeller flange MAX: 80 hp @ 5500 rpm 100 hp
Displacement 1488 cc (90.7 in.) 1,211.2 cc (73.91 in.) 1781 cc (108 in.)
Bore 74 mm (3.07 in.) 79.5 mm (3.13 in.) 92 mm (3.84 in.)
Stroke 86.5 mm (3.41 in.) 61.0 mm (2.40 in.) 67 mm (2.68 in.)
Direction of Rotation Clockwise facing propeller flange Counter-clockwise (facing propeller flange)
Cooling Water-glycol mixture Liquid cooled cylinder heads, air cooled cylinder
Block One piece aluminum with iron liners
Crankshaft Full girdled, hardened, 5 main precision bearings Case-hardened with plain bearings
Lubrication Full pressure, internal gear type pump, wet sump Dry sump with trochoid pump, cam shaft driven, oil return by BLOW-BY gas a) Dry sump, remote reservoir – engine b) Self contained oil sump / Internal Mist – reduction
Ignition Redundant dual digital electronic Capacitor discharge double ignition, generator with electronic advance and integrated magneto, redundant Crank Triggered, dual ignition, single spark plug
Carburation 2 barrel progressive opening downdraft Carburated
Reduction System 100 mm (3.93 in.) HTD cog belt Integrated reduction gear, torsional shock absorption Helical Cut, Steel spur Gear type
Reduction Ratio 2.4:1 2.27:1 1.48 to 3.41:1 (2.34:1 std)
Oil Type 5W30 Synthetic SAE 20W50 or SAE 30
Oil Quantity 3.5 liters (3.7 US quarts) 3.0 liters (.8 US gal)
Weight 226 lbs (102.2 kg) 140.8 lbs (63.9 kg) 214 lbs (97.1 kg)
Fuel Required 90 Octane unleaded, minimum (R + M)/2. Can also use 100 LL Aviation Gasoline Premium grade leaded gas or SUPER ROZ 95 unleaded Auto Lead & No Lead, Reg. or Premium Aviation 80/87 (red) and 100 LL
Cylinder Head One piece aluminum cross flow design 4 separate cylinder heads
Compression Ratio 9.6:1 9.0:1 8.9:1
Camshaft Cast alloy, heat treated parkerized
Alternator 15 Amp belt drive (65 amp optional) 12V/250 W AC, 18 Amp Dual (2) “V” type Belt Drive
Specific Fuel Consumption .43 lb/bhp/hr at 80% power .45 lb/bhp/hr @ 75% cruise
Starting System Electric gear reduction starter Integrated electric starter 2 kw, 3 stage, Geared Electric Starter
TBO 2500 hours 1,200 hours
Warranty 5 Years / 500 Hours 6 Months (1 Year Extended – Optional) 1 Year

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Our Products


CAM100 Honda based 100 Hp engine
for homebuilt and experimental aircraft.

CAMDRIVE 500 for V8 engines
up to 700 horsepower.

CAM125 Honda based 125-150 Hp engine
for homebuilt and experimental aircraft.