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

Back to CAM 100

	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