Combination Octane Rating Unit FTC-M

Basic Information

Standard

ASTM D2699 RON ASTM D2700 MON

Working Range

40-120

Operation Conditions

Engine Speed (Motor)

900±9 rpm

Engine Speed (Research)

600±6 rpm

Ignition Timing (Motor)

Variable as Cylinder Height (C.R.) is Changed

Ignition Timing (Research)

13° BTDC

Intake Air Temperature (Motor)

38°C±1°C

Intake Air Temperature (Research)*1

52°C±1°C at Std. Barometer,Depends on Barometric Pressure

Intake Mixture Temperature (Motor)*2

149°C±1°C

Cylinder Jacket Coolant Temperature

100°C±1.5°C

Crankcase Oil Temperature

57°C±8.5°C

NOTE：*1 If IAT tuning is used to qualify the engine as fit-for-use, the temperature can be adjusted within ±22°C from the base temperature specified for the prevailing barometric pressure, and this temperature shall then be maintained within ±1°C when CR or KI results used for octane determination on each fuel are recorded. See ASTM D2699 for details.

NOTE：*2 If intake MIXT tuning is used to qualify the engine as fit-for-use, the temperature can be adjusted between 141°C-163°C, and this temperature shall then be maintained within ±1°C when the CR or KI results used for octane determination on each fuel are recorded. See ASTM D2700 for details.

Engine Information

Compression Ratio (C.R.)

4:1-18:1

Cylinder Bore (Diameter)

82.55 mm (Standard)

Stroke

114.30 mm

Carburetor Venturi (Research)

14.30 mm

Intake Valve Clearance (Hot)

0.20 mm±0.025 mm

Exhaust Valve Clearance (Hot)

0.20 mm±0.025 mm

Intake Valve Opens Timing

10°±2.5° ATDC

Intake Valve Closes Timing

34° ABDC

Exhaust Valve Opens Timing

40° BBDC

Exhaust Valve Closes Timing

15°±2.5° ATDC

Crankcase Oil Pressure

172 kPa - 207 kPa

Function Information

Operating Panel

SXCP Digital Control Panel

Knock Meter

Automated Digital Knock Meter

Compression Ratio Adjustment

Motor-Driven (Auto-Adjust)

Compression Ratio Display Device

Dial Indicator & Digital Counter

Engine Speed Conversion

Dual-Speed Motor

Carburetor

Four-Bowl Falling Level (with a cooling function)

Ignition Timing Display

Digital (Auto-Set)

Crankcase Pressure Display

Yes

Electronic Barometer

Yes

Crankcase Oil Heater

Yes

Oil Temperature Display

Yes

Report Generation

Yes

Maintenance Log

Yes

Air Humidity Control Apparatus

Yes

Exhaust Surge Tank System

Yes

Unit Protection Systems

Yes