EngineBuzz Resources


A look back at “Some Sources of Error in Laboratory Knock Ratings”

“Some Sources of Error in Laboratory Knock Ratings” by W. E. Adams and J. D. McCullough In the late 1950s, researchers at Ethyl Corporation conducted a study to look at the effects on the Research Octane Number by various variables within the engine environment. This study highlighted the differences that can be seen when pieces […]


Reference Fuel Blending System for Octane/Cetane Rating Engine

Specifications Conforms to the specifications of: ASTM D2699, ASTM D2700, ASTM D2885, ASTM D613 Application: For Cetane and Octane Measurement Measurement Mode: Gravimetric Measurement by Precision Balance Fuel Blending Mode: Automatic Fuel Blending Unit with Software Operating Mode: Built-in Touch Screen Control Panel Tank Quantity: 6 tanks Accuracy: ±0.01 ON/CN Speed: 2 min / 500 […]


Combination Octane Rating Unit – K90901 by Koehler Instrument Company

Test Method This laboratory test method covers the quantitative determination of the knock rating of liquid spark-ignition engine fuel in terms of Research O.N. and the Motor Octane Number, including fuels that contain up to 25 % v/v of ethanol. The sample fuel is tested using a standardized single cylinder, four-stroke cycle, variable compression ratio, carbureted, […]


SSD7400 Dual Digital Counter

New for 2019! As technology progresses, modern solutions to dated equipment not only becomes more user-friendly but frequently more economical. Continuing our efforts to simplify and modernize the testing environments of gasoline, a dual digital counter was developed. It is our attempt to provide a drop-in, modern alternative for existing dual digital counters, now made […]


SSD7200 Digital Temperature Controller

New for 2019! As technology progresses, modern solutions to dated equipment not only becomes more user-friendly, but frequently more economical. Continuing our efforts to simplify and modernize the testing environments of gasoline, a digital temperature controller was developed. It is our attempt to provide a drop-in, modern alternative for existing temperature controllers. Digital Temperature Controller […]


Digital Dual Hour Meter

New for 2019! A critical piece of equipment on Octane engine consoles is the hour meter. It tracks the life of the engine and allows operators to perform timely maintenance procedures and judge the overall life expectancy of the engine equipment. Modern alternatives are required to provide longevity for the engine console. Two 6-digit hour […]


501-C Potentiometer Linearity

“A chain is no stronger than its weakest link.”This is especially true within the scientific environment that is the knock engine lab. Every effort is made to improve the quality of results that are reported by a respective lab. All the training and maintenance procedures that have been implemented and completed may only achieve a […]


Dual hour meters: Analogue Vs Quartz

Older Engine timers do not contain a timekeeping oscillator such as a pendulum or balance wheel, but instead counts the oscillations of the AC utility current from its power source to keep time. It consists of a small AC synchronous motor, which turns the clock’s dial through a reduction gear train. The motor contains electromagnets […]


Laboratory Barometric References

A barometer is a scientific instrument used to measure air pressure. Pressure tendency can forecast short term changes in the weather. Many measurements of air pressure are used within surface weather analysis to help find surface troughs, high-pressure systems, and frontal boundaries.Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially […]


Humidifying Intake Air Tower

StanCo Scientific Humidifying Intake Air Tower with DewTrak II-MO™ Control We have extensive experience with closed-loop cooling systems in other instrumentation types. We took that knowledge and applied it to carburetor cooling issues to use with Octane engines. To further meet the ASTM requirements, a heavy-duty vaporizer was introduced to ensure that the air stream […]

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