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Standard

AIRFLOW REFERENCE STANDARDS
1990-06-01
HISTORICAL
J228_199006
The purpose of this SAE Recommended Practice is to establish reference standards for airflow measurements in the ranges required for testing automotive engine induction systems and to describe equipment that will facilitate the use of such standards to check the accuracy of various equipment and methods.
Standard

AIRFLOW REFERENCE STANDARDS
1995-04-10
CURRENT
J228_199504
The purpose of this SAE Recommended Practice is to establish reference standards for airflow measurements in the ranges required for testing automotive engine induction systems and to describe equipment that will facilitate the use of such standards to check the accuracy of various equipment and methods.
Standard

Airflow Reference Standards
2021-11-29
WIP
J228
The purpose of this SAE Recommended Practice is to establish reference standards for airflow measurements in the ranges required for testing automotive engine induction systems and to describe equipment that will facilitate the use of such standards to check the accuracy of various equipment and methods.
Standard

CHASSIS DYNAMOMETER TEST PROCEDURE—HEAVY-DUTY ROAD VEHICLES
1992-04-01
CURRENT
J2177_199204
This SAE Recommended Practice has been adopted by SAE to specify: a A standard procedure for chassis dynamometer testing of heavy-duty road vehicles for the purpose of determining power delivered through the drive tires. b A method of correcting observed power to reference test conditions. c A method of analyzing the test data to determine if the test results are within expected power ranges.
Standard

Chassis Dynamometer Test Procedure-Heavy-Duty Road Vehicles
2023-06-08
WIP
J2177
This SAE Recommended Practice has been adopted by SAE to specify: a. A standard procedure for chassis dynamometer testing of heavy-duty road vehicles for the purpose of determining power delivered through the drive tires. b. A method of correcting observed power to reference test conditions. c. A method of analyzing the test data to determine if the test results are within expected power ranges. This document is applicable to DOT Class 6, 7, and 8 and on and on/off highway heavy-duty road vehicles equiped with compression ignition engines, manual or automatic transmissions, and single or tandem rear drive axles.
Standard

ENGINE POWER TEST CODE—SPARK IGNITION AND DIESEL
1983-06-01
HISTORICAL
J1349_198306
This standard test code has been adopted by SAE to specify: (a) A laboratory engine dynamometer test procedure. (b) A basis for engine power rating. (c) A method for correcting observed power to standard inlet air conditions. The pressure and temperature correction formulas contained herein should be used only within the specified range of conditions (see paragraph 8.4.1) and are not intended for altitude derating.
Standard

ENGINE POWER TEST CODE—SPARK IGNITION AND DIESEL
1980-12-01
HISTORICAL
J1349_198012
This standard test code has been adopted by SAE to specify: (a) A laboratory engine dynamometer test procedure. (b) A basis for engine power rating. (c) A method for correcting observed power to standard inlet air conditions. The pressure and temperature correction formulas contained herein should be used only within the specified range of conditions (see paragraph 8.4.1) and are not intended for altitude derating.
Standard

ENGINE ROTATION AND CYLINDER NUMBERING
1995-06-28
HISTORICAL
J824_199506
This SAE Standard was developed to provide a method for indicating the direction of engine rotation and numbering of engine cylinders. The document is intended for use in designing new engines to eliminate the differences which presently exist in industry.
Standard

ENGINE ROTATION AND CYLINDER NUMBERING
1986-01-01
HISTORICAL
J824_198601
This report was developed to provide a method for indicating the direction of engine rotation and numbering of engine cylinders. The report is intended for use in designing new engines to eliminate the differences which presently exist in industry.
Standard

Engine Power Test Code - Engine Power and Torque Certification
2015-09-10
HISTORICAL
J2723_201509
This document specifies the procedure to be used for a manufacturer to certify the net power and torque rating of a production engine according to SAE J1349 (Rev. 8/04) or the gross engine power of a production engine according to SAE J1995. Manufacturers who advertise their engine power and torque ratings as Certified to SAE J1349 or SAE J1995 shall follow this procedure. Certification of engine power and torque to SAE J1349 or SAE J1995 is voluntary, however, this power certification process is mandatory for those advertising power ratings as “Certified to SAE J1349” or “Certified to SAE J1995.” In the event that an engine made by one manufacturer is sold to a consumer in a vehicle produced by a second manufacturer, engine certification may be completed by either manufacturer or by both manufacturers working together.
Standard

Engine Power Test Code - Engine Power and Torque Certification
2021-10-15
CURRENT
J2723_202110
This document specifies the procedure to be used for a manufacturer to certify the net power and torque rating of a production engine according to SAE J1349 (Rev. 8/04) or the gross engine power of a production engine according to SAE J1995. Manufacturers who advertise their engine power and torque ratings as certified to SAE J1349 or SAE J1995 shall follow this procedure. Certification of engine power and torque to SAE J1349 or SAE J1995 is voluntary; however, this power certification process is mandatory for those advertising power ratings as “Certified to SAE J1349” or “Certified to SAE J1995.” In the event that an engine made by one manufacturer is sold to a consumer in a vehicle produced by a second manufacturer, engine certification may be completed by either manufacturer or by both manufacturers working together.
Standard

Engine Power Test Code - Engine Power and Torque Certification
2023-02-06
WIP
J2723
This document specifies the procedure to be used for a manufacturer to certify the net power and torque rating of a production engine according to SAE J1349 (Rev. 8/04) or the gross engine power of a production engine according to SAE J1995. Manufacturers who advertise their engine power and torque ratings as Certified to SAE J1349 or SAE J1995 shall follow this procedure. Certification of engine power and torque to SAE J1349 or SAE J1995 is voluntary, however, this power certification process is mandatory for those advertising power ratings as “Certified to SAE J1349” or “Certified to SAE J1995.” In the event that an engine made by one manufacturer is sold to a consumer in a vehicle produced by a second manufacturer, engine certification may be completed by either manufacturer or by both manufacturers working together.
Standard

Engine Power Test Code - Spark Ignition and Compression Ignition - As Installed Net Power Rating
2021-07-13
WIP
J1349
This standard is intended to provide a method to obtain repeatable measurements that accurately reflect true engine performance in customer service. Whenever there is an opportunity for interpretation of the standard, a good faith effort shall be made to obtain the engine’s typical in-service performance and avoid finding the best possible performance under the best possible conditions. Intentional biasing of engine component or assembly tolerances to optimize performance for this test is prohibited.
Standard

Engine Power Test Code - Spark Ignition and Compression Ignition - As Installed Net Power Rating
2011-09-20
CURRENT
J1349_201109
This standard is intended to provide a method to obtain repeatable measurements that accurately reflect true engine performance in customer service. Whenever there is an opportunity for interpretation of the standard, a good faith effort shall be made to obtain the engine’s typical in-service performance and avoid finding the best possible performance under the best possible conditions. Intentional biasing of engine component or assembly tolerances to optimize performance for this test is prohibited.
Standard

Engine Power Test Code - Spark Ignition and Compression Ignition - Gross Power and Torque Rating
2021-11-11
WIP
J1995
This SAE Standard has been adopted to provide a basis for dynamometer determination of gross engine power and torque under reference conditions. It is intended for use primarily by engine manufacturers who supply engines for installation by others in applications where the engine manufacturer may not control the induction and exhaust system design or the speed at which the engine is run.
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