SAE J 245:1971-04-01

This code specifies the conditions of testing and engine configuration which must be satisfied in order to qualify for the designation “SAE net” horsepower or “SAE gross” horsepower or in any way to indicate power capability conforming to SAE standards or requirements. It is applicable to all types of spark ignition engines except turbo-charged spark ignition engines for which definitive power correction data are lacking. This code is not intended as a complete laboratory test manual or for derating engines for altitude.

This code is composed of the following sections: