iv) S.A.E Rating
For the purposes of standardisation, the SAE ‘defines’ the BHP of an engine as per (ii) above but when run without any ‘Auxiliaries’ such as the Radiator Fan, Air Cleaner and the Dynamo/Alternator. However, the Fuel, Lube oil and Jacket Cooling Water Circulation Pumps stand included.
The BHP so measured by a Dynamometer stands further corrected to ‘Normal Temperature, Pressure and Humidity conditions (NTP) and the value so obtained is known as the SAE-BHP Rating.
v) DIN Rating
This as defined in the German Standard and is measured/corrected to NTP conditions BUT includes all the Engine Auxiliaries otherwise excluded in the SAE definition.
So technically SAE will be higher than DIN.
SAE has nothing to do with it really! - lol