Hi Stephan,

Its great to see some factual data on the perfromance of these engines. I have a query though, in your data showing power is there really such a difference between the YS 170 DZ and the 170 CDi, as this is just an ignition change from glow to spark. The fundamental power of the engine should not change wheras your data shows a difference from example of nearly 1/2 hp at 7200 rpm. Was there some other difference between the test conditions?

Best wishes

Keith