fossmarkluni

I will check if I have a smaller prop to do the first break-in runs. From what I have read others suggested that it was better to run the ASP 400 with a bit larger prop because peak torque came quite early in the rpm range and to be honest I feel safer with lower RPMs on this beast as the tolerances are quite wide in the valve train and other places. (I do realize that the combustion pressure goes up when I load it with a bigger prob, but the load on the valve train; cams, valves, push rods etc. will inevitably be higher with higher RPM's)

I did not measure the RPM on my first run but I would guess anything from 5500 to 7000 during the "leaner" runs. Next time I will shoot a video and measure the peak and idle RPM.