ORIGINAL: pe reivers
3W has 1.31 prop factor, and Mejzlik has 1.18.
Using the 24x10 Mejzlik should bring you at least 7700 rpm if the KS tuned pipe is any good, and tuned for best hp for the 24x10
7700 ???
We did some tests this weekend and we were happy with the results, but it is not as good as 7700. Header is 34 cm long (13.385 in). There is a huge amount of power. Mejzlik 24x10 at 6.850 rpm. Menz S 24x10 at 6.690 rpm. This engine seems to be a beast !!!