ORIGINAL: DarZeelon
...If 'chump' is getting 40,000; 'champ' would be doing 44,208 RPM, by your numbers...
And Brian,
Using this 'identical prop load' example; this 10.5% increase in RPM, would still require
over 22% increase in the torque, from an engine which is already close to being optimized, right out-of-the-box...
I refuse to believe this is possible, without a 'different' supercharging apparatus.