RE: Comparing engine performance?
Brian,
I am not convinced!
Horsepower is not just a measurement, but a calculation of a force applied over a distance, per unit of time. Work output.
Going from 2 HP @ 40,000 RPM to 2.7 HP, requires any combination that would increase the torque and the RPM, by a combined 35%.
Since torque cannot be increased by very much (VE is maximized, as is pipe boost), it must mostly come from substantially increased RPM.
...And this is a problem, as RPM is a great strain on the moving parts.
I don't believe these claims and neither should you, Brian.
Even if torque graphs are shown, demonstrating an increase of 35% in torque from the same displacement, they are bogus.
There is no way, you could get better torque than from the most efficient pipe, without positive displacement supercharging.