Surely the connecting rod only needs sufficient mass to achieve its goal of acting as a strut and a tie as extra mass needs energy to speed it up and to slow it down. Inertia and lateral loading whether at high or low speeds is still an important consideration. As a light assembly running at...
I think you may be referring to the Aspin and Cross designs both of which have been tested extensively by various manufacturers, prewar,Austin converted some 4 and 6 cylinder engines to work with these types of rotary valve but the benefits were to costly. From an engineering standpoint though...
I would be very wary of using these connecting rods in another engine even if they are from a low speed low power engine aluminium is notorious for suffering internal fatigue and whilst appearing to be ok externally will fail spectacularly in use - usually at higher speed/load combination.
You...