I understand that a lighter reciprocating mass will rev faster, but it doesn't mean it will under load.
Any weed wacker can "rev faster" than my engine. As did the makes of the skirmishes I've had on the freeway, from Ferraris to Lamborghinis to Porsches, et al.
I can't make sense of it. Their engines rev faster than mine, but they end up in my rear view mirror in a matter of a couple seconds.
