Car crafters all like to talk about engines. And in our world where there's no replacement for displacement, dropping the "stroker" term into your engine conversation is bound to garner attention.

This paper presents the analysis and design of a variable-compression-ratio and displacement engine concept - the Alvar Cycle using a four-stroke engine-performance simulation. The Alvar-Cycle engine ...

We may earn a commission from links on this page. Motorheads have been dreaming about an electromagnetic valve train for years now. A virtual cam profile, in concert with the elimination of floating ...