In this transitional period between the gasoline and electric ages, there's still plenty of room, and plenty of motivation, for last-gasp improvements to the combustion engine – and a Swiss R&D ...

Interpreting date codes, how to de-vein your GM smog pump and how to delete the smog pump on a C4 Q:Over the last several months I have acquired numerous questions regarding smog systems, including ...

The need for variable valve timing was recognised as early as 1924, when Americans patented a valve with a variable opening duration for an internal combustion engine. Alfa Romeo’s Spider 2000 was the ...