Over the roar from a 110-cc, two-cylinder engine, Pinnacle Engines founder James Cleeves (nicknamed Monty), pointed out a window in the block. "You can see the cylinder sleeve moving for the intake ...

Throughout the history of the internal combustion engine there have been a multitude of scientists, inventors and entrepreneurs shouting claims about revolutionary new engine designs promising greater ...

Pinnacle Engines today unveiled plans to commercialize a breakthrough ultra-efficient engine by 2013. The new engine design enables significant reductions in fuel consumption and greenhouse gas ...

That’s right, your prayers have been answered: Someone in Silicon Valley is finally developing an opposed-piston, sleeve-valve, variable-cycle engine for passenger-car use. Yeah, OK, we weren’t ...

A lot of the innovation around next-gen car technology has focused on electric cars and biofuels, but there’s a massive need for technology that can make our current cars more fuel-efficient. On ...

To continue reading this content, please enable JavaScript in your browser settings and refresh this page. Pinnacle Engines, a San Carlos startup that says it can cut ...

Decades of refining today’s automobile engine technology has come to this: We’re investing more and more, but getting less and less in terms of efficiency, performance, and durability. What if we took ...

The typical tradeoff for a greener powertrain is higher cost. Electric vehicles, plug-in hybrids, Prius-type hybrids -- all come at a price premium. But imagine an engine that promised a 30 percent ...

Using an engine design that was largely abandoned after World War II, new engines find fuel savings where big auto companies–weighed down by the inertia of their designs–can’t. Decades of refining ...