When comparing engine specs for nearly any combustion engine automobile, we see a number of variations available with differing outputs of horsepower and torque. We often have a choice of gasoline or ...

As you may know, an engine's compression ratio is directly linked to its combustion efficiency. All else being equal, higher-compression engines tend to make more power while offering better fuel ...

GM's new patent reveals a three-crankshaft engine system for trucks that varies compression ratio and extends the expansion ...

GM says in the patent that the compression ratio can change from between 7:1 and 11:1, though that top figure isn't ...

Increasing an engine’s compression ratio is a proven way of unlocking extra horsepower, but there’s a point of diminishing returns. The team at Garage 54, the Russian mechanics who built a V16 using ...

GM just filed a patent that tackles one of the oldest problems in truck engines: making more power without burning more gas to get it. The filing, published on the USPTO website this week, describes a ...

Most engines generate power from an internal combustion system. On the basic level, these engines work by compressing fuel and air into a tight space. Within the cylinders of an engine, pistons pump ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

GM has filed a patent application for a six-cylinder engine with variable compression, showing a design that links the ...

Bureau Veritas grants Type Approval to WinGD's variable compression ratio technology, designed to improve marine engine ...

Joel was previously an editor at Autoblog for nearly a decade, covering cars from humble economy hatchbacks to high-end sports cars. He has extensive driving experience with plenty of track time, and ...