Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed to boost fuel economy by adding turbochargers to lots of small engines. The problem is, many of them turned out not to be very efficient. As critics... Elaborate engine: Variable-compression Infiniti yields small efficiency gains
Turbocharging has mostly not lived up to its billing of being the savior of internal-combustion engine technology. Earlier this decade, facing increasing fuel economy requirements, automakers rushed to boost fuel economy by adding turbochargers to lots of small engines. The problem is, many of them turned out not to be very efficient. As critics...