It seems that all the marketing of the 1990s has paid off in an unexpected way for the automotive aftermarket: everyone wants a turbo. Turbos make big power without the headaches of belt-driven ...

Dutch boutique sports car builder Donkervoort has teased details about some of the hardware used by its upcoming P24 RS model, with information on the innovative turbocharger and intercooler the car ...

A supercharger—such as a turbo—compresses air. Compressing air heats it. Heating air makes it expand. This is a Catch 22 inherent in supercharging. So rather than thinking of quantities of air in ...

We haven't got as far as we had previously promised. Project Z still hasn't made its date with the dyno, but there's a good reason. Building a 350Z to properly support the power and meet the lofty ...

I was told by the workshop that my car has an intercooler and it is busted. What does this mean? Intercoolers are fitted to cars with superchargers or turbochargers. On these types of engines, the ...

Back in the last episode, we gained 50 rwhp by swapping to high-flow ported heads (Jose Motor Sports) and a hydraulic roller cam (Comp Cams). Our power gains were quite impressive considering there ...

Our government exempts imported vehicles older than 25 years from having to meet emissions, safety, and other regulations. A recent drive of a first-generation Volkswagen GTI got us thinking about ...

If Porsche’s turbocharged 911 Carrera and 911 Carrera S offend your natural-aspiration sensibilities, we have bad news: The brand’s mid-engine sports cars, the 718 Boxster and the upcoming 718 Cayman, ...