Twin turbochargers have their pros and cons, and two main setups try to maximize the pros. Here's the difference between ...

Understanding what twin turbos actually do, how they are configured, and where their efficiency gains are won or lost is ...

Remember the Hydracharger? Those who've wasted time reading this column for the last four years will remember the promising turbo/supercharger hybrid I wrote about in the April 1999 issue. The curious ...

Automakers have started using electric compressors to help eliminate lag in their turbocharged engines. The first with the technology was Audi, which introduced it in its SQ7 TDI high-performance ...

We were looking for a cheap way to make more power on Project Rust Bucket, so we started looking into compressor upgrades. A compressor upgrade is basically where the front half of the turbocharger is ...

For a few years now, Formula 1 engines have used electric turbochargers, with an electric motor attached to the shaft that connects the compressor and turbine wheels. The effect is virtually no turbo ...

There was a time when the V8 reigned supreme. When “There’s no replacement for displacement!” was affixed to every chromed-out muscle car’s bumper. As Bob Dylan once said, though, “The times, they are ...

We've carefully disassembled this Garrett TP-38 turbo, making sure to clean all the parts before reassembly. Turbocharger journal bearings are made from a soft material, the surfaces are the first to ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...