So what do you do when you've built your motor, strapped on the biggest turbo you can tolerate and basically tuned your forced-induction car to the teeth-but you still want more power? More boost ...

Hello David, a water-methanol injection (WMI) kit is designed for vehicles with forced induction systems, such as turbochargers or superchargers. This system injects a mixture of water and methanol ...

There are many ways to add power to your vehicle. It ranges from the cost-efficient modifications you can make to the more expensive engine and supercharging upgrades your mechanic will have to ...

It's a rare thing when a magazine tests the exact same product twice, but that's exactly what we're doing here. Back in our Aug. '11 issue ["Hooked On Meth"], we installed and dyno tested a Snow ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...

When it comes to pump-gas performance, the name of the game is usually compromise. Unfortunately for turbo LS (or other) enthusiasts, real street (and some track) cars walk that fine line between ...

While Oldsmobile, Saab, and even BMW have dabbled in water-injection systems for production cars over the years, Porsche has been quietly filing patents that indicate a strong interest in refining ...