There are many relatively simple ways to add horsepower to your car's engine, such as installing a better intake, ...

The owner of the first car upgrades their power with a positive-displacement Roots-type ... means into the system. Because it directly pulls on the engine, a supercharger is technically ...

The Roots Blower was patented in 1860 and the original ... and the rotation of the two impellers increases the pressure within the system, forcing the fluid out the other end.