One small hole drilled in the top of the air cleaner is all that's required to mount the injection nozzle. Water sprays directly into the primary bores of the carb. In the past several years since the ...

2.Reduced engine rpm (without attending losses in net torque) tend to improve overall fuel economy and driveability. 3.Treat multi-cylinder engines as a combination of several single-cylinder engines, ...

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 ...