Practical techniques for hand-propping and other manual engine starts when an electric starter isn't available. The post ...

At least 150hp of a Pro Stock engine is due to the use of ultra high compression ratios (CR) of 16:1--or more. 110 octane race fuels make this possible, but don't be fooled into thinking that the use ...

Just days ago, Porsche patented a revolutionary six-stroke engine that combines the power advantages of a two-stroke engine ...

Mazda’s new SkyActiv-X engine will go against every convention you thought you understood about gasoline engines. It’s supercharged, but for efficiency purposes, not to increase power. It has a ...