Harley-Davidson's Milwaukee-Eight engine has two spark plugs per cylinder. It's all about boosting performance, efficiency, and emissions, while reducing heat.

A 200,000-mile engine meets its end due to either a rare defect or some major user error.

RealTruck.com reports on the latest truck accessories, featuring new products to enhance vehicle performance and style.

The real secret of SpaceX is an operating system built around Time Over Money. It is the governing law with extreme loop ...

Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.

Whether they were taken for granted, not deemed exciting, or were simply forgotten over the course of time, these are five ...

As a purely mechanical device, the carburetor occasionally goes out of tune, usually because the adjustment screw gets loose ...

Tap to know why the new Speed 100 petrol from Bharat Petroleum is good for performance, mileage, and longevity of your car and its engine.

The 45-degree V-twin configuration of a Harley-Davidson engine and when each piston fires are part of why the iconic American motorcycles sound the way they do.

The Better Half VW conversion produces approximately 30 horsepower at 3400 rpm with standard 92mm cylinders, though builders can increase power to 37 horsepower or more by using larger bore cylinders.