The term SDI on Ski-Doo snowmobiles stands for semi-direct injection. This SDI technology was developed as a way to create a two-stroke engine that is more efficient and more powerful.
Ski-Doo developed their SDI technology in part due to the United States Environmental Protection Agency putting stricter standards in place on the emissions from small engines such as those found in snowmobiles. While other snowmobile manufacturers chose to do away with two-stroke engines altogether in favor of less polluting four-stroke engines, Ski-Doo instead chose to develop new technology that would allow two-stroke engines to be much cleaner burning, with the result being semi-direct injection.Learn More
Displacement is what makes boats float. Displacement was discovered by Archimedes, and the Archimedes Principle is also used to describe the theory of displacement.Full Answer >
Measuring a roller chain is a two-step process which involves first determining the pitch size of the chain's roller pins and then calculating its actual length. The most common measurement system used to determine these numbers in the United States is the American National Standards Institute or ANSI.Full Answer >
In terms of Honda motorcycles, "CBR" stands for cross beam racer. The motorcycle series' name derives from the fact that the four-cylinder engine is placed across the motorcycle's frame beams, according to Dan Hancock, a member of Honda's R&D team.Full Answer >
The RMS Titanic weighed 46,328 tons gross with a displacement of 52,310 tons. The ship set out for its first voyage on April 10, 1912. It sank on April 14, 1912 after hitting an iceberg, killing over 1,500 people.Full Answer >