The sidevalve engine was manufactured from the early days of the motor industry right up to the 1960s for cars and is still used in smaller applications. Many of the early engines were sidevalve as the internal combustion engine evolved from steam through gas to oil burners to petrol. Sidevalve engines are also known as L-Heads or flatheads. This latter name was because … [Read more...]
Research Octane Numbers
It is interesting reading about the different types of fuels available across the world and like many people I wanted to find out what Research Octane Numbers are. For example, when filling your car, the bowser will have a selection of numbers such as 91, 95, 98 etc. To make things slightly more difficult, there is also a MON (Motor Octane Number) and a R+M/2 Octane Number … [Read more...]
