Ignition timing Ignition timing In a spark ignition internal combustion engine, Ignition timing refers to the timing, relative to the current piston position and crankshaft angle, of the release of a spark in the combustion chamber near the end of the compression stroke. The need for advancing (or retarding) the timing of the spark is because fuel does not completely burn the instant the spark fires, the combustion gases take a period of time to expand and the angular or rotational speed of the engine can lengthen or shorten the time frame in which the burning and expansion should occur. In a
The Archaic Course The Archaic Course The Archaic Course is the third studio album by Norwegian metal band Borknagar. It is the first album to feature Simen "ICS Vortex" Hestnæs on vocals following the departure of Kristoffer "Garm" Rygg (who, according to Øystein Brun, "didn't want to scream anymore"), and the first with guitarist Jens F. Ryland. The album also features contributions from Enslaved guitarist Ivar Bjørnson, although he was not credited as part of the band in the album's liner notes. This is also the last album to feature drummer and founding member Erik "Grim" Brødreskift, who died of a deliberate drug