What is another word for low compression?
Pronunciation: [lˈə͡ʊ kəmpɹˈɛʃən] (IPA) 
Low compression is a term used to describe an engine that has a lower than normal compression ratio. The compression ratio is the ratio of the volume of the combustion chamber at the bottom of the piston stroke to the volume at the top of the piston stroke. This ratio is important because it determines the engine's efficiency and power output. If the compression ratio is low, the engine will have less power and may experience issues such as misfiring, loss of acceleration, and poor fuel economy. Some synonyms for low compression are reduced compression, decreased compression, diminished compression, and weak compression. All of these terms reflect the same underlying issue of the engine not producing enough pressure during the combustion process.
