curprev22:1022:10, 12 August 2018 71.85.11.191talk 4,175 bytes+3 →Description: Changed "compression ratio" to "compression pressure". Compression ratio is a fixed number, comparing a cylinder's swept volume to it's unswept volume. Compression pressure will change based on air density (altitude, temperature...), engine rpm, engine temperature, and other factors.undoTags: Mobile editMobile web edit
curprev09:3409:34, 24 March 2011 98.210.208.107talk 3,867 bytes−17 The opening sentence confused me, and I had to read a couple more paragraphs to figure out what was intended. Rewrote that sentence.undo