"Engine spin" refers to the rotation or movement of an engine's components, such as the crankshaft, pistons, and valves, when the engine is running. Full definition
But now, it comes with a darker side: black engine spin. (bentleymotors.com)
The Lean Power processor monitors the rotation of the flywheel, which in car engines spins at anything between 600 and 6000 revolutions per minute depending on the gear and speed. (newscientist.com)
Even though this Miata's six - speed manual transmission has a fairly tall ratio in sixth gear for highway cruising, the rear axle's final - drive ratio is fairly short to enhance acceleration, so the Miata's 2.0 - liter inline - 4 engine spins above 3000 rpm at ordinary cruising speed and close to 4000 rpm if you're brave with speed limits. (automobilemag.com)