Wide open throttle

Wide open throttle

Wide open throttle (WOT) refers to an internal combustion engine's maximum intake of air and fuel that occurs when the throttle plates inside the carburetor or throttle body are "wide open", providing the least resistance to the incoming air. In the case of an automobile, WOT is when the accelerator is depressed fully, sometimes referred to as "flooring it".

At WFOT, manifold vacuum decreases. Ideally, to preserve driveability and fuel economy, manifold vacuum should not fall any lower than 1" (mercury).


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  • wide open throttle — (WOT) A term describing full throttle …   Dictionary of automotive terms

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  • wide open — 1. mod. as fast as possible; at full throttle. □ I was driving along wide open when I became aware of a flashing red light. □ It was wide open and still wouldn’t do better than eighty. 2. mod. vice ridden. □ This town is wide open! …   Dictionary of American slang and colloquial expressions

  • wide open — Synonyms and related words: absolute, all out, at full blast, at full drive, at full speed, at full throttle, bald, bare, clear, cleared, deltoid, disclosed, exposed, fan shape, fan shaped, fanlike, fanned, fanning, flabelliform, flared, flaring …   Moby Thesaurus

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  • throttle position sensor — (TPS) A potentiometric fuel injection switch with two contacts for the two end positions of the throttle valve, which sends a signal to the electronic control unit when the throttle valve is closed (idle) or wide open (full load). The sensor… …   Dictionary of automotive terms

  • full throttle — The fully open position of the throttle. Also called wide open throttle …   Dictionary of automotive terms

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