Engine tuning

Vintage engine testing equipment that can test ignition timing, ignition dwell, manifold vacuum and exhaust emissions

'Igniscope' ignition tester, with display tube and outer case missing.

Engine tuning is an adjustment, modification of the internal combustion engine or modification to its control unit, otherwise known as its ECU (Engine Control Unit). It is performed to yield optimal performance, to increase an engine's power output, economy, or durability. These goals may be mutually exclusive, and an engine may be detuned with respect to output (work) in exchange for better economy or longer engine life due to lessened stress on engine components.

单词	Engine development
释义	Engine development 英语百科 Engine tuning Engine tuning is an adjustment, modification of the internal combustion engine or modification to its control unit, otherwise known as its ECU (Engine Control Unit). It is performed to yield optimal performance, to increase an engine's power output, economy, or durability. These goals may be mutually exclusive, and an engine may be detuned with respect to output (work) in exchange for better economy or longer engine life due to lessened stress on engine components.
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Engine development

Engine tuning