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Another reason to change the electronic control unit map is if there are engine, intake, or exhaust modifications to the car. These "bolt-on" modifications alter the way that the engine flows, often causing the air to fuel ratio to change. Without re-mapping the fuel tables, some of the performance gains from the modifications may not be realized.
Engine tuning is the adjustment or modification of the internal combustion engine or Engine Control Unit (ECU) to yield optimal performance and increase the engine's power output, economy, or durability. These goals may be mutually exclusive; an engine may be de-tuned with respect to output power in exchange for better economy or longer engine ...
The new engine is initially being offered in the Range Rover Sport in two power outputs, 360 PS (265 kW; 355 hp) and 400 PS (294 kW; 395 hp). Both are considered to be mild hybrid electric vehicles. The 48 volt electrical architecture JLR announced with this new engine is similar to Mercedes-Benz's "EQ Boost" and Audi's 48 V systems available ...
Based on the PSA DW12 engine [citation needed] and with a capacity of 2.2 L (2,179 cc), this engine was released in 2000 by PSA in the Peugeot 406, 607 and Citroen C5. In April 2008 Ford fitted this engine to the Mk IV Mondeo, soon following in the Ford S-Max and Ford Galaxy. The engine was re-engineered and built by PSA in Tremery.
Remapping may refer to: Tuning an engine for better performance or fuel efficiency by remapping the Engine control unit; Redefining keys on a keyboard, for example Gateway_AnyKey#Programming; Sector remapping, the automatic replacement of bad sectors by good ones in a hard disk drive
Mean effective pressure is also useful for initial design calculations; that is, given a torque, standard MEP values can be used to estimate the required engine displacement. However, mean effective pressure does not reflect the actual pressures inside an individual combustion chamber – although the two are certainly related – and serves ...
Volumetric efficiency (VE) in internal combustion engine engineering is defined as the ratio of the equivalent volume of the fresh air drawn into the cylinder during the intake stroke (if the gases were at the reference condition for density) to the volume of the cylinder itself.
To calculate the actual efficiency of an engine requires the energy density of the fuel being used. Different fuels have different energy densities defined by the fuel's heating value. The lower heating value (LHV) is used for internal-combustion-engine-efficiency calculations because the heat at temperatures below 150 °C (300 °F) cannot be ...