1. The engine power
refers to the engine power speed of the engine work.
The work done per unit time is called the power of the engine that the engine.
symbols: P unit is used: w (w)
is not equal to the power of the engine power of the car engine, in mechanical transmission, the power loss will be intermediate. In addition, for security reasons and the thicker heavier body design, it can lead to loss of engine power. Therefore, the car is equipped with a small-displacement engine load ratio of the car does not necessarily slow or poor performance of the engine power.
Of course, the specific power and torque than the bigger the better, indicating ample power reserve, but added if necessary car, while it decreased luxurious configuration value does not indicate more problems.
In the case of the same displacement, of course, is the better power, some depot use of advanced technology, such as the intake stroke control valve, EGR, 5 valve, etc., it is necessary to enhance the power, but , which means an increase of the cost of the engine. Manufacturers optional engine for a vehicle, in fact, is to find a balance between power, economy, emissions and costs, not just more power and higher torque, sometimes in order to cost even sacrificed It has a more powerful engine.
power
big engine, fuel consumption will certainly be high, will increase pollution emissions, for consumers and the environment, the blind pursuit of horsepower or power is one-sided. Some domestic and foreign models have been able to provide a large price range for consumers, in fact, manufacturers do a variety of engines, matching transmissions, power systems and electrical systems before it reaches. But equipped with good engine (power, but not necessarily a large displacement), the price of the car will be significantly increased.