Say the number of cylinders is more than enough, but why did you think about it?

I don't know what your car likes to be like. In any case, the car is a downright "Petrol Head." It's estimated that the blood drawn out comes with gasoline. Whether it's the old rough V8 or the German W12 All my food.

To tell the truth, I used to be the main child who had no self-reliance. After watching the American beauty's rear-wheel drive + supercharged V8, the whole person was immersed in the world of YY, but later, with time As the experience progressed, I gradually changed my mind (no money). Turbo is not prepared for the weak, careful is not a panacea, the predecessor and the four-wheel drive is no longer synonymous with the disabled.

For our daily transportation tools, the performance of the vehicle will not be considered first. Comfort and practicality are the original intentions of most people who buy a car. These requirements are also usually linked to the suspension of a car's chassis. And the interior, ergonomics design, the car is the second home this argument is not groundless. However, at the same time as the development of science and technology, people have also been deprived of much fun. The most typical is the cylinder. For example, the original 2.5 V6 5GR-FE of the Crown is now replaced with a 2.0T L4 D-4ST.

To say that Toyota's new engine technology, I can talk endlessly for an hour, especially the contribution made in the fuel economy, it is easy to see that almost every individual detail is directed at efficiency and When the oil goes out, it is also necessary to keep the consumption outside of gasoline as low as possible. Although engineers are racking their brains to weaken the inborn defects of the four-cylinder engine, it is a pity that it cannot be done. The gap between the four-cylinder and six-cylinder machines is still huge, and these are the power gaps that are difficult to supplement.

Although the current four-cylinder turbocharger is already very mature, you can hike a 2.5 V6 just to find one, but the sensory difference can still make you know the number of cylinders. No matter how you tune it, there is only one set of sound waves. Imitation systems can "cheat" your ears. So to this day, Car Says still believes that V6 is the real watershed. Well, after V6 was held up by me, the little friends would like to know the reason there, don't worry, let's slowly say.

First of all, the four workflow partners of the engine should all know that suction, compression, work, and exhaust. The black dot on the left side of this motion picture means that the crankshaft has turned around. At the same time, we look at the cylinder number one on the left and complete a complete cycle. The crankshaft has been turned twice. It is therefore not difficult to infer that after every two revolutions of the crankshaft, all cylinders have completed one cycle. Taking a four-cylinder engine as an example, each revolution of the crankshaft, the engine has two cylinders in the power stroke.

In addition, the small partner who carefully observed the engine tachometer knows that the unit of the rotation speed is calculated by how many revolutions per minute, and the following starts the math problem. Assuming an idle speed of 750 rpm, then 12.5 revolutions per second, the crankshaft of a four-cylinder engine explodes twice per revolution, so at idle, the engine explodes 25 times a second, and if it is a six-cylinder engine, it explodes. 37.5 times, this is the root cause of the smoothness gap. The idling speed of the engine is generally maintained at around 700. With the same number of revolutions, the six-cylinder engine will do more work, so the difference in ride comfort is also obvious.

How does it feel like to realize it? Although the automobile itself is the aesthetics of sports, it can not escape the physical itself, especially the engine, the number of cylinders is inherently qualified, even if the same displacement, the two more cylinders will also be in the low twist and smoothness It's that simple to win.

However, with current technology, such models as the X5 are equipped with a 2.0T turbocharged engine, N52B30's self-priming is excellent, but also replaced, plus the turbo on your expensive models. For a four-cylinder engine, the optimization of the engine mount is already standard, and the optimization and redesign of the crankshaft structure and some components of the four-cylinder engine are still more important. While ensuring the output, it is necessary to maintain an energy as much as possible. Conservation. After doing a good job of balancing the internal engine, the vibration will be much smaller. If you don't experience it with a stabbing attitude, it may be difficult to tell.