Li Zimu looked at the white Lamborghini that was about a hundred meters behind him, stepped on the accelerator and accelerated to the front.

This distance, ok, acceptable.

Wang Ziwen looked at the red taillights of the Audi in front of him and thought to himself, he had just come out of the corner, and the number on the speedometer was changing rapidly upwards at eighty-nine.

In a corner, he was thrown almost a hundred meters horizontally, and for this result, he had no other way than to hate his own level.

Holding the steering wheel tightly, Wang Ziwen stepped on the accelerator and skillfully geared to accelerate, he knew that the current speed of Audi should be about one hundred and sixty, and if he wanted to lift his car to the same speed as him, it would take a little more than two seconds at the earliest.

More than two seconds were enough for Li Zimu to throw him another hundred meters.

"Audi crossed the last corner and headed for the kilometer line!"

"One hundred and sixty-one speeds!"

The announcer said excitedly that there should not be much suspense in this game, and tonight's Audi will surely be famous throughout Luoyang.

Li Zimu lit another cigarette.

The slope at the foot of the hill was gentle, and the road was wider, and he could even increase his speed in corners to 16 per hour.

Alas......

Sighing softly, he has rarely driven fast these days, which has led to a slight drop in his level, which he doesn't want to see.

Looks like you have to run a little more......

However, after this competition, some parts of Audi should almost be replaced, and it is estimated that the tires have been worn out of shape, right?

In that corner just now, he could clearly feel that the grip of the tires was not as strong as before.

This racing car is really not a sport that ordinary people play, how many kilometers have you run, and you have to change a set of tires, these are all white flowers......

"The white Lamborghini is out of the corner!"

There was a screeching sound of brakes and tires rubbing against the ground behind him, and Li Zimu glanced in the rearview mirror.

The man was impatient.

This is the conclusion that Li Zimu came to that this corner, there is no need to throw such a large angle at all, this is not a problem with Lamborghini's operation, but the reason for the reduced grip of the tires.

But in the final analysis, it was Wang Ziwen's problem, he didn't take this into account, and he still used the previous operation to flick the tail, maybe he didn't feel it himself, right?

Wang Ziwen looked at the black Audi in front of him, which was already some distance away from him, and hurriedly straightened the body that was almost out of control.

He was really too anxious, because he was afraid that he wouldn't be able to catch up with the Audi in front, so he was in a hurry, didn't think about it so much, and still shook his tail as usual, causing him to almost shake his head.

After straightening the front of the car, Wang Ziwen immediately stepped on the accelerator to accelerate, and at the same time raised the central armrest behind the central control without hesitation, which contained a very small metal bottle.

The style of this metal bottle is similar to the inner liner of a thermos flask, but it is much smaller and looks less exquisite, with a black rubber hollow tube at the front of the bottle, a small air valve twisting design at the mouth of the bottle, and a stopwatch-like thing on it, and the red pointer on the rightmost scale.

There were a lot of English letters on the metal bottle, and the three largest of them were.

nos。

Quickly unscrewing the gas valve on the metal bottle, Wang Ziwen continued to step on the accelerator deeply, and pressed a red button on the central control to adjust the air conditioner.

In an instant, the car slammed forward like a beast out of its cage, and a violent push sensation passed from the seat, and the engine under the seat let out a fierce roar.

"Huh?"

Li Zimu held the steering wheel with one hand, put out the cigarette butt into the ashtray next to him, looked at the white Lamborghini in the rearview mirror, and frowned slightly, this voice was a little wrong.

"Nitrogen acceleration?"

The sound of the usual Lamborghini Hura's V-shaped naturally aspirated engine is not like this, even if there are four intake valves per cylinder, the roar of acceleration is definitely not like this.

The only explanation can only be that the oxygen content and density of the intake air of this cylinder are much larger than usual, which is why it makes such a sound.

This sound is all too familiar, it is the effect of the high-speed rotation of the engine produced by the use of nitrogen accelerator bottles, similar to the sound of a rocket launching.

As Li Zimu said, Wang Ziwen's last weapon is this nitrogen accelerator bottle.

At this time, he held the steering wheel tightly with both hands, staring at the Audi RS7 in front of him, with a madness in his eyes.

The distance between the two cars is closing at a clear speed visible to the naked eye.

Listening to this familiar voice that he had not seen for a long time, Li Zimu smiled, but the movements of his hands and feet did not stop at all, stepped on the accelerator deeply, and hung the gear from sixth to seventh gear.

Nitrogen acceleration system, I haven't seen it in a long time......

In the United States, no, it can be said that in places other than China, this thing is not uncommon.

The NOS nitrogen acceleration system is a product developed by the American company Holley, which first appeared in the Luftwaffe as a technology used in World War II, and was gradually used in civilian vehicles.

Ordinary people who play cars know this thing, but Huaxia has really seen it, but it is a few.

Because Huaxia has a lot of monitoring of racing cars, individuals basically can't import things like this from formal channels, and they can only take some other methods.

The big racing clubs, there are still ways to get this stuff in.

The nitrogen acceleration system does not mean that nitrogen is used to fill the combustion chamber of the automobile cylinder, because nitrogen itself is not a combustible gas, and the most gases in the air are nitrogen.

The gas in this nitrogen cylinder is actually a nitrous oxide compressed gas, which is commonly known as laughing gas, which will anesthetize human nerves after inhalation.

This gas will decompose oxygen and nitrogen after heating, which can provide more oxygen to the cylinder to achieve a better oil-gas mixing ratio and make the fuel more efficient, so that nitrogen can cool the engine and increase the integrity of fuel combustion.

This thing instantly increases the speed of the car, although it is the same principle as turbocharging, but it is more violent than turbocharging.

Both are designed to increase the oxygen content in the mixture, improve the combustion efficiency and thus increase the power output, the difference is that NOS directly uses oxides, while pressurization increases the density of the air through external force.

To give a specific example, the 1.3-liter 8A engine of an ordinary car, after being professionally modified and installed with the NOS system, the original 100-meter acceleration takes six seconds, then now it only takes 3.5 seconds, and the original maximum speed is 222 per hour, so now you can break through this value and reach a speed of 250 or faster.

That's the power of nitrogen acceleration.