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“Dear students, because the track is special at this time, each of you has an hour to transform your car, hurry up and transform into a 4WD that can travel perfectly underwater!” 4WD Fighter Shouted, this made all the players sighed in relief.

This time they were given an hour, and it was okay. They can think carefully about how to deal with this harsh track.

First of all, special waterproof tires are necessary, because only waterproof tires can drive stably in the water.

But this is not the most critical issue. The most critical issue is how to protect 4WD from leakage.

Since the 4WD rushes into the water, the water ingress is inevitable. Once the water enters, it will have a fatal impact on the motor and the battery. Maybe within a few seconds, the 4WD that enters the water will be completely useless.

“What should I do?” All the players were lost in thought.

Among them, the players who bought the whitebait engine showed a bright smile, because the whitebait engine is a special engine specially manufactured for underwater driving, which has a strong waterproof effect. According to the engine manual, the whitebait engine The engine can stay in the water for more than an hour.

Ever since, the players who prepared the silverfish engine smiled brilliantly, and those who were not prepared were ashamed.

Of course, the engine is not enough, the battery is also waterproof, and the current will not be affected by water.

“I don’t know if there are too many impurities in this water. If there are too many impurities, it will be troublesome!” Water itself is not a conductor, but if the water contains impurities, it would be bad!

Looking at the pool in front of him, Liu Nian was lost in thought. The conductivity of water is determined by the amount of impurities in the water. If there are many impurities in the water, such as sewage and so on, 4WD is prone to short circuits. Problem.

In fact, Jia Yapeng has not been abnormally using sewage to compete. This is pure water specially obtained by Jia Yapeng. Although not at all reaches the point where pure water is used for experiments, there are not many impurities in it, at most. It has a little bit of weak conductivity. The low current of 4WD will not have a big impact.

This underwater track actually looks scary. It is not that scary. Even without a modified 4WD, it can run underwater for a while, but it can waterproof the motor and battery, which is naturally better. of.

Naturally, Liu Nian couldn’t afford the special silverfish engine produced by Great-Thousand. At the same time, a huge problem with Liu Nian’s car itself also emerged.

Because Liu Nian’s modified engines do not have an engine casing, they can only rely on the engine compartment to protect the engine coils.

But this is not really completely enclosed. After all, the power of the engine room still needs to be output through gears and shafts, so the engine room must have a hole for the shaft to enter. If the car enters the water, then water will enter through the hole. Engine room, that’s it.

Time is pressing and materials are lacking. Little Brat not at all has modified the engine or the car’s ground, but if it is not completely modified, the water ingress problem cannot be solved. This is a huge problem.

“Little Brat, what are you going to do?” Jia Yapeng sitting in the VIP room, looking at Little Brat scratching his head and cheeks, showed a curious expression, he wanted to see this genius Little Brat , Is there a way to deal with the waterproof problem.

Time passed by one minute and one second, and an hour soon arrived. Many children did not think of a good way at this time, and could only barely do some waterproof work, and then brace oneself took the 4WD to the track. starting point.

“Go!” The 4WD fighter gave an order, and all the 4WDs were placed on the track at the same time, and then they galloped up.

Unsurprisingly, the top few in the semi-finals are ranked in the strongest side, but the distance from the car behind is not too big. After all, everyone’s parts are similar, and the difference is just a few minor issues.

But soon, one car fell to the end with a very obvious gap. This car is Liu Nian’s Evangelion.

At this time, the track obviously hasn’t reached the bottom of the water, but Liu Nian’s Evangelion’s speed has become quite slow. It is only about 23 speeds for other cars. Naturally, at first was left to the end. When many cars have already entered At the second corner, his Evangelion had not entered the first corner.

“Hey, there seems to be a problem with our Evangelion. What happened? Did it damage the function of the car during the renovation process just now?” The 4WD fighter in charge of the commentary curiously asked with the microphone, and the other audience We are also very curious, but don’t understand what happened.

“Strange, this Little Brat’s car seems to have become very heavy, especially the rear part of the car, the weight looks very heavy!” As a professional, Jia Yapeng, seeing the driving situation of Evangelion in the broadcast screen, is vague Seeing a clue, Jia Yapeng doesn’t know what the specific reasons are.

After about two minutes or so, the cars that ran in the front have all entered the underwater track. At this time, Evangelion just ran 23 miles and was pulled apart by all the children for nearly 30 seconds. Under normal circumstances, this is a gap that can never be caught up, and Liu Nian can already admit defeat.

However, Liu Nian’s face did not have too much anxious expression. Instead, he was full of confidence. This made many viewers curious about this child. At the same time, the first batch of cars that entered the water first began to appear. Kind of problem.

The first problem is the speed of the car. The resistance of water is much greater than the resistance of air. So the car’s original speed of 30 meters per second, after entering the water, dropped to about 10 meters per second. This is a child. The speed that you can catch up when you run.

In some racing cars, the speed dropped directly to about 7 meters per second after entering the water, which made all the children become anxious.

From here, the car continued to be divided into 2 echelons. All the cars that could speed up to more than 10 meters per second rushed to the forefront, and the rest of the cars gradually fell behind.

Some of the cars got slower and slower, and finally stopped slowly.

These racing owners quickly rushed into the water, picked up their baby racing cars, and replaced them with 2 new batteries, but they were of no use. This is because their engine has been flooded and completely scrapped. Only by replacing the engine can the power be restored.

But it takes a lot of time to replace the engine, and they lost.

Just as these children were desperate, a silhouette slowly chased up. At the same time, his Evangelion, like a blue submarine in the water, swimming leisurely in the water, directly surpassing these bad luck The child, chased to the second echelon position.

“Isn’t this car lagging behind? Why did it suddenly become so fast!!” Seeing Evangelion just chasing up, the children who saw this scene were shocked by 10000 points and muttered to themselves.

But these children are wrong. Evangelion is not getting faster, he just slows down much less than other cars after entering the water.


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