Start with a blacksmith shop.

Two or three people spent three days at the auto show. Except for the first day, when they were seriously looking at the cars,

For the remaining two days, Li Zhenhua also joined the ranks of those looking at 'cars'.

And they took a lot of photos, and also got together...

They were discussing things like whether the headlights were round or not, whether the rear of the car was sexy, how much carbon buildup was in the exhaust pipe, and whether the fuel injectors were working properly...

The group stayed until the end of the auto show, and of course, they did gain something along the way.

For example, Li Zhenhua obtained all the engines he wanted at the auto show, and he also collected many advanced car models.

Of course, this was his first day's gains. As for his second day's gains, I won't go into the details. Anyway, none of the three people who went to the auto show returned to Guo Shugui's villa that day, and even Li Zhenhua slept in a hotel.

When I woke up the next day, my back was really sore, and of course, my wallet had also gotten a little thinner.

Three days after the auto show ended, the three of them drove Guo Shugui's trousers towards the small county town.

Why the third day? Because their itinerary these past few days has been too hectic, so they took a day off.

On the way back, Liu Xiaodong, who was originally very brave, now had a bitter face.

With a wry smile, he said to Li Zhenhua, "Brother Hua, I need a favor. If Wang Mei asks me about it, you'd better keep quiet about it!"

"Damn! My sister-in-law found out? That damned sixth sense of women!"

Guo Shugui, who was driving at the moment, was looking back in the rearview mirror with a gloating expression.

"Sigh, I don't know what's wrong with Wang Mei, but I have a feeling she's discovered something!"

Looking at Liu Xiaodong's wry smile, Li Zhenhua also felt that this matter was indeed quite troublesome.

"Alright, I'll cover for you then. Anyway, he hasn't found anything wrong with you."

Otherwise, you can just wait until we get home and then make a trip to Wang Mei's place.

You're pathetic, I feel sorry for your poor kidneys!

The car sped towards the small county town, and of the three people in the car, two were in good spirits, while the remaining one was somewhat worried.

The car drove back to the town of the county, dropped Li Zhenhua off at the blacksmith's shop, and then the two left without lingering there.

Liu Xiaodong left the blacksmith shop, told his family, and drove to the university where Wang Mei was pursuing her postgraduate studies.

Anyway, Liu Xiaodong was almost exhausted that night, but there were no other serious consequences.

Guo Shugui returned to the company he hadn't managed for a long time. This time, he had a long talk with his father.

He also knew that he couldn't continue playing around like this; some things needed to be addressed.

Li Zhenhua stood once again at the entrance of Old Li's blacksmith shop, looked up at his home, opened the door, and returned to his home after nearly a week's absence.

After a quick tidy-up of the shop and the opening of the roller shutter, the blacksmith shop reopened for business.

Time flies, and a week has passed since I returned from Beiping.

Just yesterday, Li Zhenhua received the notification that he had passed the preliminary round of the knife-forging competition. The notification also included specific information such as the competition date and location.

This also relieved him of one more thing that had been on his mind after receiving the news, giving him nearly three months of free time, which allowed him to focus his attention on his future plans.

During the week he returned, he didn't stay idle. He spent his time in the blacksmith shop forging iron, making farm tools, and helping his neighbors repair farm tools. Of course, he also didn't give up his idea of ​​building motorcycles.

Everything in this work starts with the engine, the heart of the motorcycle.

Li Zhenhua has collected all types of engines, and he has also generated all the blueprints for them bit by bit.

With the help of his analytical eye, he also determined the type of engine to be used in this motorcycle.

A radial engine, yes, that's exactly what he chose.

Motorcycle engines have become quite mature, and it's fair to say that the engines used in mass-produced motorcycles today are the most suitable for motorcycles.

However, this did not mean that changes were impossible. After much deliberation, he discovered that radial and rotary engines were also well-suited for use in motorcycles.

Why choose a new type of engine? Of course, it's because the lifespan of the rotary engine is too short, and the metal materials currently available to him are simply insufficient for the rotary engine.

Therefore, the radial engine was his first choice. This type of engine is very reliable and does not require a gearbox.

Li Zhenhua had already decided during this time that the clutch on the motorcycle would still be retained.

This is used to cut off power output, preventing the motorcycle from being in power output mode all the time.

As for the gears on the motorcycle, you could say there are none, or you could say there are; in any case, there's only one gear on the whole motorcycle, and the speed of the motorcycle is entirely controlled by the throttle on the right hand.

The throttle has also been redesigned with exposed gears on the handlebars. This design was modified to give the vehicle cruise control functionality.

Radial engines are actually divided into two subtypes: rotary engines and fixed-cylinder engines.

This time, he used a fixed-cylinder engine design. He had thought about it carefully; in a rotary engine, the cylinder block is always rotating.

When driving on roads with poor conditions, the engine is bound to suffer damage.

For safety reasons, it's best to protect the engine, so the rotary engine option was ruled out.

This time, his manufacturing plan includes two options: a five-cylinder engine and a seven-cylinder engine, representing two displacement options for the motorcycle.

A five-cylinder engine, with each cylinder having a displacement of 90cc, has a combined displacement of 450cc.

As for the seven-cylinder version, each cylinder has 10cc more displacement than the five-cylinder engine, and the total displacement of the seven-cylinder engine is 700cc.

The two engines can provide 71 horsepower and 111 horsepower respectively, which can be described as very powerful.

As for how the two engines were developed, it was naturally through trial and error, aided by three powerful tools: the Virtual Lab, the Eye of Analysis, and the Dexterity of Hands.

The whole process was quite arduous. The engine, which was prototyped in the laboratory, would have been too large to fit on two football fields if laid out flat.

If this research and development process were to be applied to real-world applications, the research and development costs would likely exceed 100 million, or even 1 billion.

Don't forget the R&D costs of the three-cylinder Junqi, which reportedly amounted to 190 billion yuan. Although that money was wasted, a simple trick to increase idle speed by lifting the cover is all it takes to make the engine stable.

Under his design, the motorcycle's appearance is not much different from that of a traditional motorcycle.

The only difference is that the engine under the fuel tank is larger than a regular engine.

Instead of choosing a compact racing car or street car, they opted for a cruiser, which is relatively large.

From the engine to the entire vehicle, the design of the whole car can be described as extremely imposing.