Start with a blacksmith shop.

The viewers in the live stream also heard the enormous roar of the engine.

The sound was continuous, unlike the usual sound of horses' hooves.

Wow, that sound is amazing!

[It's very powerful; I like this sound.]

We witnessed the birth of a radial engine.

Is this streamer planning to build an airplane? He's even got a radial engine!

The guy upstairs is definitely new here.

······

The live stream was buzzing, and the atmosphere in the workshop was almost equally electric.

After accelerating slightly, Li Zhenhua calmed down and returned to the computer displaying the data.

Looking at the data displayed above, he analyzed it bit by bit, verifying the data and comparing it with what he had obtained in the virtual laboratory.

After testing it little by little, sometimes I would pull the accelerator all the way up, and sometimes I would release it, letting it run at the lowest idle speed.

A power output graph gradually appeared on the computer screen, and judging from the graph alone, the power output was very stable.

He memorized all the data on the computer and then turned his attention to the engine.

The engine temperature was displayed directly in front of him.

Looking at the temperature of the engine casing, it was only 80 degrees Celsius.

With this temperature setting installed on the vehicle, the outer casing temperature will definitely be lower once it's running.

The analytical eye once again proved its worth, showing very low vibration levels and smooth operation at the lowest idle speed.

Even at maximum throttle, the engine vibration level only increases slightly.

Seeing the data from these experiments, he was so excited that he couldn't calm down at all.

Given the engine's performance, once the actual vehicle is built, the engine vibration may be imperceptible while driving, or only slightly noticeable.

This vibration is much smoother than that of the three-cylinder Junqi, which is said to be able to go into the desert, and you don't even need to open the hood.

After the engine had been running for half an hour, he cut off the power supply to the spark plugs.

When the spark plug stops igniting, the engine stops.

This test drive is now complete; the engine will need to be inspected next.

After checking the engine oil level and disassembling one cylinder to inspect the cylinder wall wear, a series of checks were completed, and it was noon again.

After a morning of test runs, the data shows that the engine in front of them has fully met the designed specifications.

The three of them, who had been working all morning, sat down on the ground around the engine in the middle.

"We've been watching you test it all morning. Tell us, what do you think of the engine?"

Guo Shugui, the guy who broke his leg while driving, finally couldn't help but ask Li Zhenhua the question he cared about most.

He, who was originally resting on the ground, put down his water cup when he heard Guo Shugui's question.

Return to the computer for live streaming and bring the main camera in front of them.

"Friends in the live stream, you all heard what my brother just asked."

You, watching the live stream, must be wondering the same thing!

Now I agree to say something: based on the current testing results, this engine...

It fully met my design specifications: RPM, horsepower, torque, casing temperature, vibration level, and combustion ratio, etc., all were up to standard.

This engine has a displacement of 450cc and can output a maximum of 71.9 horsepower, which is 0.9 horsepower higher than my original design specifications.

Some people may not know what 70 horsepower means, so I'll give you a simple example.

Everyone knows Ricky QQ, right? That car's engine only has 51.7 horsepower.

The one in front of us has more than twenty horsepower than the Koko.

Just imagine, guys, that's some serious power.

He paused here, then turned to look at Guo Shugui.

At this moment, this guy seemed completely unaccustomed to the world, almost leaning over the engine.

"Guoba, don't get so close, you'll burn your face!"

After reminding Guo Shugui, he turned his head back again.

"Please, everyone, don't do this! You could really be disfigured if you're not careful!"

Next, we will start the engine and set it aside to conduct the longest possible operating time test.

We will be adding a new set of cameras to this test, so please keep an eye on it and see how many hours this engine can run continuously.

The plan for this afternoon is to test the seven-cylinder model, which uses the same program as the one we just tested.

If you're feeling bored, you can go out for a walk and check out some pretty girls.

If you encounter a really strong player, go for it first. After you're done, remember to let me know in the live stream so I can watch too.

After finishing his sentence, Li Zhenhua ignored the reactions in the live stream, turned around, and kicked the fat man next to him.

The fat man was exhausted this morning; he had been assisting Li Zhenhua with the tests the whole time.

He did all the manual labor, like moving oil and carrying things.

"Fatty, get up. Let's push the engine aside together and let it stand the test of time."

Liu Xiaodong reluctantly got up from the ground, and Guo Shugui was also busy moving things around. The three of them pushed the engine under the new lens and started it.

After finishing their work, the three went out to get something to eat, and then returned to continue testing the next engine.

After several busy days, all the data from the engine tests met the design specifications.

There are also a few data points that cannot be tested in a short period of time, so these can be disregarded.

Anyway, both engines in the workshop were running, and data was being collected continuously.

The once quiet workshop now indeed has two additional noise-generating machines.

Keep in mind that the engines at that time did not have mufflers; they were purely acoustic, so even if the sound was low, it wouldn't be that quiet.

Listening to these sounds, Li Zhenhua's plan was to proceed with the welding of the chassis, but the noise interrupted his work.

But now he was annoyed by the noise and no longer felt the excitement he had felt when he first heard it.

"Damn, this is really noisy. I guess I need to get the muffler out first, otherwise I'll go crazy in this working environment."

Once again, he was left alone in the workshop, while Liu Xiaodong and Guo Shugui went about their own business.

Li Zhenhua also laid out the materials needed to make the exhaust pipe in front of him.

The most eye-catching thing was a large roll of thermally conductive carbon fiber and a bottle of curing agent.

That's right, the main material he chose for the exhaust pipe this time is carbon fiber, which was also chosen for the purpose of reducing the weight of the car body.

He put a lot of thought into the design of this muffler.

Everyone knows that the noise level of a radial engine is relatively high compared to that of a regular motorcycle.

If the muffler isn't done properly, this motorcycle definitely won't meet the standards for road use.

In the end, it inevitably becomes a tool for street rages by young hooligans, though of course, those young hooligans probably can't afford his car.

He began manufacturing, and the carbon fiber slowly transformed in his hands.