Lin Zhiyue had a gentle smile on her face and said to the workers who came over to ask if they needed help.

Thank you all for your kindness. I don’t need it for now, and I can handle this part myself.

If I encounter a problem that I can't solve alone, I will definitely ask you for help first. Don't think I'm a bother then."

The workers responded with a smile, telling her to feel free to ask if she needed anything, and then they dispersed and returned to their own jobs.

Lin Zhiyue took a deep breath, her eyes became focused and determined, and she turned and walked towards the car that was about to be modified.

She first walked around the car and examined it carefully, as if she was having a silent conversation with her old friend, silently sorting out the next steps of modification in her mind.

Then she skillfully picked up the tools and began to dismantle the car.

Her movements were as smooth as flowing water. She removed every screw and separated every component in an orderly manner.

After some effort, she finally carefully took out the slightly old engine from inside the car.

The engine lay quietly on the workbench. Lin Zhiyue stared at it, like a doctor examining his patient, quickly planning a "treatment plan" in his mind.

She knew very well that the engine, as the core component of the car, was the top priority of this modification.

The first thing she wanted to change was the engine, which determined the performance of the car, in order to increase the speed of the cars of this era.

She has a clear goal in mind as to how much the speed should be increased. If nothing else, the speed must be increased to 120 at least, so as to meet the current demand for more efficient travel and make the vehicle run more smoothly and powerfully.

Lin Zhiyue looked at the engine in front of him, his thoughts racing.

She knew that replacing key components was an essential step to improving engine performance.

She took out the high-performance spark plug that had been prepared long ago from the toolbox. The ignition efficiency of this spark plug was much higher than that of the original car, allowing the fuel to burn more fully in the cylinder and release more powerful energy.

She gently picked up the spark plug, skillfully removed the old one, and then carefully installed the new one. Every movement was precise and her eyes were fixed on the operating part, not missing any details.

After installing the spark plugs, she moved on to replacing the intake manifold.

The new intake manifold adopts a more advanced design with a smoother inner wall, which can reduce the resistance when air enters the engine, allowing more air to enter the cylinder and mix better with the fuel.

During the process of replacing the intake manifold, Lin Zhiyue encountered some minor trouble.

The interface between the new manifold and the engine does not match well. Although the deviation is not large, it may affect the final modification effect.

She frowned, looked at the interface carefully, and her brain quickly thought of a solution.

After a moment, her eyes lit up and she came up with an idea.

She found some suitable gaskets and sealants from the material rack in the workshop, placed the gaskets at the interface, applied sealant, and then adjusted it repeatedly to ensure that the interface fit tightly without any gaps.

After solving this problem, Lin Zhiyue continued to devote himself to the modification work.

She also optimized the engine's fuel injection system and adjusted the injection angle and amount of the injector nozzle so that it could accurately spray the right amount of fuel according to the different operating conditions of the engine, further improving fuel utilization.

After several hours of hard work, the engine modification was finally completed.

Lin Zhiyue straightened up, rubbed his sore shoulders, looked at the modified engine, and a gratified smile appeared on his face.

But she knows that this is only the first step, and a series of tests and debugging will be needed to determine whether the engine has really achieved the expected performance improvement.

She called a few co-workers to help her install the engine back into the car.

With everyone's concerted efforts, the engine was successfully returned to its original position.

Lin Zhiyue connected all the lines and pipes, took a deep breath, sat in the driver's seat, and prepared to carry out the first ignition test...

Lin Zhiyue took a deep breath, calmed her nervous and expectant mood, and slowly turned the car key.

In an instant, a low and powerful roar came from the engine compartment. Compared with the previous sound, the sound was obviously thicker and stronger, like a beast that had just awakened and was ready to go.

Lin Zhiyue stared at the dashboard intently, and various data began to jump.

The engine speed rises smoothly without any abnormal shaking or stuttering.

She stepped lightly on the accelerator and the vehicle slowly moved forward. The power at the start was obviously stronger than before, and there was a light feeling of being pushed on the back.

In order to further test the performance of the engine, Lin Zhiyue drove the car onto an empty straight road.

She stepped on the accelerator deeply, and the car rushed out like an arrow from a bow, and the speed needle climbed rapidly. When the speed reached 80, the car was still full of power, and the acceleration did not weaken at all. It easily broke through 100 and moved towards her expected 120.

During the acceleration process, Lin Zhiyue carefully felt every subtle change of the vehicle.

The steering wheel is precise and the chassis is solid and stable, without any erratic or unstable behavior.

Although the sound of the engine was high-pitched, it was very rhythmic and without the kind of hoarse noise, which gave her more confidence in the effect of the modification.

When the car speed steadily reached 120, Lin Zhiyue couldn't suppress her inner joy and a bright smile appeared on her face.

She knew that her efforts were not in vain and the engine modification was initially successful.

My dear, there is more to this chapter. Please click on the next page to continue reading. It’s even more exciting later!