The five-star engine in front of you, even if it is rated as a five-star star because of its explosive performance, its carrying capacity does not make it insufficient to support the weight of a two-star main gun.

Even if it is a two-star secondary gun, this five-star engine cannot carry it.

In this way, the mecha that can be installed in this five-star engine is only limited to one-star mechas.

Chen Hua felt that this was simply an engine with explosive performance tailored for Tie Niu!

Even if its bearing capacity and defense power look like chicken ribs, its explosive five-star performance still determines that it will be very expensive to redeem its personal points.

Chen Hua took a look, and it was 200 million parts high.

However, no matter how high the personal points cost of this five-star engine, it is just a drop in the ocean for Chen Hua.

So Huh, Chen Hua did not hesitate to spend 200 million personal points to replace the one-star engine of Tieniu with a five-star engine produced in Warsaw City.

"You have successfully redeemed the five-star engine, do you want to replace the engine parts immediately?" Chen Hua's ears immediately heard the words of the staff member.

"Yes." Chen Hua nodded.

Then he ordered a one-star alloy shield, but when he was about to redeem it, the staff member's words suddenly rang out: "Sir, I have to remind you that your one-star mecha is now replacing its engine, and after the replacement is successful, your mecha will not be able to add other external cannons." ”

"Can't I install the external cannon anymore, including my original installation?" Chen Hua asked.

"Yes, then may I ask you, sir, do you want to continue the installation?" The staff asked politely.

Chen Hua was a little speechless, but he didn't want to give up this five-star engine.

"Forget it, there will be gains and losses, you can help me install it, this iron bull, after all, is just my feelings......" Chen Hua finally chose to install the five-star engine.

In fact, no matter how much Chen Hua reminisces about the past, in his heart, he still hopes that the iron bull in his hand can be used at a critical time.

With the addition of a five-star engine, after the upgrade and strengthening of the Quantum Eye, even if an external cannon is not installed, the speed performance will be much better than that of ordinary five-star mechas, at least, it will be fast to escape.

Soon, Chen Hua remembered that the short-range and long-range radar scanning system installed in the cockpit of the Iron Bull was still the most backward black-and-white screen, so he asked, "Then I can change the short-range and long-range screen inside, right?" ”

"The radar scanning system doesn't take up much of the total weight and can be installed." The staff member nodded.

Chen Hua quickly chose the latest short-range radar scanning system, and after spending 20,000 personal points, he began to wait for Tieniu to replace the parts.

About half an hour later, the parts of the Iron Bull were installed, and Chen Hua summoned the Super Bull again, and then placed it on the metal data reading machine.

Soon, Chen Hua did the same, and according to the parts screened by the switchboard system, he directly selected a diffusion light energy attack system from the parts produced in Warsaw City.

This is a four-dimensional image of the appearance of the device, and the light energy diffusion port looks a bit like an open metal fan.

As long as it has a fast enough reaction speed, the metal fan at the mouth of the attack device can be twisted to carry out a circular fan-shaped strafing volley by twisting the angle.

Theoretically, in addition to light energy and some special energy cannons, ordinary mecha shells can be intercepted.

After changing the attack device, Chen Hua replaced the super bull engine with a two-star engine produced in Warsaw City.

Just a two-star star, even if it is produced in Warsaw City, requires less than one million personal points.

After waiting for about half an hour, Chen Hua summoned the black bull again.

The three-star mecha is already a high-star mecha.

According to the theory of human mecha smelting and forging, as long as the metal material of forging a three-star mecha belongs to the high-star level, then the internal meson data of the metal material and the high-star accessories that can be corresponded to can be replaced and upgraded accordingly.

This black bull, because it is a long-range attack mecha, Chen Hua rarely uses it.

When he screened out the parts that could be replaced in the switchboard menu, Chen Hua's eyes widened in horror.

"There are so many parts that can be replaced?"

Looking at the dazzling four-dimensional energy screen, Chen Hua felt a little incredible.

He didn't expect that there were more than 1,280 kinds of parts that Black Bull could replace.

Among them, there are as many as 336 kinds of parts produced in Warsaw City that can be replaced.

Due to the large number of types to choose from, it took a little time for Chen Hua to screen it.

Fortunately, the staff was very patient and quietly waited for Chen Hua's choice.

Chen Hua first browsed all the way down and found that the parts in front of him that could be installed by Hei Niu included a range from one-star to five-star stars.

In fact, the number and variety of low-grade parts that can be installed account for 80 percent.

The remaining parts such as four-star and five-star stars have become only a handful, but at least, these can still be installed in Black Bull.

After some selection, Chen Hua decided to position the Black Bull as a long-range attack mecha.

In addition to choosing a five-star engine that can be installed by the Black Bull, a four-star long-range anti-aircraft gun as the main gun and a five-star sonar gun as the secondary gun, he also specially replaced the cockpit shock sensing system of the Black Bull with an intelligent seismic balance system produced by Warsaw City.

Black Bull's five-star engine, in the display of theoretical data, is not superior, it can only be said to be a very mediocre five-star engine.

In any case, it is a five-star engine, which is many times stronger than the Samsung engine installed in the current Black Bull fuselage.

As for the four-star long-range anti-aircraft guns, they were specially produced by the city of Warsaw with a caliber of 145 mm.

Generally, the four-star main guns used in other cities outside, whether they are long-range anti-aircraft guns or short-range artillery, are all configured with a caliber of 120 millimeters, and the anti-aircraft gun chosen by Chen Hua is a long-range anti-aircraft gun that is almost comparable to the power of ordinary five-star main guns.

The parts replaced by Heiniu are not only the highlights of the four-star long-range anti-aircraft gun, but also the five-star sonar gun auxiliary gun, which Chen Hua values the most.

Because, with the addition of this five-star sonar gun, once it is upgraded and strengthened by the quantum eye, it can make up for the shortcomings of the black bull in the short-range range, so that the black bull has the ability to fight in the near range!