Luo Cheng's hand trembled slightly, but when the other party rushed past the starting point, he still subconsciously pressed the stopwatch in his hand.

On the whole track, the roar of the motorcycle engine sounded, because the speed was too fast, the sound changed from low to high-pitched, and every contestant raised his head and looked over there, this speed is probably more than 10,000, right?

Who would dare to play like that?

If it is an imported motorcycle, I dare to try it in the future, but this domestic motorcycle, the speed is up to 5,000 rpm, and the sound is already wrong, and then the speed must be a cylinder! Few people dared to try.

The Happiness 250 motorcycle does not have a tachometer, but for excellent motorcyclists, as long as they listen to the sound, they can know how high the engine speed is.

In the distance, the roar of the motorcycle engine slowed down slightly, and it was time to start splitting and entering the first corner! However, it was only a matter of moments, and it was only because of the silence of the downshift, and then the roar of the engine was once again high-pitched.

Just after the corner, I pulled the revs to 10,000 rpm! Water-cooled motorcycles, is it so good?

That's right, water-cooled motorcycles, that's how awesome!

On the whole track, the other motorcycles were silent, only the roar of the Tianxia 125, except for the slightly lower engine sound when cornering, the rest of the time, it has been running at full power!

Ruthless, too ruthless!

It's so powerful that you don't have friends! All that was left in the ears of the big guy was the sound of the high-pitched engine, and suddenly, the motorcycle burst out of the last corner!

The rest of the section was the straight, perfect for sprinting, but, at this moment, the motorcyclist's left hand pinched the clutch, glanced forward, and as if deciding that it was not enough, he twisted the key on the dashboard with his right hand.

And so, the roar of the engine disappeared!

The fiery Tianxia 125 motorcycle slipped over by inertia!

What is this guy doing?

Luo Cheng's eyes looked at the fiery Tianxia 125 with complicated eyes, and when it slipped to the end of a circle, the motorcyclist re-twisted the key, released the clutch, and under the inertia, the motorcycle engine was carried again! The driver is another throttle, straight to the end!

The engine roared again, and the moment the motorcycle sped outside, Luo Chengcai reacted and pressed the stopwatch in his hand to stop.

Tianxia 125 walked away, Luo Cheng lowered his head, looked at the stopwatch in his hand, three minutes and fifty-nine points and three seconds, and just ran into four minutes, but this is based on the fact that the last section of the opponent slipped over, if the last straight, the other party is also 10,000 revolutions, the time will be saved at least more than 20 seconds!

This motorcycle is too fast!

Its displacement is not as large as the Happiness 250, but it can always maintain a high rev of 10,000 rpm, and the engine is always working at maximum power!

The motorcycle disappeared and everyone fell silent.

What's next?

They originally thought that they could press Tianxia 125 to the ground and rub it against the ground after formulating all kinds of rules, but who would have thought that the other party would actually change the air cooler to a water cooler! Use the flowing liquid to drive the heat of the engine, as long as the radiator area is large enough, how much heat can be taken away, and the engine can always work at normal temperature!

Bah! Someone spat out hard.

"Hmph, but with the advantage of a water cooler! If they had been in the previous Tianxia 125, they wouldn't have dared to open it like this! ”

"That's right, you can't let them participate in the competition, it's just cheating!"

"The rules of our competition should be changed again, and water coolers are prohibited from participating!"

Listening to these voices, Luo Cheng's eyes also lit up: "That's right, we should go to the organizing committee of the competition and revise the regulations to prohibit water-cooled motorcycles from participating!" ”

"Hmph, if you can't compare to others, change the rules, shame!" Zhang Dali suddenly said: "On the global track, there is no distinction between water coolers and air coolers!" ”

After speaking, Zhang Dali's head flicked down, so the goggles of the motorcycle helmet were thrown off, he twisted the accelerator fiercely, and the happiness 250 soared again.

"Time me, I'm going to run to three and a half!"

"Be careful!" Luo Cheng shouted loudly.

Happiness 250 soars.

The displacement is twice as large as the opponent, and there is no reason to lose to the opponent! Even water coolers are no exception! With this belief, Zhang Dali returned to the track without hesitation, and on the first corner, he skillfully split the corner, but felt as if the motorcycle was uncontrollable, unable to follow the arc he expected!

It's not enough centripetal force! Zhang Dali's body bent inward again, his knees brushed the corner, and sure enough, the motorcycle began to obediently obey! However, just when he was about to get out of the corner, the rear wheel suddenly slipped, and the motorcycle of more than 200 kilograms was thrown out! Zhang Dali's body rolled on the track for a few laps, and then he didn't move.

"Quick, call an ambulance!" Luo Cheng shouted loudly.

One of the five tigers in the field of domestic motorcycle racing, he actually fell because of a mistake in splitting a corner!

Tianxia 125 motorcycle did not hear the roar of the ambulance behind, it just went to the track to experience it, and then went home, this competition venue is in the western suburbs, and the distance from Pingwang Motorcycle Factory is not particularly far.

The fiery red motorcycle slipped back to the Pingwang Motorcycle Factory and drove directly into one of the factories, but the rider got out of the car, took off the helmet, and showed his short ear-length hair.

"Xiaojing, how do you feel?" Zhao Jiao asked with concern.

Xiang Jing smiled: "It's not bad, the track is much easier than I used to run, and I didn't use all my strength, I always pulled up at low gear and high speed." According to what Mr. Qin said, the red line is 10,000 turns, him! ”

Far away in the sky, close at hand, Qin Feng has always been worried about a suitable racing driver, almost all the outstanding domestic racing drivers have been taken by other manufacturers, when it is his turn, there is no suitable racing driver, I didn't expect that this Jing is actually a capable person, don't look thin, full of muscles, not only can be a bodyguard, beat down a few big men with bare hands, drag racing is also a must.

After Xiang Jing finished speaking, his eyes looked at the motorcycle that Dawei and others were assembling: "Mr. Qin, what kind of car do we use during the official competition?" Actually, we don't have to make any more trouble, we have more than enough car on hand. ”

Qin Feng smiled: "Xiao Jing, you can't underestimate the shamelessness of your opponent, if you go today, you will definitely shock them, who knows if they will come out with other moths, needless to say, as long as the rules are revised again, then our Tianxia 125 may be in a group with low-level players, and even if you win, it will be a victory." ”

Modify the rules? Hearing Qin Feng's words, Xiang Jing frowned: "Can they be so shameless?" ”

"Fairness is a joke. Where has this world been fair, instead of pursuing the so-called fairness, it is better to find ways to enhance your strength. Qin Feng said: "If you are strong, you are really strong, and everyone is very interested in this motorcycle." Pang Gong, don't you say? ”

Dawei Wei, who was busy, raised his head, the sweat on his forehead just slid down, he wiped the sweat with his fingers, and then he became a big face.

"Of course, we left BAIC Motorcycle and joined our Pingwang Motorcycle Factory because we could build motorcycles according to our own ideas, and this period of time is our most rewarding day!" Da Dawei said: "Now, if we want to build a two-cylinder 250 motorcycle, it will be a sacred and glorious cause!" ”

"Pang Gong, the cylinder is ready, this is the fifth, can you see if it's appropriate?" At that moment, someone came running over with shiny parts, which were full of heat sinks, and looked extraordinarily wide.

"Almost, this one is more accurate, let's try this!" After taking the caliper and measuring it, he nodded with satisfaction.

Soon, everyone was busy again.

Capital, office of BAIC Motorcycle Association.

"It's going to be a game soon, isn't it too late to change the rules before the game?" Lao Zhang, who is in charge of formulating the rules of the national two-wheeled motorcycle label competition, frowned.

"We're not changing the rules before the game, but we're going to change the rules that weren't reasonable before." Luo Cheng said: "Lao Zhang, you also know that in international competitions, all 50cc to 125cc are a group, only we here, 50cc to 100cc are divided into a group, this is unscientific, since it is not scientific, then it has to be changed back." ”

"Lao Luo, what you said is simple, if you change it like this, those 125cc motorcycles and 50cc motorcycles can be compared together? Isn't this an elephant and ant race? Lao Zhang said: "At the beginning, we just thought that the 125 motorcycle was too capable of fighting, so we made this change, and now we want to change it back?" ”

It's a huge difference.

Originally, a number of 90cc and 100cc displacement motorcycles were still waiting to get good results in this group, but now, directly dial the 125cc one, that is, crushing, needless to say that the 50cc one is playing soy sauce, even if it is 100cc, I am afraid that it will not be able to get the ranking!

"Lao Zhang, you don't know, those people in Tianxia Motorcycle are arrogant, this time they went to our competition venue to show off, deliberately stimulated Zhang Dali, and as a result, Zhang Dali had an accident during the competition." Luo Cheng said: "Now, Zhang Dali is still in the hospital. ”

"What did you say?" Lao Zhang immediately stood up.

"Well, look at my mouth." Luo Cheng hurriedly apologized: "Zhang Dali was afraid that you would be worried, so he specially told me not to let me tell you." ”

"How's he doing?"

"It's not a big deal, it's just that three ribs are broken."

Broken three ribs, still called no big deal? Lao Zhang stood up angrily and took a few steps back and forth.

"If you think it's not appropriate to change the displacement, then simply change the cooling standard, the big guys are air-cooled, but they Tianxia Motorcycle has a water-cooled push-out, the water-cooled machine has a congenital advantage, the whole process can be 9,000 or even 10,000 rpm high speed, this is not an order of magnitude comparison at all." Luo Cheng continued.

Lao Zhang thought for a while, and then nodded: "That's right, you're right." Let's refine the competition system, one group of air coolers, and another group of water coolers! ”

The country is all air-cooled engines, only Tianxia motorcycles out of the water-cooled machine, in this way, Tianxia motorcycles can not send out the water-cooled machine, can only let the air-cooled machine, and their air-cooled machine, will definitely not dare to soar all 10,000 revolutions, at that time, the victory is still their happiness 250!

It's not that they're too domineering, it's that 250 loses to 125, they can't afford to lose that person!

"Immediately convene a plenary meeting of the organizing committee of the competition!" Lao Zhang shouted to his assistant: "We refine the rules, and all team members need to vote!" If everyone agrees to allocate 125cc to 100cc, that's okay. ”

That night, the changed format was passed to everyone.

"Hmph, that's despicable!" Xiang Jing clenched her fists with some anger: "Mr. Qin, if they do this, no one will care about them?" If not, I'll report to my superiors! ”

"Xiaojing, don't get excited." Qin Feng was very calm: "Come on, the motorcycle is loaded, you try!" ”

This kind of thing, after seeing a lot, you will get used to it, some associations do calligraphy competitions, competitions and the like, and all the winners are the members of the organizing committee. Needless to say, how is it in China, it is the same in the world, our table tennis is slippery, and the table tennis of the Olympic Games often changes the rules to restrain us? But in the end, our table tennis still relies on strength to win the first place.

We are powerful factions, and we don't care about them in general. With our R&D speed, who can compare?

Xiang Jing nodded and looked at the motorcycle that had just been assembled.

After all, it was developed in an emergency, so the 250 motorcycle in front of me used some 125 accessories, such as fuel tanks, partial covers, etc., but the frame has been widened, otherwise it can't fit the parallel twin-cylinder 250 engine, because it is a twin-cylinder engine, so the heat sink presents a rectangular shape, after chrome plating, shiny.

The piston connecting rods inside are all parts of the original 125, only the cylinder block and crankshaft need to be reworked, and the carburetors are two, each responsible for one cylinder.

The two cylinders naturally need two exhaust pipes, which extend from the front of the cylinder and turn around to the back, with one cylinder on the left and one on the left and one cylinder, and on the whole, it is the same as the Honda CB125T.

If you want to improve the quality of a car, you have to install more exhaust pipes for it, look at those cars in later generations, there must be two exhaust pipes on the rear butt, or even four, so that it looks like a high-performance car, as for how many exhaust pipes do not emit heat in winter...... As long as you are not embarrassed, it is others who are embarrassed.

"Mr. Qin, you are really amazing! I actually came up with the idea of putting two engines side by side to form a twin-cylinder engine. Xiang Jing let out a sigh of emotion, and then walked to the motorcycle.

"It's nothing, if we need more power in the future, we can add another cylinder." Qin Feng said with a smile.

Adding cylinders to increase power output is actually very common on motorcycles.

In order to pursue high performance, Suzuki became the first motorcycle factory in the island country to eat crabs, using a parallel twin-cylinder water-cooled engine, this T500 motorcycle has participated in many competitions, and has achieved good results, but still feels that the power is insufficient, so in 1972, Suzuki launched the famous GT750, the number represents the displacement, he is to add a cylinder to the previous motorcycle engine, changed to a three-cylinder engine, the maximum output is up to 50 kilowatts, and the maximum torque has reached 76 Nm, It has become a king-like existence.

Now, Qin Feng is just changing a single cylinder to a double cylinder, which is easy.

In fact, there are many layout methods for two-cylinder motorcycles, and motorcycles represented by Harley like to use the V-shaped front and rear layout, with two separate cylinders placed front and rear, which has the advantage of not occupying the width of the body, and is as small as a single-cylinder engine, but the heat dissipation of the rear cylinder is certainly not good.

BMW motorcycles, on the other hand, prefer a horizontally opposed engine, with two cylinders placed horizontally on the left and right sides, which provides the best heat dissipation, but at the same time the widest.

These are the design schemes of large-displacement motorcycles, because the two-cylinder displacement of this motorcycle in front of them is only 250 ml, so, the two vertical cylinders are put directly together, according to the design scheme of Honda CB125, the engine occupies a small space, and the heat dissipation is good enough.

Xiang Jing stepped onto the motorcycle and pressed the pedal with his right foot.

Buzz, buzz!

The motorcycle roared.

The exhaust sound of the twin-cylinder engine is even more dull, representing surging power!

Xiang Jing slammed the throttle twice, felt the roar of the engine, and then released the clutch.

The front wheels are half a meter off the ground in an instant! Zhao Jiao on the side exclaimed, the motorcycle had already jumped forward for two or three meters, and then when Xiang Jing switched to second gear, the power was briefly interrupted, and the front wheels landed.

125 motorcycles can also pry the front wheel, but that requires a second gear start, blasting to 4,000 rpm loose clutch, and this Tianxia 250 motorcycle, because the power is too strong, so, the start is a little fierce will lift the front wheel!

How powerful is the power? The maximum power has reached 20 hp and the maximum torque is 19 Nm! These figures are twice as much as the Happiness 250, but the weight of the car is more than 50 kilograms lighter than the Happiness 250!

Xiang Jing circled in front of him, and then rode back.

"Yes, yes, this motorcycle has performed better than any military motorcycle!" Xiang Jing said with great satisfaction: "Mr. Qin, if you add a sidecar to this motorcycle, the troops will definitely order it in large quantities!" ”

The partial nephew in the hands of the army is the Yangtze River 750, which originates from Lao Maozi's M72, and Lao Maozi's motorcycle is copied from the BMW R71, so the Yangtze River 750 carries the lineage of BMW R71, and the most iconic is the twin-cylinder horizontally opposed engine and transmission shaft.

Therefore, after the resurrection of the Yangtze River brand in later generations, the manufacturer put the in-line twin-cylinder 650 engine on it, or the chain drive, the majority of customers did not buy it, and later changed it to shaft drive.

But now, if the army uses it, this kind of Tianxia 250 modification is also okay, don't look at the only 250 level engine, the output power to the Yangtze River 750 22 horsepower is not much worse, and the weight of the car is a lot lighter, fuel consumption is also very low!

Compared with the Yangtze River 750 100 kilometers of 9 oil, this motorcycle can be reduced to less than 4 oil per 100 kilometers, although the army is not short of fuel, but lack of endurance, add fuel once, run twice the distance, who doesn't like it?

Qin Feng smiled, and remembered a certain sentence in his mind, two wheels carry the soul, and three wheels carry the ......