"Brother Peng Peng...... What are you busy with, hey, this is ......" Yun Feiyang saw Xiao Nan in one-piece overalls as soon as he entered the door: "Yo, isn't this my sister-in-law!Isn't your Z4 newly bought, why did you overhaul the engine so quickly?"

Hearing the words sister-in-law, Xiao Nan was ashamed and annoyed and couldn't wait to find a piece of tofu and kill him, forget it, it's all to blame Huzi's weak soul for pretending to be a girlfriend, but you have to pretend forever the first time you pretend, even if you don't want to pretend to go on anymore, you have to pretend to break up again, how embarrassing you have to be to finish it......

"Uh...... Yes...... Hehe...... Hello......" Xiao Nan had to reluctantly make a fool of himself, and quickly pulled the topic to his locomotive. "It's not an overhaul, I've sent some modifications from the Internet to strengthen the engine of the Z4, which is not going to be completed soon. ”

"Strengthen the modification?" Yun Feiyang and a few other young people came to their senses as soon as they heard it, and they came over to see Xiao Nan's Z4 engine with a hula. "Wow!Twin camshafts!Four valves!Awesome!" The Z4 modified cylinder head, which has not yet closed the cylinder head lid, is obviously very different from the original, which can be seen even by the layman looking at the shape.

"Not only that, but also replaced the middle cylinder and piston, and increased the displacement to 80CC, and the piston is still a pointed ......piston with an ultra-high compression ratio," Peng Peng pointed to the engine to introduce to the young people.

"Sister, you are really a genius!" Yun Feiyang and the other young people suddenly fell to the ground in admiration. Hearing the praise of these little brothers, Xiao Nan was not only not happy, but depressed, his originally good "brother" became "sister" in their mouths, how embarrassing.

"It's 10:20 now...... Peng Peng reminded Xiao Nan with a wicked smile: "I didn't have breakfast and kept my stomach, this barbecue ......"

"Let's see~" Xiao Nan didn't raise his head, and kept bolting the engine with a torque wrench in his hand.

"By the way, I don't know if any of you have ever heard of the 'hussar'?

"Hussar, I know! What is very hot on the Internet is a kind of over-standard electric vehicle that exceeds the national speed limit standard for electric vehicles, which is actually an electric motorcycle. Peng Peng took over the topic as soon as he heard it: "I haven't ridden any hussars, but I heard that this thing sells very well on Taobao, the drive motors are exceeded, from 2000 watts to 6000 watts, 0~60 kilometers of speed can kill family cars in seconds, according to legend, some of the maximum speed can reach 160 kilometers per hour......"

After Peng Peng finished speaking, he glanced at Yun Feiyang a little strangely and said: "The low-speed torque of the electric car is indeed more powerful than the large-row locomotive, and the low-level acceleration is very fierce, but the maximum power is not large, and it will come to an end when it reaches more than 100 kilometers, unlike the large-displacement locomotive you drive at every turn on 200 kilometers per hour, and the battery endurance is very poor, you can run 80 kilometers slowly, and if you let go of the full speed run, the battery will be empty at most 40 or 50 kilometers, I said you guys will still be interested in electric vehicles?"

"Oh...... It's not ......" Yun Feiyang handed Xiao Nan the pullover wrench in his hand, turned his head and said to Peng Peng: "I received a call from Sister Xiaoting this morning......

Hearing the word "Xiaoting", Xiao Nan's heart jumped suddenly, although her hands kept pretending to be casual, in fact, she had already focused most of her attention on her ears, listening carefully to every word Yun Feiyang said, and the movements in her hands couldn't help but slow down.

"Sister Xiaoting said that she was going to Baoquan Mountain to see the lover's tree, I asked her if she wanted to borrow my YZF400 to go, she said she had a car, I asked her what car she bought, she said to me 'hussar' and hung up the phone......"

"Ride an electric car to see the lover tree!" Xiao Nan was shocked when he heard it, just from Z City to the foot of Baoquan Mountain, there are 50 kilometers away, when going up the mountain, the thirty-three turning mountain roads, all the way more than ten kilometers of bends are steep and uphill, you must know that electric cars are not like motorcycles, there is no gear to change, when going up the mountain, it will consume several times the usual power, even if this is an over-standard electric motorcycle, I am afraid that there will be no power at most when it runs to the top of the mountain, and Xiaoting will be thrown halfway up by her electric car.

"What time did you answer the phone?" Xiao Nan suddenly stopped the assembly in his hand and turned to look at Yun Feiyang. Yun Feiyang was stunned: "It seems to be ...... I can't remember exactly what it looked like at half past eight in the morning, but I was playing morning games with my brothers in an Internet café. Why are you asking about this all of a sudden?"

Xiao Nan didn't say a word, dropped the wrench in his hand, and ran upstairs, taking off the oily gloves on his hand as he ran, and ran straight to the second floor to the wall covered with photos, to see a large map hanging there.

"What's wrong? What's the problem?" The curious Yun Feiyang also ran up, just in time to see Xiao Nan compare the scale with his finger in the lower right corner of the map, and then use his two fingers as a compass to measure the map, and draw on the map. Her action looked very familiar, as if she had often seen someone measure the map like this before, but Yun Feiyang couldn't remember it for a while.

"If Xiaoting runs slowly all the way, maybe she can really run to the 'lover's tree' and turn back, if she goes down the mountain smoothly to find a place to charge, it will take at least four hours to charge to ensure that she returns home, in that case, it may not be until eight or nine o'clock in the evening to get home;

Xiao Nan became anxious in his heart, and regardless of the clouds flying behind him, he trotted all the way downstairs and asked Peng Peng: "Peng Peng, can you help me see how the weather is from this afternoon to the night, will it change?"

Although Peng Peng couldn't help but feel a little strange that Xiao Nan cared so much about Xiao Ting, he also sensed something from Xiao Nan's nervous tone, and hurriedly went to the computer to check: "Oh, it's true, it will be sunny and cloudy after noon, and there will be a shower around five or six o'clock in the evening...... But you know that the weather forecast is always accurate......"

Xiao Nan was so anxious when she heard it. "Feiyang, lend me my phone. Yun Feiyang took out his mobile phone and handed it to Xiao Nan, Xiao Nan picked up the mobile phone and didn't find the phone book, skillfully entered Xiao Ting's mobile phone number, hesitated a little and pressed the connect button. "Sorry, the number you are calling is not in the service area at the moment, please call again later......"

Xiao Nan was very frustrated and returned the phone to Yun Feiyang. It seems that Xiaoting didn't seem to stay at the foot of the mountain, and went directly into the mountain, and now she has reached a place where the mobile phone signal is not covered...... Maybe she's crossing a tunnel through the mountain, or maybe she's already over the ridge to the back of the mountain...... In this case, her electric car must not have enough power for the return trip......"

"Do you know Sister Xiaoting?" Yun Feiyang asked with some curiosity when he saw Xiao Nan's unconcealed anxiety on his face. "Uh...... Of course......" Xiao Nan gave a vague answer without raising his head, picked up the power tools in his hand and restarted the engine assembly work, and the action was so fast that the people next to him couldn't see it clearly.

"Actually, I'm worried about her, after all, she's Brother Xiao Nan's girlfriend, and our brothers should take care of her when Brother Xiao Nan is away, otherwise, I'll drive a YZF400 to pick her up......"

Yun Feiyang said very sincerely, Xiao Yun is quite a good person, he is very good at taking the initiative to think about others, and he is known in the team as "it is difficult to find Feiyang", otherwise he would not become the third person in the team after Xiao Nan and Huzi.

But Xiao Nan shook his head and smiled at him and refused. "Your car is a street sports car, it's not easy to bring things, even if you run over, you can't help her, is it possible that you plan to find a rope to drag her back with people and cars for 50 kilometers? My car is a pedal, and it can be loaded with things in front ......."

Xiao Nan turned around and took the pullover wrench handed over by Yun Feiyang, turned around and said while putting on the screws: "Don't worry, my car can be done in half an hour, with the performance of the modified Z4, I can reach the foot of the mountain in a distance of fifty kilometers in half an hour at most, and there is only one way to go to the 'lover tree', I will definitely meet her along the road." Xiao Nan said in his mouth that he didn't stop for a moment, and in a blink of an eye, he finished installing the sealant on the middle cylinder and the cylinder head.

"What are you going to bring with you in front of the pedal?" Yun Feiyang asked curiously.

"Have you forgotten? Camping equipment, doesn't the team have a portable silent generator, it's still here, right?" Xiao Nan has already started to install the camshaft and timing chain, and it seems that it will be completed soon.

"Ah...... I see! Charge an electric car with a portable generator!" Yun Feiyang looked suddenly enlightened. "Of course that thing is still there...... It was bought by Brother Xiao Nan and Brother Huzi in the past, and they were going to take the convoy up the mountain for camping, so you know it...... Since Brother Xiao Nan's accident, our convoy has never been camping, and the generator has been on the second floor and no one has touched it, you wait, I'll take it down for you!"

Yun Feiyang ran up to the second floor, and after a while, he walked down with a very delicate little suitcase-like thing in one hand, and gently placed it on the ground to wipe off the thick dust on it with a rag. This portable generator is very small, the size of an all-inclusive helmet, and the engine fan muffler is all wrapped in an orange engineering plastic shell, and its sleek and non-angular appearance looks like a small suitcase, weighing only about 10 kilograms, and can output 12 volts AC 230 volts and 700 watts of electricity, which is very suitable for camping.

"You're busy, I'll debug this little thing, I've been putting it for more than half a year, and I don't know if it's broken......" Yun Feiyang picked up a screwdriver and screwed the guard plate of the generator: "I have to change the oil first, the oil will deteriorate if it is left for too long." ”

Xiao Nan didn't have the extra energy to watch how he maintained the generator, so he just sped up the assembly of the cylinder head part of the Z4. Her inexplicable nervousness drove the atmosphere in the store to seem to be a little flustered, and several young people in the team saw that Xiao Nan was busy and couldn't help in a hurry, so they simply turned to watch Yun Feiyang and help him screw and get engine oil. In fact, the maintenance of the generator is very simple, less than ten minutes Yun Feiyang changed the oil to the generator, he held the generator with his left hand and his right hand was about to pull the starting rope, and suddenly heard the roar of the engine without arranging the air pipe on the lifting platform, and the special running sound of the double-camshaft four-valve engine was suppressed by the noisy exhaust sound.

"Stop!" Peng Peng quickly ran over and turned off the Z4's car key, and said to Xiao Nan, who was a little overwhelmed in front of him: "You forgot to fill in antifreeze, such a high compression ratio will quickly burn the engine after modification." I know you're worried about Xiaoting, but don't panic, it's just too late. ”

Xiao Nan's face was slightly red, and he didn't dare to explain Peng Peng's words, nodded gratefully at Peng Peng, and hurriedly went to get antifreeze and fill it into the radiator. On the other side, Yun Feiyang pulled the starting rope of the generator hard, and after two or three clicks, the generator started silently, only making very small noise and vibration, and the voltmeter on the fuselage rotated. This is indeed a good thing, and there is a good reason why Xiao Nan would rather spend more money to buy the quietest and most compact generator - camping in the mountains, if the generator makes thunderous noise and vibration, who has the heart to feel the feeling of the leaves being blown by the wind? Who can listen to the sound of the babbling fish in the stream?

Peng Peng rummaged through the shelves for a long time, took out an exhaust tail section and walked over to Xiao Nan: "This is the carbon fiber backpressure exhaust tail section used on my previous APE100, the car has been sold, I keep it useless, you install it first, if you continue to use the original exhaust pipe, it will affect the performance of the modified engine." ”

"How can this work! This is so expensive, I don't have much money now......" Xiao Nan shook his head violently.

"If you take it, you can take it, it's not an outsider here, we are playing with heavy cars, we don't need this, this thing is a waste of resources to throw it, I'll give it to you!"

"Uh...... Well, thank you~" After all, Xiao Nan was in a hurry, and she didn't have the time and heart to be polite with Peng Peng, she smiled at Peng Peng gratefully, took the tail section of the exhaust and wiped it with a rag and put it on the car.