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Focus on track upgrade Golf GTI modification ideas to share

In May 2018, I purchased the 7.5-generation Golf GTI, which has been playing for more than 3 years, and has surprised me again and again from the road to the track, and I am glad that I chose it in the first place.

Focus on track upgrade Golf GTI modification ideas to share

Because steel cannons have never been fired, the target when selecting a car is a steel cannon. Began to pay attention to A45, from 2013 legend A45 to go public when it has been concerned, for various reasons to buy a car this thing is a delay is 5 years, these 5 years contacted more vehicle knowledge, the idea of choosing a car from "using a car" to "play with a car", with the increase in age consumption is also more rational, for the family is not rich 50W to buy a toy is somewhat not worth it, yin and yang under the choice of GTI, now it seems really lucky.

"GTI" for me does not have those sentimental feelings, classics, originators and other things, only because 20 W toys I can play, can take into account the transportation, the modification market is mature. This kind of thinking makes me feel very peaceful, not too much expectation, but everything that performs well is "wow". The level of writing is limited, and I try my best to let the officials understand what I want to express and share my experience in playing with the car; The car never thought of selling, I will treat it like a family, this article is also an account of it.

First of all, I think there is no high and low in playing with cars, and there is no chain of contempt, whether it is racing, 04, posture, off-road as long as this process can bring you happiness, enjoy the process; Never base your happiness on despising others, those videos on the Internet that spray one by one, don't learn, many of them are capital operations that attract people's attention, don't make money when people make money, and the onlookers eat a mouthful of spit and disgust. The domestic automobile culture is to survive in the cracks, please stinky rats do not scourge. Many views are not necessarily correct because of my own ignorance, welcome all riders to exchange and discuss, learn together, please maintain that kindness, thank you.

The feeling of using the car in the original factory state

Personal feeling is that it is great value for money, you can go to the street to buy vegetables and pick up the baby and walk the dog, and you can also race up the hill to split the bend.

Let's hack ourselves first, and talk about the disadvantages:

1. The first slot point is that you can't turn off esp! Fxxk!

2. After the domestic castration of the steering machine, castrated the electronic limited slip differential, so the original control is more garbage than the foreign version.

3. Before driving A6 such commercial vehicles more, just opened the GTI when the most uncomfortable is the noise, the original factory with the tire tire noise is huge, the overall sound insulation of the vehicle is very general, exaggerated to say 100 miles of speed to talk about shouting. Not to mention now after the modification, my 3-year physical examination report shows that my hearing has dropped by 10db. (Of course I don't care about this)

4. EA888 three generation is a high temperature machine, the normal oil temperature is 100-106 ° C, the track runs casually 130-140 ° C, the water temperature is not high.

5. The original factory book power is flat, even a little crotch, any family car is not comparable.

Let's talk about the advantages:

1. Fuel consumption is really friendly, especially with E mode can be neutral taxiing (there is a picture and the truth).

2. Although the power is not high, but the dynamic response is very smooth, although the turbo lag is there, but the control of the speed is acceptable.

3.The box of DQ380 is decent, the downshift speed is very fast, and the upshift speed is very hehehe. I think there is still a certain gap between me and PDK.

4. Play is very worry-free, will not burst the cylinder from time to time, this is often joked about the friends around to play K24. Of course, it is not that K24 is not good, the friend is K24 racing, the teeth are denser, the speed climbs fast, as long as the overrun is explosive, this is the driver's problem.

My idea of playing with cars is that I will have a long-term plan for playing with cars, and I must know my purpose, purpose, and purpose before changing! Then will be more in-depth learning of the relevant knowledge of the modification, after basic understanding, to see if it can meet the current purpose, whether it can meet the long-term planning, if you can, OK, load the car!

For example, if I want to play racing, I won't choose calipers with dust jackets, I won't change those fancy decorations, and finally what level will the car achieve? Probably will be divided into several stages to do, what to upgrade first, whether the early modification can be used later and so on.

Each stage first drives the car state to the limit, then fine-tuning, and finally carries out the next stage of modification, avoiding the installation of demolition, dismantling of the security; This kind of car play idea is not only thanks to the friends around me who are very cognitive, but also thanks to my wallet, because there is no money for me to ho ho, so I can only spend every penny on the blade.

Su Che played for 1 year, only changed the DIXCEL Z leather and Weishi RS garbage tire, and began to enjoy the joy of track racing.

It is very fortunate that in our small city of line 7.8.9 there is an international secondary circuit , Ordos International Circuit. GT1 level competitions have been held, and local and surrounding friends can go for a run at any time. Also welcome riders from all over the country to play, the track is super awesome, it is a little far, but the track cost is relatively low. This is the Kangbashi District of Ordos City, which was maliciously evaluated as a "ghost town" by unscrupulous reporters around 2008, where people are kind, meaty, alcoholic, and evil!

State of the car from 2:17 to 2:13 (slag tire)

First upgrade in early 2020

Focus on track upgrade Golf GTI modification ideas to share

The first upgrade replaced the brakes, exhaust, and wheels.

brake:

Budget about 2W, the track with try not to have dust cover, after all, a section of running 8-10 laps, a day to run a 5.6 knots, easy to melt dust cover, no sleeve is more cool, at that time the main hesitation GTS and 9660, GTS is a bit expensive, but also heavier than 9660 a lost, comprehensive consideration of the choice of 9660, this set is wasted, the next set of GTS or AP custom version. The brake discs are consumables, starting with 355, light weight, and the tires are not much wider, which is more matched.

There are many misunderstandings in the brakes, some modification shops do not know or in order to make money he will not tell you, the main role of the caliper is to combat heat decay and brake foot feeling (here the riders do not bar me, caliper is another role, here is not very rigorous, everyone can understand what I mean on the line). Don't simply believe that it can improve the braking force and shorten the braking distance, which is helpful, but it will not be too big; The braking force is mainly the brake oil pump, the brake pad, and the coil in the tube! The braking distance is mainly the tires in charge of this! As long as you can step on the ABS, it means that your braking force is enough.

Then there is the piston area that must be considered when changing the brakes, and the piston area of the modified caliper is approximately equal to the piston area of the original caliper, which is controlled within 5%. Because the brake oil pump has not changed, if the piston area becomes larger, to achieve the same braking force, you need to step on the deeper brake (brake stroke), which is why many cars change the caliper after the brake stroke becomes longer and the foot feels softer, interested riders can do their own mother principle, here is a simple reminder to all riders.

As for the brake foot feeling, I think it helps to improve driving skills, to be precise, when brushing the lap speed, it will make it easier for you to grasp the braking force (especially in the corners, tracking, etc.) and improve the lap speed. Here the small partners of the rear-drive electronic auxiliary full pass will feel more obvious.

Brake is a life-saving thing, when modifying must choose the genuine product, whether it is domestic or imported, as long as it is a legal genuine product, regardless of whether it is excellent performance, but can avoid the villagers from going to your house to eat.

I feel that the brake skin is more important than the calipers, and it is also something that should be changed at the beginning, and the brake force and anti-heat attenuation are the first places in the greatest achievement. But this thing has a working temperature, so you don't get off the track on the professional competitive skin, you drive on the street, can not reach his working temperature, will make you have a feeling of no brakes, so take into account the street then it is recommended to cap the Z leather, 72 this level, and then the high level of leather is usually not safe.

To say more, the best way to combat heat attenuation is to do brake air conduction, which is inexpensive and can also be installed X to look professional.

exhaust:

Mine is the middle tail section of the IPE (with valves), and the most considered part of this part is the sound, which hits the soul directly, and is also the last stubbornness of the internal combustion engine. The reason why I did not plan to move the program in the near future, but also to take into account the daily transportation, the low twist is strong, and it will also be a little disturbing.

Like the voice of ipe, low kind, like a beast that has just woken up, to say a more face-slapping description is that the sound is very similar to the "scorpion" exhaust, helpless scorpion is too expensive (self-consolation money to spend on the blade), every time I see someone else's scorpion has the urge to take it down and hold it and lick it wildly. Personally I don't like the sharp and high-pitched kind, personal love well, there is no good or bad.

The exhaust is very test workmanship, some brands or some brands of a certain model will produce resonance, resonance will be generated at a certain speed, not necessarily the highest rotation, resonance is very uncomfortable, there is a feeling of being the first hammer. Therefore, before changing, you must choose a good brand, negotiate with the modification store, and avoid regret.

It is recommended to choose the exhaust with valves, the IPE valve is smaller than the original sound after the valve is closed, which is very suitable for driving in the city. Here strongly condemn those unscrupulous street bombing spirit boys, don't smear the car circle, your kind of behavior will only make people feel that you are very low, and I also wish you an early opening at home! I also hope that the relevant departments can improve the relevant laws and regulations as soon as possible, and don't knock everything to death with a stick.

Wheel:

It uses the spinning of domestic Artka, which is about 8.5KG. Personally felt good value for money. Looks like a classic TE37. The quality of this brand of wheels feels good, rushing through the sausage road shoulder, into the wave pool, basically every time the road shoulder is full, there is no deformation, cracking, this price weight control is also good. Before changing the hub, we should consider the parameters, avoid the brakes, rub the fenders, and match the width of the front and rear tires.

GTI compared with the Japanese rear wheel is dead, not flexible enough, so when I first started playing, I boldly tried it, replaced by the front 235, the rear 225, the front width and back narrow, the effect is very obvious, the tail follow-up is significantly improved, and the understeer is improved.

tyre:

This thing is really a penny for a penny, never fantasize that the cheap will be better or almost better than the expensive, even if it is 100 expensive, you can feel it. I won't say more here. Cup2 is recommended, single lap performance may not be as good as AR-1, but the resistance to thermal aging is very good. Hankook's TD and Z214 are really comparable to hard bald heads, and the symmetrical pattern (the front-drive driver who does not have enough inclination angle understands).

Best result after the first promotion stays at: 2:10 (cup2)

Second upgrade in September 2021

The second upgrade was made to oil-cooled, LSD, shock absorber, intercooled, and garbage tank.

Focus on track upgrade Golf GTI modification ideas to share

The accessories have been completed and waited to be loaded, it is this water tank, in vain my antifreeze.

Focus on track upgrade Golf GTI modification ideas to share

Bode's mechanical limited slip differential.

Focus on track upgrade Golf GTI modification ideas to share

The DQ380 needs to break up the box all the way through, with the differential at the bottom.

Oil-cooled:

EA888 third generation is a high temperature machine, the last oil cooling cooling down. After all, the 3-year warranty has passed, and the temperature cannot be controlled and dare not play like this.

The original factory daily driving 100-106 °C, the track runs a 2 laps to start about 130-140 °C. The fog lamp was directly hollowed out, and a wind shield was simply made, and the temperature dropped by 10-15 degrees. It still has a role, and the next step is to optimize the wind.

LSD:

The soul of the front-drive car, there is a world of difference between and without, GTI domestic also castrated the electronic limited slip differential, disgusting. Grinding plate type, although the degree of freedom is higher, the locking effect is better, but the later stage needs maintenance, and the car must be driven daily, decisively give up. On the Tolson machinery, when installed with the assistance of 4S brothers, the differential is at the bottom of the box, the basic need to break the box (here is really not as good as Honda, small size, and easy to change), feel that the lock rate can reach about 50%, the effect is still very obvious, the bend to the oil is obviously dragged to the bend, personal feeling is also the main reason for improving the lap.

Intercooling:

Turbine car to reduce the intake temperature of the most effective means (of course, there are water spray, wine spray method), but also for the next step of power upgrade to do a good job, so the choice of WT intercooling, see a lot of evaluation WT effect is very good, this model limit is higher than the forge, but will be heavier. The tail speed of the high straight can be increased by 10 KM/H.

water tank:

The original plant water temperature meter is set at about 90 degrees, basically do not move, the brain pumped together to change it, the result began to be high temperature! The temperature exploded instantaneously, and the temperature of the pine oil sliding down instantly. Personal feeling is that the water tank circulation is not good, here can not say that the problem of people's brands, may be a single product has flaws, anyway, after changing back to the original plant, the water temperature meter is set again at 90 ° C and has not moved.

Shock absorber:

This is what makes me the most entangled, consulted a lot of car friends, but also learned a lot of chassis knowledge on the Internet, after doing the chassis, the suspension will definitely not be changed again, and finally weighed down on the KW CS, the price is appropriate, the performance is excellent. The only regret is that I did not go on the 3WAY, in the legend of the shock avoidance difficult to tune, afraid of the late difficult to achieve the ideal data, so chose 2WAY, but in the installation of the fortunate to know the KW engineer (without my consent here do not say the name), just say the suspension, the jianghu upload is too mysterious, really good tone, but to have a certain suspension knowledge, have a certain understanding of the vehicle attitude. Here are a few misunderstandings, interested friends can discuss privately.

Suspension is not the harder the better, to a certain critical value the harder the grip is worse.

Before adjusting the suspension, you must first figure out what compression and rebound (including high speed and low speed).

Suspension is just the tip of the iceberg for chassis tuning.

The current best result after the second upgrade is: 2 : 05 : 3 (the tire is the front 235TD rear 225AR-1)

It feels like it's not at its limit, and it should be around 2:03. Waiting for 03 may usher in the third upgrade, this time may be longer, first use the cup2 practice.

Some photos of playing with cars

Focus on track upgrade Golf GTI modification ideas to share

The first time off the track before their own strategy, the value is more conservative and not accurate, the first time to play after all for safety, but very meaningful, just start to play the car must understand a truth, your car is more powerful than you are too much, and when you are stronger than the car, then consider upgrading, changing cars.

Running track to learn to walk the line is the most basic, watch the GT1, POLO cup, other people's car video, the line will also be different due to the performance characteristics of the car, and now it will continue to optimize.

Focus on track upgrade Golf GTI modification ideas to share

Rear wheel of the AR-1, R18 40 225.

Focus on track upgrade Golf GTI modification ideas to share

The front wheel of R18 40 235, ran about 10 laps of TD, it is obvious that the inclination angle is not enough, the current front wheel inclination angle is about 2 °, the rear wheel is about 1.5 °, into the winter basically do not go down the track, tomorrow spring to adjust it, the key is now over the pit a bit rubbing the fenders, the suspension has been officially allowed to range the highest, wide body ... Brain shell pain.

Focus on track upgrade Golf GTI modification ideas to share
Focus on track upgrade Golf GTI modification ideas to share

The fog light was removed to make the brake guide, and later it was also dismantled, giving the oil cooling to make way.

Focus on track upgrade Golf GTI modification ideas to share

The fastest lap recorded on the track day, the data recorded in raceChrono was not screenshotted in a friend's phone.

Focus on track upgrade Golf GTI modification ideas to share

The lowest fuel consumption when driving a car, a first-class road and a small suburban road, are unbelievable, not instantaneous fuel consumption! Not instantaneous fuel consumption! Not instantaneous fuel consumption!

At present, the power program is purely original, and there may be riders who will say: "Just come to a program can add 100P." "Our thinking may be different, if you rush to upgrade the program may not even be able to run the track, the most important thing about the track is stability, the engine program changes a lot of things may not be able to keep up, heat dissipation, wave box, chassis, their own driving technology, etc., so my hardware will follow 300P to do, the last step to consider the miracle of the big thing."

Focus on track upgrade Golf GTI modification ideas to share

Third upgrade plan

The third upgrade may be primarily from

1. Power, to achieve 280-300P, will not be too high, must be stable (including some weight loss);

2. Chassis, replace adjustable swing arms, tie rods and the like, in hesitation on the wide body, the need for a more satisfactory chassis data (various angles, various distances, various centers), this aspect also needs more research and research;

3. Heat dissipation, engine, gearbox, power to improve the heat dissipation will inevitably be insufficient, to optimize the air guide mainly;

4. Brakes, on 370-380 discs and Endless or Dixcel or HAWK athletic leather.

Our small city plays this car less people, learning and exchange opportunities are not much, every time some domestic clubs come to play will get together to learn and communicate with others, but also welcome all the riders to discuss and communicate together, enjoy the joy of playing with the car.

THANKS

Owner: otssxing

Focus on track upgrade Golf GTI modification ideas to share

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