How to change the speed of an electric car? Popular topics and modification guides on the Internet in the past 10 days
Recently, the topic of electric vehicle modification has once again become a hot topic on social platforms. With the implementation of the new national standard policy and the increase in user demand for performance, how to safely and legally increase the speed of electric vehicles has become a core issue for consumers. The following is a modification guide and industry dynamics analysis based on the hot data of the entire network in the past 10 days.
1. Top 5 hot topics on electric vehicle modification on the entire network

| Ranking | topic | amount of discussion | Platform popularity |
|---|---|---|---|
| 1 | Tutorial on lifting speed limits for new national standard electric vehicles | 285,000 | Douyin/Bilibili |
| 2 | Modified battery safety hazard incident | 192,000 | Weibo/Zhihu |
| 3 | Analysis of the relationship between motor power and speed | 157,000 | Tieba/Kuaishou |
| 4 | Traffic police from various places investigate cases of modified electric vehicles | 123,000 | Toutiao/Douyin |
| 5 | Third-party speed regulator evaluation and comparison | 98,000 | Bilibili/Xiaohongshu |
2. Comparison of the main methods of speed modification of electric vehicles
| Modification method | Speed increase range | Cost | risk level | legitimacy |
|---|---|---|---|---|
| Lift the speed limit line | 5-10km/h | 0-50 yuan | ★★★ | Illegal |
| Replace controller | 15-25km/h | 200-800 yuan | ★★★★ | Illegal |
| Upgrade motor | 20-30km/h | 500-1500 yuan | ★★★ | Filing required |
| Replace battery pack | 8-15km/h | 800-3000 yuan | ★★★★★ | Partially illegal |
| Flash ECU program | 10-20km/h | 300-1200 yuan | ★★★ | gray area |
3. Warnings on recent hot events
1.Hangzhou electric vehicle spontaneous combustion accident: On August 5, a modified car of a certain brand caught fire due to battery overload. The video was played more than 20 million times in a single day.
2.Shenzhen Special Investigation and Punishment Action: On August 8, 17 illegal modification shops were seized, and the maximum speed of the vehicles involved reached 75km/h.
3.Internet celebrity blogger actually tested the car overturning: A certain platform UP owner "Zhisu Lao Zhang" was injured when he lost control of his modified car. Related videos triggered heated discussions about the safety of modified cars.
4. Legal speed-up suggestions
1.Choose high-end models: Choose an electric motorcycle with a higher factory design speed (a driver’s license is required), such as the Yadi DE3, which can reach a top speed of 53km/h.
2.Lightweight modification: Reducing vehicle weight by replacing carbon fiber parts can improve acceleration performance by 5-8% (original certification mark must be retained).
3.Tire upgrade: Replacing low rolling resistance tires can increase the cruising speed by 3-5km/h according to actual measurements, and is completely legal.
4.Regular maintenance: Keep the chain lubricated and the bearings smooth, which can effectively reduce power loss.
5. Reminders from Industry Experts
The latest report from the Electric Vehicle Research Institute of Tsinghua University shows that the accident rate of illegally modified vehicles is 4.7 times that of standard vehicles, and 90% of insurance companies refuse to cover accidents involving modified vehicles. It is recommended that users give priority to choosing speed-increasing accessories that comply with 3C certification, and perform compliant modifications under the guidance of professional institutions.
Note: The statistical period of the data in this article is from August 1 to August 10, 2023. The data sources include Weibo, Douyin, Baidu Index and other platforms. Modification may violate Article 16 of the Road Traffic Safety Law. Users are advised to carefully assess the legal risks.
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