What is the purpose of a car front splitter?
2 Answers
In modified cars, the front splitter of some performance vehicles serves an aerodynamic function by disrupting airflow. However, for most vehicles, the front splitter is primarily a decorative addition that enhances the car's appearance. That said, installing a front splitter can make the car more prone to scraping when going over speed bumps or entering underground parking garages. In car modifications, key exterior upgrades include installing full body kits, front and rear spoilers, rear wings, changing the body color, lowering the chassis, and replacing wheels. When a car is traveling at speeds above 60 mph, about 80% of the engine's power is used to overcome wind resistance. A front splitter reduces the amount of air entering underneath the car, thereby decreasing forward drag and increasing downforce. In many factory-made cars, considering ground clearance and the likelihood of frequent scrapes, this part is usually made of soft rubber material. The more forward its position, the better its drag reduction effect and the greater the improvement in front-end downforce. However, the angle of its lower edge should not be too steep. The functions of a car front splitter are as follows: In my opinion, the practical benefits of modifying a front splitter are minimal—it mainly adds a bit of personality to the car's appearance. To avoid getting in trouble with traffic police, it's best not to modify it. Vehicles with lightly modified front splitters still need to remove them for annual inspections, and such modifications may also affect insurance claims, often putting owners at a disadvantage. First and foremost, it's important to understand that changes such as altering the car's color, modifying the engine, or changing the external structure of the vehicle generally require approval from the transportation department to be considered legal. Depending on the situation, these modifications may also require updating the vehicle registration. According to the newly implemented "Motor Vehicle Inspection Regulations," certain car modifications are now permitted and even relaxed, including installing roof racks, side steps, modifying the front grille, and changing wheels. However, these modifications must not alter the vehicle's length or width. Therefore, modifying the front splitter remains illegal.
The front splitter primarily improves airflow direction and increases downforce, especially at high speeds, enhancing the car's grip. I've experienced significantly improved stability during high-speed cornering, particularly when driving above 150 km/h where the steering feels more planted. Some track enthusiasts believe that a front splitter offers better value for money than suspension modifications, as a carbon fiber front splitter can be acquired for just a few thousand yuan. However, the drawbacks are also evident—it reduces ground clearance in urban areas, and some underground garage ramps may scrape the splitter. During installation, it's crucial to ensure the bracket's strength to prevent cracking on bumpy roads.
