Browse
For Sale
Antiques CollectiblesApparelBaby Kids ItemsBooks， Movies And MusicElectronicsFree StuffGarden OutdoorHealth BeautyHome GoodsHome Improvement SuppliesMusical InstrumentsOffice SuppliesPet SuppliesSporting GoodsTicketToys GamesTransportationOthers
Jobs
AccountingAdministration & Office SupportAdvertising， Arts & MediaBanking & Financial ServicesCall Center & Customer ServiceCEO & General ManagementCommunity Services & DevelopmentConstructionConsulting & StrategyDesign & ArchitectureEducation & TrainingEngineeringFarming， Animals & ConservationGovernment & DefenseHealthcare & MedicalHospitality & TourismHuman Resources & RecruitmentInformation & Communication TechnologyInsuranceLegalManufacturing， Transport & LogisticsMarketing & CommunicationsMining， Resources & EnergyReal Estate & PropertyRetail & Consumer ProductsSalesScience & TechnologySelf EmploymentSport & RecreationTrades & ServicesOther
Property
BuyRent
Cars
Used CarsNew CarsOthers
Services
BusinessCraftsDesign And WebEventsHome ImprovementLegalLessonsPersonalPetsPhotographyRepair And Technical SupportWellnessWriting， Translation， And TranscriptionOthers
Community
Activities & GroupsArtists & MusiciansClasses & LessonsEventsFriendship & NetworkingLost & FoundRideshareSports TeamsVolunteersTravel & Travel PartnersSkills & Language SwapOther

What is the Principle of Air Deflectors and Spoilers?

1 Answers
MacChristopher
07/30/25 12:06am
The principle of air deflectors and spoilers is that the speed of airflow is inversely proportional to pressure. Automotive Air Deflector: To reduce the lift generated when a car is traveling at high speeds, automotive designers have made improvements to the car's exterior shape. They tilt the entire body forward and downward to create downward pressure on the front wheels, flatten the rear to reduce negative air pressure acting from the roof to the rear, preventing the rear wheels from lifting. Additionally, they install a downward-sloping connecting panel below the front bumper. Automotive Spoiler: An automotive spoiler refers to a component installed on the rear trunk lid of a car, resembling an inverted aircraft tail fin. Some cars are equipped with front spoilers, commonly known as air dams. Others have side skirts, which are also a type of spoiler. The rear spoiler is actually also referred to as a "car wing." On one hand, it adds a dynamic look to the car's appearance; on the other hand, its more important role is to effectively reduce the air resistance generated when the vehicle is traveling at high speeds.
Was this review help?
1
2
Share
More Forum Discussions

What does the EDC warning light mean?

edc warning light indicates a fault in the engine's electronic control system, prompting the owner to have it checked and repaired at a service center as soon as possible. EDC stands for Electric-Diesel-Control, which refers to the electronic control system for diesel injection. Its function is to electronically control the fuel injection system, enabling real-time control of fuel injection quantity and timing based on operating conditions. Below are specific scenarios when the EDC warning light illuminates: 1. The engine can start and run normally: This poses minimal harm to the engine and may be caused by damage to the high-voltage circuit, fuel injectors, or oxygen sensor, leading to increased fuel consumption. Typically, this indicates issues with the engine's high-voltage circuit, fuel injectors, or oxygen sensor circuit. First, check for water ingress or disconnection in components like high-voltage wires and spark plugs. 2. The engine fails to start normally: It is necessary to have the high-voltage wires, spark plugs, etc., inspected at a service center for faults. If the engine operates normally when starting the vehicle, it suggests minor damage to the battery or engine, and the issue may lie in the fuel or intake system. Check for excessive carbon buildup in the throttle body, whether the fuel pump is functioning correctly, or if the fuel filter is clogged.
10
3
Share

Is the JL478QEP engine a Blue Core engine?

JL478QEP is not a Blue Core engine. The Blue Core engine is a turbocharged engine, while the JL478QEP is a naturally aspirated engine. The JL478QEP engine is manufactured by Chongqing Changan Automobile and has been used in the Changan CS35. Additionally, Changan's first SUV was also equipped with this engine. The JL478QEP engine features DVVT (Dual Variable Valve Timing) technology for both intake and exhaust, delivering a power output of 92kW at 6000rpm and a torque of 160Nm between 4000-5000rpm. It is paired with either a 5-speed manual transmission or a 4-speed automatic transmission with manual mode. The Changan CS35 equipped with the JL478QEP engine also includes an engine start-stop system, controlled by the ECON button on the left side of the driver's seat, which further reduces fuel consumption for the 1.6L model. The JL478QEP engine boasts three key advantages: 'Power, Clean, Quiet.' It offers high reliability, high power, and high torque at low speeds. Equipped with Bosch's latest start-stop system, it saves fuel and reduces CO2 emissions. The engine's idle noise is only 38.5 decibels, which is below the industry average of 45 decibels.
2
5
Share

What is Dynapro Tire?

Dynapro is a flagship SUV tire series from Hankook. The advantages of Dynapro tires include strong wet performance, low noise, and being a low rolling resistance tire. Dynapro emphasizes tire handling, maintaining durability and excellent tire performance even in harsh environments. It can sustain tire performance in adverse weather and road conditions, with relatively low noise and vibration on different road surfaces, thereby improving fuel efficiency. Among the Dynapro series, RA23 and RA35 are particularly popular in the market. Below are the detailed introductions: 1. HP-RA23: This is a quiet and comfortable urban SUV tire, suitable for wheel sizes ranging from 15 to 18 inches, covering most urban SUVs. 2. HL2-RA35: This is a comprehensive high-performance urban SUV tire that achieves a good balance between handling, comfort, and quietness. It is available in three wheel sizes: 16 to 18 inches, with a smaller range of fitment compared to RA23, but it is more focused on medium to large SUV models.
10
1
Share

What Causes No Clicking Sound and Failure to Start When Turning the Key?

The reasons for no clicking sound and failure to start when turning the key are: 1. The steering wheel is locked: If the steering wheel wasn't straightened after turning off the engine, the vehicle may enter sleep mode and lock the steering wheel, preventing the key from turning and causing startup failure. Try turning the steering wheel while turning the key to unlock it. 2. Insufficient fuel: Due to abnormal fuel pump supply, check if the fuel gauge is in the red zone. The solution is to refuel. 3. Faulty fuel injector(s): This can cause weak engine startup or failure to start, with significant shaking at idle. It not only wastes fuel but may also affect engine lifespan. The solution is to inspect each fuel injector individually and replace if necessary. New fuel injectors require computer pairing after installation.
5
2
Share

What is the S6 car?

The BYD S6 is BYD's first SUV, positioned as a mid-to-high-end independent SUV. Its dimensions are 4810/1855/1680mm in length, width, and height respectively, with a wheelbase of 2720mm, making it larger in size compared to other SUVs in its class. A minimum ground clearance of 190mm ensures excellent off-road performance. BYD S6 Powertrain: The powertrain is expected to be similar to that of the M6 model. Paired with the four-speed automatic transmission is likely Mitsubishi's 4G69 2.4L engine, delivering a maximum power of 118kW (160 horsepower)/5800rpm and a maximum torque of 215Nm/3500-4500rpm. The 2.0L engine uses BYD's self-developed BYD483QB model, with maximum power and torque of 103kW (140 horsepower)/6000rpm and 186Nm/4000-4500rpm, respectively. The BYD S6's automatic transmission with manual shift function adopts an S-shaped shift chute, consistent with the design of the BYD M6's transmission panel, including the serpentine shift chute, ECT SNOW mode, and SHIFT LOCK button, all identical. The design of the shift knob with wood grain is also the same.
8
5
Share

Is it necessary to replace a faulty pressure bearing?

It must be replaced. Otherwise, it will affect driving safety and pose significant safety hazards. The specific details are as follows: 1. Major safety hazards: If not replaced, there will be abnormal noises during driving, slight body shaking, and minor steering deviation. At high speeds, this presents a considerable safety risk. 2. Pressure bearing: The pressure bearing, short for axial pressure bearing, bears axial forces. It is a specialized front axle vertical shaft bearing for oil-injected pressure bearing vehicles, allowing lubricant to be added to the ball body through an oil nozzle, thereby extending the bearing's lifespan.
9
0
Share
Trending Ranking
What is the emission standard of Honda Civic?
What does aoff mean on a car?
What to Do If You Lose Your Teana Car Key?
4
What is China V equivalent to?
5
What Causes Steering Wheel Abnormal Noises?
6
What are the differences between the Volkswagen Tiguan L and the Volkswagen Tiguan?
7
What brand is Rover?
8
What are the symptoms of CVT transmission slipping?
9
What to Do When p0087 Fuel Rail System Pressure Is Too Low?
10
What is the relationship between Piaggio and Aprilia?
More Forum Discussions

Can You Still Drive When the SVS Light Comes On in a Diesel Vehicle?

13
4
1

What are the differences between DOT3 and DOT4?

2
3
1

Is AC ON or OFF?

12
1
1

What does NEDC range mean?

17
4
1
About Us
Terms of Use
Privacy Policy
Help
Contact Us
FAQ
Cookie
Cookie Policy
Cookie Settings
© 2025 Servanan International Pte. Ltd.