How Do Spark Plugs Affect Car Performance and Torque?

Out of approximately 30,000 components that make up a car, we have chosen in this article to discuss one small-sized part that plays an extremely important role. It determines the power and torque of the car’s engine and significantly influences the smooth rotation of the engine. What is this component? It’s the spark plugs or ignition plugs.

Spark plugs are a crucial part without which the combustion process cannot occur. They generate the spark needed to initiate the combustion process inside the engine cylinders, starting the engine’s rotation and generating the necessary power and torque to move the car.

Impact of Spark Plugs on Power and Torque

There are several reasons for a decrease in engine torque and power, but one of the most common issues in this case is the damage to the car’s ignition spark plugs or the significant carbon buildup on them after extended use without cleaning or replacement. In this article, we will explain the combustion process that propels the car through simple steps:

  1. Fuel is pumped from the tank to the filter for purification before moving to the injectors in the engine.
  2. Injectors spray a measured amount of fuel into each cylinder.
  3. Fuel mixes with air inside the cylinder.
  4. Coils increase the electrical voltage output from the battery.
  5. The electrical voltage is directed to the spark plugs.
  6. The spark plugs generate the necessary spark for the required combustion inside the cylinder.
  7. The engine starts rotating and generates power and torque.
  8. This power is directed from the engine to the wheels.
  9. The car starts moving.

As we can see in these simple yet precise steps, the role of these spark plugs is essential in the car’s operation and movement. Any weakness in them results in disruptions in the quantity of burned fuel, whether it decreases or increases. Most often, their damage leads to increased fuel consumption.

It should be noted that using high-quality, original spark plugs plays a role in utilizing the full horsepower specified by the manufacturer. In some cases, they may even increase it by up to 1%. This type has a high tolerance for high temperatures and pressure, operating quickly in sync with the engine’s revolutions.

Types of Spark Plugs in Cars

In general, when changing spark plugs, it is advisable to rely on the type recommended by the manufacturer. Efficiency varies from one type to another, which can affect the car’s performance. The following are the main types of spark plugs and the differences between them:

1. Copper

This type is made of solid copper, with the central electrode (the electrode that generates the spark) made of solid copper and coated with nickel alloys. Unlike other types, this type requires a higher electrical voltage to generate the ignition spark. Copper spark plugs were used in older cars that did not have high electrical requirements, unlike modern cars. If used in today’s cars, they will not last long because nickel alloys are less hard, and they accumulate a lot of carbon.

2. Platinum

The copper and platinum types are similar in shape and design, but the difference lies in the central electrode. Instead of nickel alloys, it contains platinum discs. These discs are characterized by their durability and longevity, carrying higher temperatures. They can last up to 160,000 km, and the carbon buildup on them is generally less than copper.

3. Iridium

This type is widely used by car manufacturers because iridium is 8 times stronger than platinum. This means it provides higher efficiency and better tolerance for pressure and temperatures. Although this type is somewhat expensive, you get value for the money, as it maintains its effectiveness for a longer period, up to 25% longer than platinum.

How to Maintain the Safety of Car Spark Plugs?

To ensure their performance and safety for the longest possible period, make sure to clean and replace them when needed or according to the recommended schedule by your car’s manufacturer. Do not neglect their inspection, adjustment, and necessary maintenance from time to time.

Common Questions:

  1. Do Spark Plugs Cause Car Jerking?

    Any malfunction in this part may affect performance, resulting in jerking during driving.
  2. Do Spark Plugs Cause Ticking Noises?

    One of the most common reasons for a ticking sound in the car during driving is damage to the ignition spark plugs.
  3. How Many Spark Plugs in a Car?

    The answer to this question depends on the number of cylinders in your car’s engine. Each cylinder is connected to one spark plug, so if the engine has 4 cylinders, the car has 4 spark plugs.

Make sure to regularly visit maintenance centers for comprehensive check-ups of the car and ensure its safety from time to time.

Back to top button