10 best spark plugs
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On the correct choice of spark plugs depends on the many parameters of vehicle operation, in particular speed of movement and acceleration, fuel consumption. Manufacturer's recommended type and size of candles is specified in the passport of the vehicle. But besides the basic characteristics of details, you should pay attention to the materials of manufacture, brand name, and the number of electrodes.
One of the most important indicators is the heat rating. It determines the rate of cooling of the candle during use. A value from 11 to 14 says that it cools slowly, therefore, designed for installation in cars travelling short distances or use low-octane gasoline. For more intense operation of the motor is to buy a candle with a glow more than 17.
It should take into account the thread length of the product. It must match the manufacturer's recommended vehicle settings. Distinguish between short, medium and long candles that have a length of up to 12, 19 and 25 mm, respectively.
The size of the spark and the required voltage depends on the magnitude of the gap between the electrodes. Wear as candles, this distance could increase, which would entail an additional load on the ignition coil. The optimal rate of clearance is also indicated in the passport. I advise you to purchase product with a value 0.1 mm less than the recommended.
For the life of the candle is affected by the number of electrodes. With their large number of flame straight into the space of the combustion chamber, which increases power and saves fuel. However, if you use poor quality gasoline multielectrode spark may not always work, so the choice of the product should follow the manufacturer's recommendations car.
Best Nickel spark plug
Such models are most common and can be installed in vehicles with any type of engine. Low cost and resistance to high temperatures allows you to use them for a long time.
Husqvarna HQT-10
Stable spark model ensures high durability of the electrodes, as well as protection against corrosion and varnish. The rapid spread of the flame front ensures complete combustion of the fuel-air mixture and fuel economy.
Heat rating of 17, the torque angle is 90 degrees. This allows you to set the detail to the cars engines that are regularly subjected to high loads. Flat sealing gasket and a thread pitch of 1.25 mm contribute to secure the candle.
Advantages:
- corrosion-resistant coating;
- durability;
- stable ignition;
- secure clamping;
- high heat rating.
Disadvantages:
- a small length of thread.
Husqvarna HQT-10 can be used in almost any conditions. It is suitable for most cars and favorably differs from low cost.
Denso 3445 XU22HDR9
Stability models provide a metal cap around the insulator, resistors and protected from external influences junction. It significantly reduces the risk of failure of electronic equipment, minimize the possibility of damage to the electrode and extends the life of the candle.
Heat rating details is 22, the torque angle is 90°. Large heat range and maintaining a constant operating temperature to prevent overheating and contamination of the electrodes.
Advantages:
- fast heat dissipation;
- durable cap;
- low cost;
- versatility.
Disadvantages:
- the complexity of the installation.
Denso 3445 recommended for purchase to owners of large or active operating cars. Reliable solution if you regularly travel long distances.
Bosch FR7SE
The core of the model is covered with corrosion-resistant chrome-Nickel sheath ensures stable operation in any climatic conditions. SAE-mounting with internal thread connection ensures fast installation without specialized tools.
Thread size — M14, the electrode gap is 1.1 mm. long threaded portion contributes to a more secure part, and a suppression resistor improves the functioning of systems of ignition, navigation, fuel injection and ABS.
Advantages:
- convenient installation;
- durability;
- stable operation;
- the presence of the resistor;
- low price.
Disadvantages:
- the high fuel consumption.
Bosch FR7SE can be installed on cars operated in difficult weather conditions. Beautiful, although not the most economical choice for regions with cold climate.
NGK 4339 DCPR8E
The main features of this candle should be attributed to the presence of the resistor. It limits the spark current at the time of starting the engine. This solution prevents the burnout of the Central electrode and reduces the risk of interference.
Thread size — M12, the interelectrode gap is 0.8 mm. Short projecting part of the insulator of the spark promotes more effective heat dissipation, which allows its use in vehicles exposed to high load.
Advantages:
- versatility;
- the presence of the resistor;
- quick installation;
- stable ignition;
- low price.
Disadvantages:
- a short operational life.
NGK 4339 DCPR8E should buy car owners of production companies Chevrolet, Fiat and Lancia.
The best iridium spark plugs
Such models are characterized by high strength and low fuel consumption during operation. They can be used under all temperature conditions, however, are much more expensive than their Nickel and copper analogues.
Bosch V6SII3328
Due to the presence of weld Deposit of the alloy of platinum on the Central electrode the model has a high level of resistance to wear and impact of external factors. This prolongs service life and ensures the stability of combustion of a candle.
The torque angle is 90 degree, thread pitch — 1.25 mm. Seal with fixing parts is made using flat strip. The distance between the electrodes of 0.7 mm provides a high rate of fire and stability.
Advantages:
- long service life;
- protection against rust;
- high efficiency;
- reliable fixation;
- long thread.
Disadvantages:
- high price.
Bosch V6SII3328 can be used in conditions of high humidity or low temperatures. The right choice for riding in the city.
Denso FK20HR11
The main feature of the model is to support the technology super ignition (SIP). Candle has two ultra-slim and wear-resistant electrodes — the Central and grounding. It provides high-quality spark, stable combustion and improved performance of the engine.
Heat rating — 20, thread length 26.5 mm Detail capable of withstanding extremely high temperature without deterioration, so it can be installed on vehicles subject to heavy use.
Advantages:
- support SIP;
- long service life;
- the presence of the resistor;
- quick installation.
Disadvantages:
- delay before ignition.
Denso FK20HR11 should buy to ensure a stable combustion in all conditions. A great choice for SUV owners and lovers of long trips.
Brisk Premium P5 RR15 YIR-1
Simultaneous use of iridium contact center electrode and a copper core provides reduced external spark quenching effect during cold start. This increases the capacity of the candle and increases the replacement interval to 100,000 miles.
Heat rating — 15, thread length is 25 mm. Conical seal provides reliable fastening of a candle, and the presence of resistor ensures protection from interference and damage of the electrode.
Advantages:
- stable operation;
- fast ignition;
- made insulator;
- reliable fixation;
- a long service life.
Disadvantages:
- susceptible to contamination.
Brisk Premium P5 is designed for installation in vehicles, characterized by a long interval between replacements of candles. Economical solution for long-term use.
Best copper spark plugs
The peculiarity of these models is the efficiency. These candles are extremely easy to install and does not require special maintenance, making them a good investment for comfortable use over long periods of time.
NGK BUR9EQ
Model features trivalent metal plating, which ensures a reliable corrosion protection and protects the electrode from mechanical damage. This prolongs the life of the candle and ensures stable combustion in all conditions.
The thread diameter is 21 mm, the distance between the electrodes is 1.4 mm. Ceramic insulator corrugated shape and a copper core promotes more efficient heat removal and prevent the formation of sparks outside the area of the electrodes.
Advantages:
- protection against rust;
- stable combustion;
- durable cap;
- durability;
- quick heat dissipation.
Disadvantages:
- high price.
Spark plugs NGK BUR9EQ recommended to install in cars which are operated in conditions of high humidity or freezing temperatures, mostly in regions with cold climate.
AWM QF3SR8
The model is characterized by rapid ignition and stable combustion under all weather conditions or inadequate charge of the battery. Protection of contacts and the ability to adjust the spark gap to extend the life span of candles and increase the efficiency of its work.
The distance between the electrodes is 0.8 mm, thread length 19 mm. Increased endurance and no risk of prisypanija details after a longer time, ensure economical fuel consumption and increasing engine power.
Advantages:
- durability;
- stable combustion;
- reliable start-up;
- simple installation;
- low price.
Disadvantages:
- increased fuel consumption.
AWM QF3SR8 should buy for installation in a vehicle traveling in the city. Affordable solution for all-weather operation.
LR7YC DDE
As the seal used here is the plastic washer, not responsive to changes in temperature. It provides reliable fixation of the candle, regardless of the load on the engine.
Heat rating is 17, thread size — M14. Durable cap and resistor securely protect the electrode from damage, allowing you to extend the service life of the part. Rapid heat dissipation prevents overheating or increased fuel consumption.
Advantages:
- quick installation;
- thermostability;
- long service life;
- low price.
Disadvantages:
- a short thread.
LR7YC DDE is designed for installation in vehicles with four-stroke engines. Affordable and durable choice for owners of Honda, Lifan, Mitsubishi and other "Asians".
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