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When it comes to a car’s ignition system, spark plug wires play a significant role. It is not like they would increase the horsepower by an incredible amount. Still, they are responsible for the performance scale.
Well, there are many diversities in plug wires. They vary from 2 mm to 12 mm range. But not all of them are useful on a regular basis. 8mm, 10mm are the most popular ones. Then which one to use? Let’s have a discussion about 8mm vs 10mm spark plug wires.
In this article, you will learn about their differences and specific functions that can make up or downgrade performance.
A Short Table: 8mm Vs 10mm Spark Plug Wires
A table will help you to understand their differences in a short time.
|Topic||8mm Wires||10mm Wires|
|Insulation layer||Thin compared to 10mm wires.||Pretty thick.|
|Non-Conductive materials||Medium non-conductive materials are used in the coatings.||Very high non-conductive materials are used.|
|Core||Carbon or spiral core.||Solid or spiral core.|
|Providing power to the plugs||Medium ability to provide powers.||Maximum power can be provided through these wires.|
|Cost||Lower than 10mm wires.||Not very high if you do not use spiral ones.|
|Noises||Make pretty low noises.||Make loud noises compare to 8mm wires.|
|Usage||It can be used in daily driving cars.||It can be used in racing cars or cargo trucks.|
8mm Spark Plug Wires
What does it mean by 8mm wires? It is related to the thickness of plug wires. The diameter is about 8mm thick. Different materials form many layers from the core to the outside of the wire. The most outer layer is made of a silicon jacket which can handle up to 600 F (Fahrenheit).
There is another layer of insulation beneath it, and that is also made of high-density silicon. It can handle harsh conditions like high pressure and temperature. The most inner part is the core. It is the crucial factor here.
A proper conductive core with minimum thickness is used to pass through all types of electric signals for sparks. Most of the cars use the spiral core as it can deliver enough voltage to your vehicle.
Some EMI (electromagnetic interference) or RFI (radio frequency interference) suppression layer covers the core. On the other hand, those layers are covered by conductive graphite coatings. Having this kind of structure makes them more durable to use in your car.
8mm wires have a massive range of applications. Many manufacturers consider these types of wires to be universal for a daily driver. That is because, for a regular car, EMI, RFI, suppression layers are critical. Therefore, 8mm sparks wires are lightweight and can give you the optimum performance to your daily drive.
Pros and Cons Of 8mm Wires
Although 8mm wires are very popular, there are some cons and pros, and they are very eye-catching. Let us show you:
The installation of these wires is pretty straightforward. They block minimal space in the engine. As carbon or spiral core is used, they are very easy to replace according to availability. You would find very little noise while you use 8mm wires. These are very durable and can improve the engine’s health.
The wires will be needed to replace more often if you use a carbon core. But the spiral cores increase the resistance and surpass to provide more power to the engine. If the car’s engine is overheated sometimes, it cannot handle much heat then.
10mm Plug Wires
The diameter of these wires is 10 millimeters. The core size of the 10mm wires is the same as 8mm wires. But they use solid cores to ensure low resistance to the electric signal.
You might be thinking, what makes them different from each other? Well, it’s the other coating materials and insulations. The most outer layer is silicon which is thicker than usual. Beneath the silicon jacket, there is a high-density silicon layer along with high non-conductive coatings.
This kind of insulation layer can handle 800F to 1200F at any condition. The EMI and RFI suppression layer is also thicker to avoid the possibility of any type of interference. It is the main feature of 10mm plug wires.
These types of wires are used for high-performance applications racing cars, heavy-duty cargo trucks, etcetera. In these engines, you have to ensure high voltage with a low resistance to make constant fuel ignition possible.
Pros and Cons Of 10mm Wires
Let us show you some pros and cons of these wires for a better understanding of their capabilities.
As the wires have a very thick layer of coatings, they can ensure maximum heat protection. These are perfect for heavy-duty jobs because pf providing higher voltage for the ignition than usual ones. You do not have to worry about their replacement now and then.
Because of the thickness, these wires occupy higher space in the engine room than others. You would notice much noise while running the engine. Again, these types of wires are not applicable for a regular driver. If you want to use spiral core wires rather than solid core, they are pretty expensive nowadays.
Can 7mm Be An Alternative?
You cannot use 7mm wires as an alternative to 10mm wires. That is because 7mm wires are pretty light and cannot handle much heat and provide enough power to the plugs. On the other hand, you can use instead of 8mm wires.
The coating and core’s property are pretty similar between them, and your car will be lightweight than before. Therefore, it would be a suitable replacement.
Whether it’s 8mm or 10mm wires that you use, remember to always get the best quality spark plug wires that suit your engine’s needs. We hope you are clear about the topic of 8mm vs 10mm spark plug wires. We wish you good luck in choosing the best variant for your car!