Understanding ignition coil packs

The coil will draw power from your battery then boost it, delivering a hotter spark that will ignite your fuel and air mixture more efficiently. This results in better combustion and increased horsepower.

How do coil packs work?

These are made from thin copper wires that have been rolled around thousands of times and housed in a small metal canister. They may be small, but they pack a lot of power, taking the 12-volt charge from your battery and amplifying it up to 45,000 volts – which are then supplied to your engine's spark plugs.

It is better to install these coils directly over the spark plugs. This way you avoid the use of long high-voltage cables that are bulky, can become damaged and are subject to radio frequency interference.

What happens when it deteriorates?

When your coil begins to deteriorate, it will deliver less voltage to the spark plug, resulting in a weaker fire. This will often mean misfiring, which puts pressure on the crankshaft, and you will have noticeably reduced performance as you won’t have the optimised heat and air-flow ratio.

It is not advisable to continue driving if you notice any of these symptoms, as it can cause damage to major components in your engine. In most instances, you will lose a cylinder, which means that your car will be underpowered and unbalanced, therefore not safe. It is advisable to have a replacement on hand in case of emergency.

Browse our range of parts and accessories

We stock individual packs or complete kits to suit a wide range of makes and vehicle models, plus our team of experts is here to help find the right solution for you. We also have accessories like spark plug wires so that you can be prepared for any situation.

Pro Speed has the full range of parts and accessories to suit all performance vehicles. Our stock comes from leading suppliers worldwide, and has been engineered to be robust, safe and reliable under race conditions. Some of our options include:

• Battery accessories: including solid and lightweight battery housings, remote cable kits, battery relocation kits, replacement terminals and tie-downs.
• Electronic boost control kits: Full digital displays, the latest technologies and innovations and advanced sensors that deliver the most reliable and accurate readings at all times.

Want customised solutions or assistance in getting the most out of your performance vehicle? Our team is on hand to assist, so call us at Pro Speed Racing today.