Your vehicle won't run without a properly working ignition coil unless it has a diesel engine that depends on compression to ignite the fuel/air mixture or a vintage car that uses a magneto ignition system. You need the ignition coil to convert the battery's low voltage into thousands of volts, which are required to produce an electric spark in the spark plugs to ignite the fuel. Without it, you would have to push your car for it to move.
What is an ignition coil made of?
Early ignition coils were made from varnish and paper that has insulated high-voltage windings. These were put inside a draw-steel can and filled with asphalt or oil to provide insulation and protect it from moisture. Nowadays, the coils in modern vehicles are cast in filled epoxy resins that seep into any voids within the winding.
How to select the right ignition coil for your car
If you are not looking for a component that will enhance your performance, you can get a stock replacement ignition coil to replace an old or busted one. But, there are also coils that are made for specific road use. These are street or strip coils and race only coils. The street coils are normally rated from 35,000 to 55,000 volts. These coils can give a significantly greater performance than stock ignition coils. They provide easier and quicker starting, better throttle response, and improved gas mileage because you are igniting more fuel than before and producing more power through a more complete combustion of the air-fuel mixture.
Another thing that will help you choose the best ignition coil is by knowing what kind of distributor your car has. This will help you minimize your choices for a coil. If you have an HEI type of distributor, then should only buy an ignition coil that can fit within the distributor cap or one that entirely replaces the distributor cap. Externally mounted coils for
"points style distributors" are the kind of coils that you can find the most in the market. If your ignition system doesn't have a distributor, you will still need an ignition coil for it to operate.
So, determine the use of your vehicle and what type of distributor you have to be able to choose the right ignition coil for your ride.
How Much Does It Cost?
You should be able to find top-quality ignition coils within a price range of about 20 to over 100 USD, depending on whether you're buying them individually or in packs of 3, 6, 8, or 10.