This uncontrolled detonation can lead to serious engine damage and even underhood fire.Д¬omplete burn-through is not the only problem to consider when looking at spark plug wire heat shields. This could cause you to lose a race or end up stuck on the side of the road - not to mention the not so small fact that it could also potentially cause engine detonation or backfire situation due to a buildup of unburnt fuel in various cylinders and intake runners. Second, when a spark plug boot melts, it can create an ignition misfire/no-fire problem.

First, you have the cost of replacing the wires, and in race applications could easily cost more than $100. Types of Spark Plug Damage and Why Spark Plug Wire Heat Shields WorkД«efore figuring out the best spark plug wire and spark plug boot protectors for your street or racecar, letвЂ™s look at the types of potential damage and associated costs when hot exhaust and spark plug wires share close quarters. This article will help you pick the best spark plug wire and spark plug boot heat shields and sleeves, guiding you through the maze of protection options so you can make a choice that is both cost-effective and right for you. Almost anyone with headers on their car, truck or racecar has experienced burned spark plug wires or has melted through a spark plug boot or two.

How to install spark plug boots