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Adjusting Spark Plug Gap For Low And High Boost

Why Do You Gap Spark Plugs For Boost?

When a engine has forced induction, aka *(turbocharger,supercharger or blower) it increases the cylinder pressure and can cause the spark to blow out when the spark plug gap is too big. Too small of a spark plug gap can cause the engine to run rough and have inconsistent rpm's. It is important to know the least amount to gap the spark plugs as well as the greatest. Choosing the right spark plug is also very important. I run NGK Spark Plugs.

How Do I Gap A Spark Plug?

You gap a spark plug by using a special tool called a spark plug gap gauge tool. You can also use another tool called a feeler gauge. These tools allow you to slide a precision sized piece of metal in between the center electrode and the ground electrode of the spark plug to measures the gap space.