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Should I Gap My Pulstar Plugs?

Mechanic inspecting a spark plug

A spark plugs gap directly affects the tip temperature and the voltage necessary to fire the plug. Spark plugs traditionally leave the factory pre-gapped for their most popular application. However, a plug may fit hundreds of engines, from cars to golf carts.

Gapping the plugs to your engine’s specifications is important to prevent pre-ignition, detonation, fouling and poor fuel economy.

Even if the preset gap matches that required by your engine, it is always good practice to physically check the gap as it may have shifted during transportation (not all spark plugs are packaged in a way that protects the firing end ). 

Pulstar with PlasmaCore

Gap PlasmaCore plugs to the vehicle manufacturer's specifications, to a maximum of .055", using proper gapping technique.

Modified Vehicles

Proper gapping is especially essential in modified vehicles. The ignition process is affected by increased compression, fuel type, nitrous and high output ignition systems. A plug’s gap must be adjusted to account for these changes in engine conditions and ensure a successful ignition sequence. Opening the gap presents a larger spark to the air/fuel mixture, maximizing burn efficiency. However, after raising compression and installing a turbo, a smaller gap is required to ensure ignitability in the denser air/fuel mixture.