Can a fine wire plug be used as a spark plug?
A wider gap increases the load on the ignition system, demanding higher voltage. Replacing this with a fine-wire plug would allow running a decent plug gap and still offer the potential for improved combustion. The copper core does transfer a significant amount of heat.
What kind of spark plugs have the same reach?
“As an example, an Autolite copper 105 versus an XP Iridium 105 will have identical ceramic temperatures and the carbon burn off will be the same,” says Reeves. A spark plug’s reach is defined as the length of the threads.
Why are spark plugs not supposed to be anti seize?
Spark plug companies don’t recommend anti-seize on threads because it lowers the torque required to install the plug. Torquing the plugs to the published spec with anti-seize overtorques the plug which potentially could break the internal seal between the insulator and the shell, creating a leak path.
What was the cause of the spark plug meltdown?
This is an Autolite race plug that is also configured with a side gap. (Right) This melted plug was destroyed when the nitrous system went lean. While it is a platinum plug – that had little to do with its failure. The plug melted because of excessive heat in the chamber.
A wider gap increases the load on the ignition system, demanding higher voltage. Replacing this with a fine-wire plug would allow running a decent plug gap and still offer the potential for improved combustion. The copper core does transfer a significant amount of heat.
“As an example, an Autolite copper 105 versus an XP Iridium 105 will have identical ceramic temperatures and the carbon burn off will be the same,” says Reeves. A spark plug’s reach is defined as the length of the threads.
This is an Autolite race plug that is also configured with a side gap. (Right) This melted plug was destroyed when the nitrous system went lean. While it is a platinum plug – that had little to do with its failure. The plug melted because of excessive heat in the chamber.
Spark plug companies don’t recommend anti-seize on threads because it lowers the torque required to install the plug. Torquing the plugs to the published spec with anti-seize overtorques the plug which potentially could break the internal seal between the insulator and the shell, creating a leak path.