[jim_howard_pdx]

Thank you Eric! Eric is one of my favorite guys here at mustang works. Just look at his times and his rides and you know this guy loves to shake and bake.

But today only Eric, you get my "sleeping on the job" award.

ALL racing plugs are COLD plugs.

When we discuss the heat range of a plug, we are really discussing the overall length the engineers build into the center electrode to absorb combustion chamber heat and contribute to the ignition event.

To simplify this and put it in an example for everyone, a poor overall cylinder pressure engine with poor quench is going to need a HOT plug to fire the poor mixture the stock engine produces.

So factory stock engines typically have HOT plugs, plugs with LONG insulators to heat up their center electrodes.

High performance plugs have dramatically shorter insulators to keep the center electrode "cool" so they will not contribute to predetonation or detonation effects on high dynamic compression race engines.

And that is all I plan to say about plug "temperature".