raykessler

Whats the difference between a hot, cold, and medium glow plug???

i guess you would use a hotter one for winter and a colder one for summer, but i really dont know

ntrospeed04

one glows hot one glows cooler and one glows in between...i heard the hotter is sort of a "high performance" plug?

mecky33

A colder plug is used for lower content nitro, and a medium for mid nitro and hot is used for high nitro content. In some cases, you would use a colder plug with a larger engine and higher nitro. The heat of a plug is pretty much the timing system in a nitro. The hotter a plug the sooner it will detonate. If you get to hot a plug in your system it will cause predetonation and loss of power, ulitmately ruining an engine.

raykessler

so for lets say.... the Genesis im gettin with a .46 engine, that im probably gonna be running 20% nitro in i should use a cold or medium plug... right

mecky33

with the Genesis, you should run 30 percent since its a big block, and you would run a cold plug and maybe a warm.