What plugs should I use if I am running Nitrous?
Nitrous Oxide is an efficient means of getting more oxygen into the combustion chamber. Initially the
N2O injection will cool the incoming charge due to the energy expended on vaporization into the air fuel mixture. However, do to the dramatic increase in power output, the sustained use of N2O increases cylinder temperatures to the point you may require a spark plug one or two heat ranges colder. If the nitrous is used only for very short bursts, (less than 10 seconds), then the standard plug can likely be used with no spark plug heat change necessary. It is not suggested that platinum spark plugs be used with nitrous systems. HOWEVER, we have had no reports of any problems using Iridium plugs with nitrous injection.