At what point, modification wise, does it become better to have colder spark plugs? I've heard someting about running a step colder plugs on n/a motors for better power and much colder plugs on FI motors.

 

I have the ZEX Spark plugs that I bought when I got my nitrous kit. Don't really know if they did any or do anything to help performance, but figured..why not? Can't hurt anything. rolleyes.gif tongue.gif

 

usually with nitrous, you go 1 or 2 ranges colder.

Usually with Turbo or Superchargers, you go 2 to 4 ranges colder.

If you go too cold, you will have just as many problems as stock plugs that are too hot.

Usuall, plugs foul if they are too cold, and you have detonation problems if the plugs are too hot. If you are not having any problems, I suggest you leave well enough alone!

 

lol, i guess that makes sense. Why fix it if its not broke, right?

 

Random i still have my ZEX plugs from when i had my NOS.You think i should use the ZEX plugs when my turbo goes in or purchase NGK Colder ones Thanks smile.gif

 

I would go with the NGK V Coppers in a "7" Stock heat range is a '5' You should also knock the spark gap down to about .040 from the stock gap of .044

For me, that help ALOT with the detonaton problems...but they still happen at freeway cruising. Low throttle mapping is just horked up still.

 

I'm still using the usual NGK V coppers and have had no detonation problems! Mind you, the super(?)charger belt snapped the other day and left me with no PAS or alternator sad.gif but thats another story.

 

So now it's a stuporcharger?