im looking at getting new spark plugs and was just wondering witch of the two are better? the platinum ones are 10 more per plug so i just wanted to know because everyone has said the copper ones and then gap them to .04 and the platinum ones are already gapped so witch one is better?

 

sorry dont mean to steal your thread man but i have a ? about plugs 2 will changing my plugs to something diffrent than stock have any effect on my car i only have a intake and 3" catback

 

platinum spark plugs can easily spell doom for a forced induction motor, so stay clear of the platinum plugs!! Iridiums are ok and copper is ok, if you were N/A then platinum would be just fine for you..I see that you have stage 2, one step colder iridiums are what I run with similar setup

part # for NGK one step colder iridium plugs are BKR7Eix, find them here
http://www.cobalt-addiction.com/performance.htm

 

ngk copper.

 

first off i thought the stock plugs were the NGK platinums? and if u are running anything other than a stock pulley u want the iridium NGK plugs that run 1 step colder, they do wonders for ur engine!

 

with the right plugs yes...the objective is allowing for a bigger, and faster spark without overheating the combustion chamber, copper plugs are used by many when running high boost because copper stays cool.. Irridiums can be used also if the correct heat range is used...

the stockers are just standard NGK plugs, it is a rule of thumb that platinums are not to be used in an engine that has forced induction.

 

turbo/supercharger/nitrous = no no for platinums. i don't care what the dealer tells you, or some monkey behind the parts counter.

 

X2, theres lots of info about this on this forum and goggle about this topic.....
but in short....
Platium/Iridium last a very long time, I think like 60k miles or something, but are not great in boosted cars
Copper will have to be changed often, cant remember what it is, I usally change them every 2nd or 3rd oil change

NGK BKR7E

 

Anyone know the part number NGK two step colder iridium plugs ?

 

Please stay away from platinum plugs on this motor... it's not good.

Just use the good ol' cheap copper plugs... they work best for our application.

 

ngk number
6097

 

ok bringin back...but im getting the stage 2, i have the gm cat back and a cai..whats plugs should i get?

 

NGK BKR7E Copper plugs..... change them every couple oil changes

 

Now thats funny!

 

How is that funny?? We are talking about spark plugs, I never thought that spark plugs would make someone laugh....

 

No, not the spark plugs...but the changing of them every couple oil changes is what was funny.

 

Ok ima have them sitting here while i wait for the stage 2

ok are theses what i need? i think they are but they dont say nothing about chevy so i want to check to see if they will work b4 i go buy them. http://store.summitracing.com/partde...view=32&N=700+

 

that's what i'm saying. My car loves the NGK copper plugs.

 

ok..but i want to make sure these are the right ones,cuz it says nothing about chevy http://store.summitracing.com/partde...view=32&N=700+

 

That link doesn't work but you want NGK BKR7E Copper spark plugs.

 

stock number 6097

 

Thank you sir.

 

have a CAI catback and now a stage 2 what should my plugs i bought be gapped at?

 

with the stage kits, definatly colder, keep coppers, had a buick regal GS custom 3.8l s/c hated platnums, loved the champion coppers

 

yea i bought NGK coppers but i need to know how big to gap them?

EDIT: there one step colder