Sparkplugs, Colder? Options

[mikee]

Hi

Ive read a bit about spark plugs and was thinking of getting the platinum NGK ones (BKR6EP-8/2215) as they have good reviews and are long life.
I was just wondering if i should go one colder and get the BKR7EP ones? I have a 3" exhaust and am running at 15psi. I don't often boost it so mostly stay under 12psi, but with the increase in boost would it be safer to have colder spark plugs for when i do thrash it or is it not a good idea or not necessary??

Thanks for the help in advance

This post has been edited by mikee: Aug 26, 2009 - 5:08 AM

[playr158]

going colder has to do with making more power.....1 step colder for every ~50-80hp or so

This post has been edited by playr158: Aug 26, 2009 - 11:16 AM

[razor7]

going colder has to do with making more power.....1 step colder for every ~50-80hp or so

That sounds funky, I was always under the impression that you'd want a hotter spark to burn more fuel at once, creating a bigger explosion, creating more power.

I went with NGK Laser Iridiums. I installed them last night, the took the car out on a "spirited" drive through the mountains, have to say that they performed well. All in all I'd say that they're burning better than the standard Iridiums that I put in before.

-TC