fourwheelslide

1. I am chipped w/ Revo peak boosting to a peak of 22 psi...which plug is recommended? Where can I get this plug (any old auto parts store?)
2. Do I have to gap the plug that you recommend, or does it come pre-gapped correctly?
3. How hard is it to change the plugs on our cars...I know that the coil packs have to be pulled and there is a tool for that, but can it be done otherwise?

Any other suggestions or comments on this?

TIA guys!

bhvrdr

They will reduce temps around 40 degrees over a platinum which is more than enough for only a 25hp-35hp gain. Change out the coppers every 10K miles to be conservative. Copper is by far the safest and best conductor utilized in spark plugs. People choose platinums and iridiums for longevity, but the burn hotter and do not conduct as well. cheers! Mike
<img src="http://pictureposter.audiworld.com/57072/densoandngk.jpg"><ul><li><a href="http://www.sparkplugs.com">http://www.sparkplugs.com</a</li></ul>

akula-ssh

Or does the spark plug not make nearly as big of a difference given the 3.0 is N/A?

fourwheelslide

Mike...thanks for the info...do the NGKs in the picture have to be gapped? If so, to what dimension?

bhvrdr

Always double check the gaps, but those two plugs are pregapped to .032. Perfect.

bhvrdr

You can always gain from the conductivity, but no the platinums shouldnt be a prob in the 3.0 at all

akula-ssh

Thanks Mike! Would you venture a guess what kind of gain the 3.0 can get with Cu plugs?

fourwheelslide

I have found some that say to gap to .027 w/ these plugs...any reason vs. .032?

bhvrdr

them from fouling and the horsepower loss associated with too small of a gap, give you a smooth run, and is still very conservative of a gap. There are some who run as much as .044. The .032 is the way to go. Cheers! Mike

fourwheelslide

OK...perfect! I can't believe how cheap those plugs are! Crazy that they work better!