Which is the better spark Plug?

[ShaolinMassa]

I am trying to decide between these two plugs...the Champion Double Platinum has a platinum ground and center electrode, the NGK Iridium plugs have the tips made out of iridium not just coated and the arm is plated in a special anti-corossive metal and the Denso Iridium has a iridium center electrode with a copper core...

1. Champion Double Platinum http://www.motorsportsbest.com/champion_spark_plugs.htm

2. NGK Iridium http://cgi.ebay.com/ebaymotors/ws/eB...tem=2480240023

3. Denso Iridium http://www.densoiridium.com/index.php?flash=1

What do you guys think?

[Nexagen]

"This spark plug not only embodies all the technology available for spark plugs used by manufacturers such as GM, Chrysler, Mitsubishi and Toyota, but it's actually the OEM design for these engines."

What they have just said there is that they make the stock plugs for some of the car manufacturers above...

Why would you even consider putting stock plugs in your car when you can put a high performance one?

In my opinion, dont go with champion.

Champion? Heh! More like Amateur!

Anyway just my

-Nexagen

[MagicRat]

In the past, there was something wrong with the insulators in Champion plugs. I would find they would lose performance after 6 months or so.
Generally I use AC Delco plugs. They last forever, it seems.

[Esky]

I'm using Denso Iridiums bcoz of its fine central electrode (0.4mm) which supposedly reduces the gapping voltage, so I get to increase the gap while not over-stressing the ignition system!

Would like to try Brisk spark plugs because of their surface gap design, which allows gaps of up to 0.12" or around 3mm (normal plug gaps range from 0.3~0.4").

Anyone heard of or used Torque Master plugs? (www.torquemaster.com)

[Polygon]

Either NGK or Denso would be a good pick. My NGK Iridium IX plugs actually came pre gapped at the correct gap. They last forever and give great spark. The Champions are ok, but I have found that turbo-charged engines and engine running nitrous don't like platinum plugs. Turbos seem to like to burn them up and platinum is a catalyst for nitrous.

[Esky]

I've always heard great things about the AC Rapidfire plugs... what's so special abt them anyway?

[83-944]

Either iridiums work great for the reasons above.

Unless you burn a lot of oil, which the anti fouling of platinums would be better.

Side note: I noticed that the platinum part of the electrode burns off when using very high voltage sparking system. i had a set of platinums that the tip was gonme and the spark was traveling inside the ceramic cone. This stopped happening when I switched to iridiums, very low electrode wear since then. food for thought.

[bm2boats]

Iridium Plugs from what I heard heard are more for Racing.

[Esky]

Platinum is anti-fouling? U mean it burns off the oil on its surface instead of letting it stay? That's new to me!

AFAIK there's a couple types of iridium plugs- the ones with ultra-fine 0.4mm electrode meant for racing only as the ground electrode isn't made of a long-lasting material. The other type being the long-life ones with 0.6 or 0.7 mm ground electrode.

Have heard good comments on German-made OWS double-iridium plugs. That's right, DOUBLE iridium for super-ultra long life! And cheaper than NGK or Denso iridiums!

[Esky]

Sorry, typo, I mean 0.6~0.7mm CENTRE electrode.

[INF3RN0666]

Well I'm running an engine that has taken a beating. 456000 KM! I'm using AC Delco plugs and they run great. The engine is still smooth and hopefully will last till a million :q .

[83-944]

Platinum is anti-fouling? U mean it burns off the oil on its surface instead of letting it stay? That's new to me!

Yup, sort of. Platinum plugs reach a self cleaning temprature faster.

Although now iridiums are claiming antifouling properties better than platinums. Oh well, where ever there's a market niche, they gotta jump in.

[martinhutnik]

so r iridium plugs the best performance wise?

[Esky]

I haven't tried out all types, so... to me Iridium is the best for the moment.

I like iridiums coz the lower firing voltage required due to the fine electrode allows me to open up the gap a bit for a bigger spark without straining the ignition system too much. Since I don't hi-rev much, this mod doesn't hurt my driving.

[public]

A/C Delco or Motorcraft have always worked great on stock engines. My old turbo Buick came with A/C Delco and they worked great. I would replace tham at tuneup time and the old ones still looked good each time. As for Champion I have had good luck with them but I hear others do not????? Perhaps a loose nut behind the wheel :-)