Iridium automobile spark plug question.

[LifeofReiley]

I wish that standard plugs would last longer... after two sets in less than 50 hrs I went to Iridium and have had no more issues.

[G3i Ignition]

Originally Posted by slyfox

I've got the plasma 3 and the original plugs were removed at 100hrs, worn terrible. I replaced with the iridium plugs and now starts better and runs better. I think they are worth it.

Just my spin, personally I have ran the NGK standard electrode, V-groove, Platinum, and Iridium?s. All within 2 heat ranges of one another. The poorest seat of the pants performance and along with miss managed fuel mixture settings in order, were the standard, v-groove, and platinum. At the moment I?m running Nippon Denso Iridium?s. So far they seem to be the best for my performance application. I believe that the fine wire electrode exposes the spark better and from the same point of the electrode tip, which just seems to perform better. The question that I have is for the folks that run the standard plugs, have they ever tried the fine wires in there same application?

Thomas S.
www.g3ignition.com

[frankh]

Well then I have to qualify my statement..I run purely autofuel and almost exclusively run LOP..I could see that maybe the standard plugs could foul with 100LL or ROP running.

but for me the standards work just fine...I.e they never misfire..so they either work or they dont..A mis would be easy to detect.

Frank

[Toobuilder]

Originally Posted by LifeofReiley

I wish that standard plugs would last longer... after two sets in less than 50 hrs I went to Iridium and have had no more issures.

25 hours per set... WOW!

I run 100LL exclusively, split my flight time equally between cross country @ peak/LOP; and full throttle, full rich acro/goofing off - and my standard NGK's still look like new at 100 hrs. I almost feel guilty throwing them out.

I guess the thing to do is start cheap and work your way up until you find a plug that works.

...Just glad I can stay on the bottom floor...

[LifeofReiley]

I will say that we went straight from the cheapo Denso plugs straight over to the NGK Iridium plug. Also, the plug wear was noticeable in the short period of flight time with the Densos. I pulled the iridiums during the condition inspection yesterday and there is zero sign of any wear period.

[flyboy1963]

..I think I'll go Iridium, cause it just sounds sexier, and in airplanes that's gotta mean better, stronger, faster!
..plus,. I can tell my wife that they're earrings or something when she sees it on the mastercard statement ( for a while!)

are they hard to gap accurately? What gap do most guys run?
...seems the littel wires would be springy, & prone to break?????

[LifeofReiley]

Originally Posted by flyboy1963

..I think I'll go Iridium, cause it just sounds sexier, and in airplanes that's gotta mean better, stronger, faster!
..plus,. I can tell my wife that they're earrings or something when she sees it on the mastercard statement ( for a while!)

are they hard to gap accurately? What gap do most guys run?
...seems the littel wires would be springy, & prone to break?????

Gap on mine = .026

[N941WR]

Originally Posted by flyboy1963

..I think I'll go Iridium, cause it just sounds sexier, and in airplanes that's gotta mean better, stronger, faster!
..plus,. I can tell my wife that they're earrings or something when she sees it on the mastercard statement ( for a while!)

are they hard to gap accurately? What gap do most guys run?
...seems the littel wires would be springy, & prone to break?????

.032 on my el-cheap-o NGK's. Even after 100 hours of 100LL on my low compression engine and dual P-mags, they look great.

I wonder how that will change with the O-360.