Subject	they don't last as long as platinums
Posted by	aliaZ on December 13, 2006 at 6:32 PM
	This message has been viewed 667 times.
In Reply To	Spark Plug info......... posted by Greg D. (Specialty-Z) on December 13, 2006 at 03:31 PM
Message	I ran a set of iridiums in my Z until I started to notice a misfire when boosting. Most of this was commuting back and forth to work. I pulled the plugs and discovered that the outer electrode had eroded, opening up the gap to .050". Apparently the inner electrode is iridium, but the outter electrode is not and wears rather quickly. Plugs had 30k miles on them. Platinums have platinum on both electrodes
Follow Ups	Spark Plug info......... - Greg D. (Specialty-Z) 15:31:47 12/13/06 good info. thanks for sharing (n/m) - mbrock15 15:39:02 12/13/06 Re: good info. thanks for sharing - sleek 22:15:44 12/13/06 ib owned-paman (n/m) - Zeus 15:42:40 12/13/06 LOL - Oppaman Z 16:45:36 12/13/06 Thanks for the info Greg. Do these Iridium plugs come in - Inzane 15:46:34 12/13/06 Go to specialtyz.com and they are listed there. (n/m) - wiZardZ 15:55:32 12/13/06 I see that, but that doesn't answer my question (re: length) (n/m) - Inzane 16:28:35 12/13/06 Re: Thanks for the info Greg. Do these Iridium plugs come i - Greg D. (Specialty-Z) 17:06:48 12/13/06 at which boost levels would you say that the - ZEngineer 17:20:46 12/13/06 It is not so much failing as it is not pulling the heat out - Greg D. (Specialty-Z) 18:42:07 12/13/06 Thanks for the clarification. (n/m) - Inzane 17:25:35 12/13/06 Nice. - Milo (reborn) 15:52:50 12/13/06 Doesnt denso make a 0.4mm tips on their's? - twinturbopoweredz 15:57:13 12/13/06 You mean Wolfram? (n/m) - Scotts94z32 16:08:29 12/13/06 Sure if your a bearded alchemist from the dark ages... :) (n/m) - CaliguyPurdue 16:21:26 12/13/06 Plenty of European countries still call it Wolfram (n/m) - Technomancer 11:30:50 12/14/06 Sup Ed long time no talk :) (n/m) - Jay(Socal) 16:22:49 12/13/06 So..are we meeting up for some coffee or what? (n/m) - twinturbopoweredz 16:53:53 12/13/06 Tungsten oxidizes... iridium is the most noble metal - CaliguyPurdue 16:27:11 12/13/06 Thanks Greg! (n/m) - Piranha(Omaha) 16:09:26 12/13/06 NGK needs to get their act together then ... - Guapo 16:11:24 12/13/06 HAHA, thats funny. (n/m) - twinturbopoweredz 16:16:07 12/13/06 That was the first response that I recieved as well.... - Greg D. (Specialty-Z) 17:15:38 12/13/06 fair enough (n/m) - Guapo 20:06:45 12/13/06 Here is a spec match for the Iridium compared - colocomp (Denver) 17:28:36 12/13/06 Ok, cool. So which model and heat ranges do you recommend (n/m) - SkiFly01 16:14:12 12/13/06 Here you go. - ZJeweler 16:38:19 12/13/06 Iridium is also about 1/3 the price of Platinum per Oz. (n/m) - Zirvana 16:19:47 12/13/06 Thanks for the info, Greg! (n/m) - TT XTZ 17:27:03 12/13/06 Greg, thanks for the infos but >>> - Oppaman Z 17:30:39 12/13/06 Re: Greg, thanks for the infos but >>> - Greg D. (Specialty-Z) 18:39:17 12/13/06 they don't last as long as platinums - aliaZ 18:32:55 12/13/06 Interesting........ - Greg D. (Specialty-Z) 18:53:13 12/13/06 Mine were denso iridiums, not NGK - aliaZ 19:15:55 12/13/06 Ahh......I would be interested in seeing one that the - Greg D. (Specialty-Z) 19:28:23 12/13/06 I'll send one your way (n/m) - aliaZ 19:51:52 12/13/06 Thank You Sir! - Greg D. (Specialty-Z) 20:14:40 12/13/06 no problem - aliaZ 23:20:13 12/13/06 NGKs? (n/m) - colocomp (Denver) 18:59:36 12/13/06 nope (n/m) - aliaZ 19:16:12 12/13/06 Gapping the plugs will damage the iridium tip, - Red Baron Z 19:21:19 12/13/06 agreed, but that wasn't the issue - aliaZ 19:24:03 12/13/06 Sounds like a Denso Issue if the ground strap was going away (n/m) - Greg D. (Specialty-Z) 19:30:26 12/13/06 Re: Spark Plug info......... - movenu 18:36:08 12/13/06 Re: Re: Spark Plug info......... - Greg D. (Specialty-Z) 19:05:27 12/13/06 I guess Denso did not do as good of job as NGK :-) (n/m) - Greg D. (Specialty-Z) 19:31:50 12/13/06 Spark Plug info - Red Baron Z 19:02:39 12/13/06 Nice find and very good detailed info. - Greg D. (Specialty-Z) 19:15:26 12/13/06 Thanks Greg.cant wait til the flange arrives. (n/m) - Red Baron Z 19:25:26 12/13/06 Greg, Sorry I posted the pics of the Iridium plugs! (n/m) - Slider 21:24:55 12/13/06 I used iridium plugs after i took my car to Greg and Seb - whitezxtt 00:03:19 12/14/06
Post a Followup	You cannot reply to this message because you are not logged in.