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07-02-2009, 07:42 PM | #1 |
Drives: yaris sedan 2NZ-FE Join Date: May 2007
Location: Egypt
Posts: 75
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denso iridium or splitfire ?
which is better denso iridium or split fire spark plugs
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07-02-2009, 07:43 PM | #2 |
Apexing Egg!!
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do you have over 100k miles? Thats when the stock iridium plugs need replacement. if you are that worried, just take them out and clean them.
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HighTach Motorsports 2007 Toyota Yaris-ARGH!! Mods: Tokico HTS, 6.6 kg F, 6.1 kg R custom springs, 23 mm RSB, 2-way TRD LSD, 15x7 +25 Team Dynamic wheels, 195/55/15 Dunlop Star Specs, Cobra Suzuka S |
07-02-2009, 08:47 PM | #3 |
Drives: yaris sedan 2NZ-FE Join Date: May 2007
Location: Egypt
Posts: 75
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i live in egypt my stock plugs are denso but not iridiums
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07-03-2009, 02:54 AM | #4 |
Learn to Relax
Drives: 2007, Meteorite, LB Join Date: Dec 2008
Location: Anaheim, CA
Posts: 2,070
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I believe Denso is the brand of the iridium plugs.I don't think Toyota would use anything else.
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07-03-2009, 03:33 AM | #5 |
Drives: '09 Yaris carmine red 2d HB Join Date: Jun 2009
Location: Middletown, NY
Posts: 1,502
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07-03-2009, 07:49 AM | #6 |
Drives: yaris sedan 2NZ-FE Join Date: May 2007
Location: Egypt
Posts: 75
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do i have anything to worry about installing them , gapping or misfiring issues ?
and should i expect any power gains or better MPG ? |
07-03-2009, 11:20 AM | #7 |
Half a Bubble Off Plumb
Drives: 2009 Yaris Sedan Join Date: Mar 2009
Location: Bristol, Tennessee, USA
Posts: 1,593
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Spark plugs are spark plugs so far as engine power and fuel economy are concerned. If the plug's firing, the engine doesn't know or care what the electrodes are made of or if there's more than one ground electrode. The spark can only jump to one at a time. Claims of performance improvement with changes in plug design are snake oil. The advantage of the iridium plugs is the 100,000 mile life. The iridium plugs are shipped pregapped and should be OK if they haven't been dropped or something. It's not recommended to gap them yourself as the iridium is very brittle.
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07-03-2009, 11:35 AM | #8 | |
Start another Oil Thread!
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denso iridiums for NA applications
plain ol copper for FI applications
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07-03-2009, 12:42 PM | #9 |
DKDC
Drives: Yarlet Join Date: Aug 2006
Location: los angeles
Posts: 200
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denso iridium hands down.
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