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Old 10-07-2008, 12:49 AM   #31 (permalink)
ConnClark's Avatar
Join Date: Jun 2008
Location: Richland,WA
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Das Schlepper Frog - '85 Mercedes Benz 300SD
90 day: 23.23 mpg (US)

Gentoo320 - '04 Mercedes C320 4Matic
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As stated by others here increased power through the plugs increases wear on them. I do know you can get a short term power gain at least until the spark plugs degrade but is it worth it in the long run? I don't think its economically viable. The only thing that would really work is a double cored plug with two coils feeding it and a separate electrode for each core.

Aircraft have two plugs per cylinder. The also use magnetos that produce a longer and hotter spark. This does give them more power but it does wear the plugs out quicker. To deal with this they go through a much more rigorous inspection and maintenance schedule. I think they are checked every 100 hours of operation.

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