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FYI Platinum vs Copper

 
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Old 18 Mar 2004, 11:50 am
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Location: Manchester, Maryland, USA.
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Default FYI Platinum vs Copper

Shortly after buying my ride I wanted to
change the stock plugs to something I thought
would be better. So I went to Champion Platinums,
the colder range. Last week I decided to replce the
stock coil pack with a MSD and 8.5 wires. While at it I
also changed to NGK V-Groove Copper plugs. What a surprise I
got when I removed the platinums! In all of the years that I
have been playing with cars I have never seen a set of plugs where the insulators were burned. I guess that I should blame myself
because I new that you are supposed to run copper plugs in any
motor that is super charged or turbo powered. Evidently
platinum plugs regardless of the heat range, are too hot for the
GT's.
Phil

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Old 18 Mar 2004, 01:22 pm
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Location: South Bend, IN.
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Default

Yep.

That has been discussed to death.
The tiny platinum tip is designed to run hot enough for self-cleaning.
Like your oven runs hotter than normal in the self-cleaning mode.

That super hot tip can pre-ignite the fuel and cause misfires. This is amplified under forced induction.

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Old 18 Mar 2004, 11:50 pm
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so should i switch out my factory plugs for copper plugs?
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Old 19 Mar 2004, 12:14 am
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Cpalm1, the stock plugs are copper.
Phil
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Old 19 Mar 2004, 01:49 pm
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ok, thanks. i misread your first post.
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Old 21 Mar 2004, 07:47 pm
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I'm feeling a little disapointed, my PT at 25K still runs sweet, no misfire , not a single complaint. Usually by now I have made at least one plug change.[B)]

What are you guys seeing as the most appropriate plug change time?
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Old 21 Mar 2004, 10:24 pm
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dc says 30,000 or before i have seen them longer with no problems and have seen them have probles sooner than that too. i would do them at 30,000
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