TwinTurbo.NET: Nissan 300ZX forum - P.S. Each (higher) number is a cooler plug
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Subject P.S. Each (higher) number is a cooler plug
     
Posted by SirpriZ on November 11, 2006 at 6:23 PM
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In Reply To NGK Iridium BKR7EIX, BKR8EIX, or BKR9EIX posted by SirpriZ on November 11, 2006 at 06:14 PM
     
Message that pulls more heat out of the combustion chamber, reducing the chance of detonation. I found the copper plugs to start breaking down as cylinder pressure increases (I was running 20 PSI). I've heard other folks have good luck with them, with moderate boost. That is all.

     
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