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Best Spark Plug for 5.3 with Supercharger?

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Old 05-18-2009, 12:59 PM
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Default Best Spark Plug for 5.3 with Supercharger?
I am sure there are many opinions on this topic just like "what is the best oil". I am running a 2008 silverado with a Magna TVS 1900 SuperCharger. I am putting a smaller pulley, ARH headers, and NO Meth. It is running really Rich now so I am going to putting the headers on and the pulley and get a custom Dyno tune. Before I do this I want to change the plugs so I figure I would ask to see if anyone likes on kind or the other. I have heard not to run Platnium.

Thanks!:nunchuk1:
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Old 05-18-2009, 01:01 PM
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NGK TR-55 is what I am running with the blower, but alot of guys choose to run TR-6 plug iirc..
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Old 05-18-2009, 01:03 PM
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TR 6 gapped at .035
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Old 05-18-2009, 02:24 PM
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Originally Posted by WorkTruc
TR 6 gapped at .035
Same here. 25k miles under boost. Probably overdue for an inspection.

Rick
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Old 05-18-2009, 06:22 PM
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Originally Posted by WorkTruc
TR 6 gapped at .035
+1, that is what I have heard from FI guys in here
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Old 05-18-2009, 07:07 PM
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I run the tr6 ix plugs which are the iridium version of the popular copper tr6
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Old 05-18-2009, 07:09 PM
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that is all.
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Old 05-18-2009, 07:17 PM
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Ngk tr6
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Old 05-18-2009, 09:37 PM
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I am running TR55s.
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Old 05-18-2009, 09:45 PM
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Originally Posted by JennaBear
I am running TR55s.
Just cause J told you to..
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