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Which spark plugs?

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Old 09-20-2010, 01:38 PM
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dankhts
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Default Which spark plugs?
Time for a spark plug change on my H/C LS1 C5, current set NGK TR55, was recommended I run TR6 copper @ .035 gap... any other suggestions/input?

THANX!
Dan
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Old 09-20-2010, 02:37 PM
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vettenuts
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NGK recommends one range colder for every 100 hp added. I am running TR6's.
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Old 09-20-2010, 02:41 PM
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that's at least where I have to be then! THANX!
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Old 09-20-2010, 04:02 PM
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lucky131969
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Originally Posted by dankhts
Time for a spark plug change on my H/C LS1 C5, current set NGK TR55, was recommended I run TR6 copper @ .035 gap... any other suggestions/input?

THANX!
Dan
Pretty narrow gap for non-FI.
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Old 09-20-2010, 05:44 PM
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All_Motor_C5LS6
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Originally Posted by dankhts
Time for a spark plug change on my H/C LS1 C5, current set NGK TR55, was recommended I run TR6 copper @ .035 gap... any other suggestions/input?

THANX!
Dan
I run TR5s gapped at .45
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