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Another NGK TR-55 Spark Plug Gap Question

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Old 05-26-2010, 03:08 PM
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Exclamation Another NGK TR-55 Spark Plug Gap Question
I have NGK TR-55 V-Power Spark plugs for my 02 WS6 and I'm going to put them in with Full exhaust and a lid. Well I looked at many threads but I have just got mixed gaps. I have read that some people say the best is .55. Some people say .5 is the best. Some people also say .45 is to low but some still like it. Well how would either one make a difference? Which one would be better for me?
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Old 05-26-2010, 03:11 PM
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I've ran them at .055 and not had a problem


Somewhere between .050 and .060
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Old 05-26-2010, 03:14 PM
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Split the difference and go .055"...it'll work great!
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Old 05-26-2010, 08:23 PM
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Thanks guys!
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Old 05-27-2010, 12:01 PM
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I have run at 50, 55, and 60 with no issues with any.
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Old 05-27-2010, 12:10 PM
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where can you buy these plugs locally?
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Old 05-27-2010, 02:36 PM
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I know Advanced carries them
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Old 05-27-2010, 02:54 PM
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I got mine from O'reilly for $18 for all 8.
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Old 05-27-2010, 05:48 PM
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Ask for stock number 3951 and you'll be good to go!
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Old 05-27-2010, 07:02 PM
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i just went on advances and orielly's website and didn't find them all i see is TR5's.
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Old 05-27-2010, 08:53 PM
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Originally Posted by fbodyman1026
i just went on advances and orielly's website and didn't find them all i see is TR5's.
Go back to Oreilly's website and type in 3951 in where is says "PRODUCT SEARCH" and it should pop up.
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Old 05-28-2010, 09:22 AM
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TR5 and TR55 are the same plug, just gapped different. The TR% comes gapped at .040" and the TR55 comes at .060". Same heat range and all!
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