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98 C5 Base Spark Plug Gap

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Old 05-18-2024, 03:11 AM
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C5_V
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Default 98 C5 Base Spark Plug Gap

Hey I am going to get my 98 C5 dyno tuned soon. Has no cats and headers; motor is otherwise stock. I bought NGK TR55 spark plugs and was wondering what the recommended gap would be for my mods. I seen some people say anywhere between .44 and .55, but wanted to see what opinions anyone else had.
Old 05-18-2024, 03:47 AM
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Vetteman Jack
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Old 05-18-2024, 10:16 AM
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Originally Posted by C5_V
Hey I am going to get my 98 C5 dyno tuned soon. Has no cats and headers; motor is otherwise stock. I bought NGK TR55 spark plugs and was wondering what the recommended gap would be for my mods. I seen some people say anywhere between .44 and .55, but wanted to see what opinions anyone else had.
For the most part, you'll just get "I've gapped my plugs at .XXX, and I've never had a problem..." type answers.

Venture over to "Scan and Tune" to get feedback from those that do this for a living. https://www.corvetteforum.com/forums...n-and-tune-91/
Old 05-18-2024, 09:55 PM
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