3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.

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spark plug?

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Old

09-27-14, 10:48 AM

#1

ricardo.benin

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spark plug?

Hi I was wondering what type of spark plugs to run on my 13b. I finished the rebuild and I plan to make 450 rwhp and was wondering what heat range of plugs to use.
Thanks
Richard

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Old

09-27-14, 01:28 PM

#2

SonicFD

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ngk r7420
10 or 10.5 is my guess

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Old

09-27-14, 03:32 PM

#3

ricardo.benin

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Hi thanks for the info. Btw do I use same plugs for leading and trailing.
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Old

09-27-14, 04:12 PM

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IRPerformance

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10 or 10.5. The 10s will idle smoother when cold and foul slightly slower.

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