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Discussion Starter · #3 ·
depends on what your using it for
Well the engine has a turbo. I was told I needed to get spark plugs one step colder. After doing some research, I read that I could use these plugs. But everyone had a diff. opinion on the gapping. Right now I have them set to .30.
 

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Classic Man
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99% of people run BKR7E, part number 4644. Gap them down .005" at a time, until you get no ignition misses at full load. Start around .035" and work your way down. If your ignition system is healthy it may run .035" all day.
 

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99% of people run BKR7E, part number 4644. Gap them down .005" at a time, until you get no ignition misses at full load. Start around .035" and work your way down. If your ignition system is healthy it may run .035" all day.


4644 = .035" (.9mm) gap

4097 = .031" (.8mm) gap


Both are heat range 7 but most importantly the 4097 should never be used in a stock Honda ignition as they are not resistor plugs.
 

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98 Civic HX D16Y5
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4644 = .035" (.9mm) gap

4097 = .031" (.8mm) gap


Both are heat range 7 but most importantly the 4097 should never be used in a stock Honda ignition as they are not resistor plugs.
What does this have to do with this thread?

Am I missing the relevance?
 

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Brokedick Millionaire
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You can buy the plugs pregapped....

OEM NGK plugs, the -11 = 1.1mm
 

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Retired From Hondas
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99% of people run BKR7E, part number 4644. Gap them down .005" at a time, until you get no ignition misses at full load. Start around .035" and work your way down. If your ignition system is healthy it may run .035" all day.
^^^

This



I ran mine at .040 as I had a decent coil. But like Farmer said, your results may vary.


Ive also used non-resistor plugs and had zero issues
 
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