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What NGK plug is hotter, BU8H or BUHW?

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  • What NGK plug is hotter, BU8H or BUHW?

    Anyone know this?


  • #2
    Re: What NGK plug is hotter, BU8H or BUHW?

    Take a look here. PDF file: web page
    Rick

    "Boating is Life...All the rest is just Details"

    2007 Bentley 200 Cruise
    2007 Merc. 90 4 stroke

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    • #3
      Re: What NGK plug is hotter, BU8H or BUHW?

      Was just looking at that..can't decipher the BUHW temp. Is it colder or warmer than the BU8H.

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      • #4
        Re: What NGK plug is hotter, BU8H or BUHW?

        Surface gap plugs don't have a 'heat range' rating.They are at the extreme end of cold.
        Watch this space......................

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        • #5
          Re: What NGK plug is hotter, BU8H or BUHW?

          Thanks for the info. Does anyone know why merc recommends running the coldest of the cold. The compression isn't overly high. However, I know that mercs (or at least mid 80's to early 90's Black Max V6's) run hot so maybe there's the anwser.

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          • #6
            Re: What NGK plug is hotter, BU8H or BUHW?

            To help combat the dreaded fouled plug.The fuel ration control, quality of oil and combustion is much better on newer 2 strokes - fouling isn't so much a problem so surface gap plugs are becoming less and less important.
            Watch this space......................

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            • #7
              Re: What NGK plug is hotter, BU8H or BUHW?

              For anyone is following the post.I contacted NGK and the said the BUHW is a colder spark plug and the BU8H has an actual heat rating which is hotter.

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              • #8
                Re: What NGK plug is hotter, BU8H or BUHW?

                NGK has a cool web site with all the info you want to know about plugs. I lost the address. I will see if I can find it and post it for you if I can. Tim

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                • #9
                  Re: What NGK plug is hotter, BU8H or BUHW?

                  www.ngksparkplugs.com
                  1997 Tracker Pro Deep V 17 - Mercury 75HP 3 cyl. 2 stroke

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                  • #10
                    Re: What NGK plug is hotter, BU8H or BUHW?

                    Which plugs are best..

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                    • #11
                      Re: What NGK plug is hotter, BU8H or BUHW?

                      So which is better NGK BUHW or Champion L76V plugs.

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                      • #12
                        Re: What NGK plug is hotter, BU8H or BUHW?

                        I think the BUHW NGK are the equivilent replacement for Champion L76V.
                        "Many of the greatest sailors were pukers."--Thorfinn Skullsplitter

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                        • #13
                          Re: What NGK plug is hotter, BU8H or BUHW?

                          Ok, Thanks

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