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Spark Plug reccomendation??

Discussion in 'Forced Induction' started by gettocrx, May 23, 2006.

  1. gettocrx

    gettocrx Member

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    Just curious, which spark plugs should I use for my D16z6?
    I tried Zex turbo plugs and a couple different NGKs.
    But which ones works best for boosted D16z6?
    Because a friend of mine reccomended NGK 1283 but it had hard time on cold start ups! another friend told me to use NGKs ZFR7F-11... But I want to see what most people use? also what should I gap it at?
    Or maybe It's because I dont usually gap it?
    Aight Thanks!
     
  2. cycloneb18c3

    cycloneb18c3 Senior Member

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    Id run an NGK-R7233-8
    its an NGK-R plug
    thats one step colder then what your running now.
    gap it at like .44"
     
  3. cypher

    cypher Faster then you!

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    gap it at .44?! damn you could throw a football threw that thing

    Turbocharged to 15psi, supercharged to 10psi, NA up to 12:1
    NGK 7173 R5672A-8
    Gapped to .020-.025

    Turbocharged 15psi+, supercharged 10psi+, NA 12-13:1
    NGK 7405 R5672A-9
    Gapped .018-.022

    Turbocharged 650+, Boosted with Nitrous, NA 13:1+(Race gas only)
    7942 R5672A-10
    Gapped .013-.020

    These are non-resistor racing plugs. If you want to run a resistor type spark plug you can substitute the 8 and 9 plugs for the NGK Iridium 2668 (8) and 2669 (9).
     
  4. reikoshea

    reikoshea HS Troll...And Mod Moderator VIP

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    .044 is 1.1mm and that is the recommended gap for a stock app. but cypher (as much as i hate to say it) is right. you should reduce the gap for higher hp apps.
     
  5. gettocrx

    gettocrx Member

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    I changed my plugs again with NGK 1283 (BKR7E-11) and gap @.35" car seems to be running better now.. I also found out the part# for ZFR7F-11 is NGK 2975. I'll try these next time since stock ones are the 2262 (ZFR5F-11). thanks for the info guys! :D
     
    Last edited: Jun 26, 2006
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