SPARK PLUG CHANGE | FerrariChat

SPARK PLUG CHANGE

Discussion in '308/328' started by Kvnhpnr, Aug 22, 2022.

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  1. Kvnhpnr

    Kvnhpnr Karting

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    Kevin Scott Hepner
    I am getting ready to change the spark plugs in my 86 328 GTS and wanted to find out what are the best plugs to use...NGK? Bosch? I want to go with iridium and not sure which are best. Should the plug wires be changed along with the plugs or can they be done later?
     
    Kvnhpnr, Aug 22, 2022
    #1
  2. Milkshaker0007

    Milkshaker0007 Formula Junior

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    I’ve had iridium plugs in mine since I owned my 328 with no issues.
     
    Milkshaker0007, Aug 22, 2022
    #2
    maurice70 and miketuason like this.
  3. cbmcdona

    cbmcdona Karting Silver Subscribed

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    As you have a 328, and most likely have plug extenders without internal resistance, the NGK BPR6IX is probably a good choice. The iridium plugs last longer and are more resistant to fouling and the 6 heat range seems like the most common choice in these cars for street driven vehicles.


    Sent from my iPhone using FerrariChat.com mobile app
     
    cbmcdona, Aug 22, 2022
    #3
  4. miketuason

    miketuason F1 World Champ Owner Silver Subscribed

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    Same here NGK BPR7EIX Iridium
     
    miketuason, Aug 22, 2022
    #4
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  5. GordonC

    GordonC F1 Rookie Owner Rossa Subscribed

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    I'm using these same NGKs, 7 heat range.

    Gordon
     
    GordonC, Aug 22, 2022
    #5
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  6. Iain

    Iain F1 Rookie

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    For 328s use NGK DR8EIXs and forget about them


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    Iain, Aug 22, 2022
    #6
  7. Kvnhpnr

    Kvnhpnr Karting

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    Than you to everyone for all you advice, I will let the mechanic working on know
     
    Kvnhpnr, Aug 23, 2022
    #7
  8. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ Lifetime Rossa

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    You guys are mixing apples and oranges:

    NGK BPR (14mm thread) = for 308

    NGK DR (12mm thread) = for 328

    The good news is that the 328 Microplex ignition can fire the coldish stock "8", DR8EIX, 328 plugs well, and we've had zero discussion about needing to use something else on a 328 (I'm with Iain on this). Maybe going to DR7EIX for always street (not Autobahn) use is OK, but I wouldn't go to "6" -- JMO.
     
    Steve Magnusson, Aug 23, 2022
    #8
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  9. Rifledriver

    Rifledriver Three Time F1 World Champ

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    A 6 is too hot for any injected car. A 7 is OK but it calls for 8 and see no reason not to use them.
     
    Rifledriver, Aug 23, 2022
    #9
    maurice70 likes this.

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