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Thread: Spark Plugs

  1. #1
    Moderator Daryn's Avatar
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    Default Spark Plugs

    Whats type of plugs should I be using in my stroker, 10:1 compression? i.e heat range etc. Currently, I'm using NGK BPR6EF but they've fouled so I thought maybe I should be using a different heat range or something.

  2. #2
    D.I.L.L.I.G.A.F? Woodsy's Avatar
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    Carbon fouling on your spark plug indicates that it is too cold for your application. However, from what I have read about plugs it's not as simple as changing to a higher heat range. An over rich air/fuel mixture can lead to your plug staying too cool as can oil seeping into your combustion chamber. It's also noted that an over-retarded or deteriorated ignition system can lead to carbon fouling (ie, any part of your ignition that is not operating at full capacity can have an effect). You mentioned that you weren't getting signal with your timing light yesterday so that is definitely an avenue worth investigating.

    How did you come up with those plugs in the first place?







  3. #3
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    just asked mick & he recons standard plugs for that combo which are BPR5FS15 but as Woodsy says i'd be looking elsewhere as well your not running a full on race motor & this is where you need to start looking at plug changes

  4. #4
    been here .......too long Smitty2's Avatar
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    I use AC2 Rapidfire Platinum in my 308 race car

    great plugs ...but a not a set you get cheap
    at Autobarn or Supercheap (trade is $8.50 ..EACH!)

    would suit I reckon

    hth

  5. #5
    Do you ever leave? RVK 355's Avatar
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    if the plug is fouling up its probably more tune related, when dose the plug foul up, crusing around or at WOT

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    Moderator Daryn's Avatar
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    Quote Originally Posted by Woodsy
    How did you come up with those plugs in the first place?
    That's the standard plug issue for the VS 5.0L.

    Quote Originally Posted by RVK 355
    if the plug is fouling up its probably more tune related, when dose the plug foul up, crusing around or at WOT
    Not sure, although I've been in touch with my tuner and he has made some changes to the tune..............see how we go.

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