Will hotter spark plugs do damage?? | FerrariChat
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Will hotter spark plugs do damage??

Discussion in 'Technical Q&A' started by christopher, Jun 2, 2004.

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  1. christopher

    christopher Formula 3

    Nov 29, 2003
    1,136
    Ontario California
    Full Name:
    Christopher
    #1 christopher, Jun 2, 2004
    Hello again "F"-Chatters,

    I pulled the plugs from my 79 308 and found that they may have been hotter the O.E. spec'd they're NGK-BP6ES rather than spec'd NGK-BP6ES. Can there be any damage caused by this? What would the advantages be??

    Please advise..........
     
  2. Peter

    Peter F1 Veteran
    Owner

    Dec 21, 2000
    6,441
    B.C., Canada
    #2 Peter, Jun 3, 2004
    I think you mis-typed the plug numbers as they're both the same...

    In any case, one number up in heat range should not cause any damage, but I wouldn't do any high-speed cross-country driving with them.

    I currently have NGK 5's in the car. When I do my drive down to CA in August, I'll be putting my 6's back in there. With NGK's, the smaller the number, the hotter the plug.
     
  3. Jerrari

    Jerrari F1 Veteran

    Jul 24, 2001
    5,469
    Michigan
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    Jerry Wiersma
    #3 Jerrari, Jun 3, 2004
    Excuse my ignorance but what is the purpose of a hotter plug? Is it to ignite the fuel sooner or to create a bigger explosion in the cylinder or what? Thanks, Jerry.
     
  4. Steve Magnusson

    Steve Magnusson Two Time F1 World Champ
    Lifetime Rossa

    Jan 11, 2001
    26,932
    30°30'40" N 97°35'41" W (Texas)
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    Steve Magnusson
    #4 Steve Magnusson, Jun 3, 2004

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