Spark plug help with XDI ignition | FerrariChat

Spark plug help with XDI ignition

Discussion in 'Mondial' started by srephwed, Jun 9, 2018.

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  1. srephwed

    srephwed F1 Veteran
    Silver Subscribed

    Apr 29, 2012
    6,471
    street,md
    Full Name:
    fred brown
    #1 srephwed, Jun 9, 2018
    I installed the XDI on my Mondial. I have been advised to run a colder plug but have not been able to get a number. Can any one tell me what plug should be in a 1985 QV and what do the numbers mean for heat so I can get the colder range. NGK, Bosh, Denso I don't care.I keep trying but it is starting to make my head hurt. Thanks in advance.
     
  2. gsfent

    gsfent Formula 3

    Nov 16, 2009
    1,096
    PB County, Florida
    Full Name:
    Jerry
    #2 gsfent, Jun 10, 2018
    I know that at least with NGK, the higher numbers make it colder. So for example, on one of my cars that I made forced induction, I went from a "6" to a "7".

    Not sure about Bosch or Denso, but an internet search for those should yield results.

    Regards,
    Jerry
     

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