what kind of spark plugs should I put into my 456? | FerrariChat
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what kind of spark plugs should I put into my 456?

Discussion in 'Technical Q&A' started by ferrari_456, Feb 20, 2013.

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  1. ferrari_456

    ferrari_456 Karting

    Jan 30, 2011
    75
    #1 ferrari_456, Feb 20, 2013
    What is the best spark plugs for my 456 if I use it for racing and where I live in the summer is very very hot..... should I use the coldest park plug available? I need 12, right, am I correct? NGKs, Bosch, racing spark plugs???????
     
  2. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
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    Winston Salem, NC
    #2 Ricambi America, Feb 20, 2013
    DCPR9EIX
     
  3. ferrari_456

    ferrari_456 Karting

    Jan 30, 2011
    75
    #3 ferrari_456, Feb 24, 2013
    Hi, thanks, but this is exactly what I am using right now, Is there a colder spark plug that I can try? Car gets really hot here in the summer, temperature gets over 35 Degress celius and very very humid over here
     
  4. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
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    #4 fastradio, Feb 24, 2013
    Combustion temperature dictates the proper plug heat range. Ambient air temperature has little effect here.
     
  5. ferrari_456

    ferrari_456 Karting

    Jan 30, 2011
    75
    #5 ferrari_456, Feb 24, 2013
    I do understand what you are saying, but I use my car for racing and also my heads have been shaved down abit so my car runs little bit hotter than stock, also some other engine mod. Has been done to it. This is why I want to run colder plugs if they are available...
     
  6. ferrari_456

    ferrari_456 Karting

    Jan 30, 2011
    75
    #6 ferrari_456, Feb 24, 2013
    I do understand what you are saying, but I use my car for racing and also my heads have been shaved down abit so my car runs little bit hotter than stock, also some other engine mod. Has been done to it. This is why I want to run colder plugs if they are available...
     
  7. brian.s

    brian.s F1 Rookie
    Professional Ferrari Technician

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    Brian
    #7 brian.s, Feb 24, 2013
    David, you should have known better than offer informed advise. This IS the internet, let the Netsperts chime in, LOL
     
  8. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,728
    #8 Mitch Alsup, Feb 24, 2013
    You switch to a colder plug AFTER you hae taken the car on a heat soaking run, then pull the plugs and look ath the color of the combustion process. If the color is in the acceptable part of the spectrum, you leave the plug where they are.

    The reason that ambient air temperature is of little concern is that the motors are cooled by water (and glycol). THus the head temps are nearly the same winter or summer.
     
  9. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    #9 Rifledriver, Feb 24, 2013
    He'll never learn.
     
  10. fastradio

    fastradio F1 Rookie
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    Apr 26, 2006
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    David Feinberg
    #10 fastradio, Feb 24, 2013
    Sorry gents...Just trying to raise the bar here a little. :D
     
  11. KJB355

    KJB355 Karting

    Apr 4, 2006
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    Chicago
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    Kenneth Brom
    #11 KJB355, Feb 25, 2013
  12. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
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    #12 tazandjan, Feb 25, 2013
    Same answer elsewhere that David gave. If at first you do not get an answer you like, ask again in another place.
     
  13. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
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    Frederick, Maryland
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    #13 Motob, Feb 25, 2013
    NGK makes dedicated racing spark plugs in the same size (12mm) in 9, 10 and 11 heat ranges, with standard, platinum and iridium electrodes.
    If you are planning on racing your 456GT at LeMans at full throttle at or near redline, then by all means put a colder plug in it.

    If you are driving the car on the street in traffic then stick with the standard heat range plug.
     
  14. JL350

    JL350 Karting

    Jan 20, 2013
    215
    #14 JL350, Feb 27, 2013
    Is there a reason for changing to a colder plug? Plug is for fuel mixture ignition.

    Could try half colder, and half the same
     

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