spark plug reading question
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From: the not so stock tribe
spark plug reading question i took my plugs out for inspection and i see that the electrode is white / light tan and the base is black ( like really black).
i just had the car dyno tuned and A/F ratio was set to 12.5 . should i be worried? is this normal or should the electrode be darker?
the car has an ATI kit running 10psi
i just had the car dyno tuned and A/F ratio was set to 12.5 . should i be worried? is this normal or should the electrode be darker?
the car has an ATI kit running 10psi
On The Tree
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From: Warner Robins, GA, CSA
Re: spark plug reading question 
TECH Apprentice
Joined: Aug 2002
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From: Maple Grove MN
Re: spark plug reading question That sounds about what mine looked like when I just changed them. I could not tell you wheater or not its good. I was a little worried also. When I use to be a nitrous freak I had a plug burn like in that picture. Dont know what happened to the tip of it. Woops! <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
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8 Second Club
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From: the not so stock tribe
Re: spark plug reading question i still have the tips on , but the color was similar to the ones you had ( more white than green though).
what happened to your plugs! toooo lean?
what happened to your plugs! toooo lean?
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On The Tree
Joined: Dec 2001
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From: San Diego, CA, USA
Re: spark plug reading question </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>What are the best ways to determine you need a colder plug than the TR6's with FI?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Good question, I would like to know as well?
<strong>What are the best ways to determine you need a colder plug than the TR6's with FI?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Good question, I would like to know as well?
On The Tree
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From: Warner Robins, GA, CSA
Re: spark plug reading question </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong>What are the best ways to determine you need a colder plug than the TR6's with FI?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The "best" way is to do a WOT 1/4 mile run, shut the eng. off, coast to a stop, pull a plug and 'read' it. If it's blistered, has a cracked insulator, and/or too 'white' in appearance then you're plugs may be too 'hot'.
If you hear detonation and then pull a plug, it may be too late..............see the link above with pics.
Dan
<strong>What are the best ways to determine you need a colder plug than the TR6's with FI?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The "best" way is to do a WOT 1/4 mile run, shut the eng. off, coast to a stop, pull a plug and 'read' it. If it's blistered, has a cracked insulator, and/or too 'white' in appearance then you're plugs may be too 'hot'.
If you hear detonation and then pull a plug, it may be too late..............see the link above with pics.
Dan
