Toymods Car Club Inc: Tech & Conversions => 1JZ plugs.. quick question

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oldcorollas
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Kita-Ku, Sapporo, Japan
Registered:
January 2003

Re: 1JZ plugs.. quick question	Mon, 25 August 2003 05:01

easy way to tell is to google for "NGK PLUG CODES" the B, K and E describe the thread type on the plug, the first number is heat range. R is resistor (has an internal resistor to limit how much current and spark you can get.... has anyone tried non-resistor to see if you get electrical interference?? if you don't then you will get more spark energy across the gap with a non-resistor plug) S is standard centre electrode Y is for V-grooved centre electrode. so for stock plugs BKR6ES or v-groove BKR6EY for colder BKR7ES, BKR7EY for non-resistor plugs BK6ES, BK6EY, BK7ES, BK7EY if there is a number at the end, ie -8 or -11, that refers to the plug gap, ie 0.8mm, 1.1mm respectively. colder plugs will foul at light load and idle, but will clean themselves when you give it some (since then they get into their temp range and burn off the carbon) if you are fouling plugs often, then you need a warmer plug, unless a warmer plug will be too hot at worst engine conditions (ie WOT high rpm) platinum are designed for low spark erosion in stock motors, with higher spark energy or higher temps, they will degrade quicker... just a thought, the ppl that use plats very quickly.. are they using standard heat range or colder??? any plug running too hot will die quickly, be it plat or not.... Cya, Stewart [Report message to a moderator]

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