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Location:
UK
Registered:
May 2002
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1JZ plugs.. quick question
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Sat, 16 August 2003 11:56
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Hi all.. quickie..
1JZ running 1bar on hybrids..standard fuelling.
best plugs?
Cheers
adi
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Location:
Wollongong
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sat, 16 August 2003 13:11
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NGK BKR6E-8 gapped to 0.8mm (0.032")
you could also try
NGK BKR7E-8 but they may foul easily being a colder plug.
Don't even bother about platinum. You'll chew them up too quickly.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sat, 16 August 2003 13:40
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how often do you guys change your plugs?
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Re: 1JZ plugs.. quick question
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Sat, 16 August 2003 14:19
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BKR6E gapped to 0.8mm every 10000k's MAX or you'll develope misfires etc.
Dont get the new NGK v-grooves either they are crap and misfire from new when cold with no noticeable performance when hot.
Matt
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Location:
UK
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sat, 16 August 2003 15:13
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Cheers all.. i'll change the next week. Ive been using standard Toyota plats for the last year and they could do with a change..
adi
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Location:
SYDNEY
Registered:
May 2003
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Re: 1JZ plugs.. quick question
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Sun, 17 August 2003 01:29
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Depending on ur copmuter system and how engine is tuned can determine plugs also, The new iridiums r shit, have gone through 3 sets in 3 1/2 months, fowl realy quikly and cause miss fires.
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Location:
Balranald
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sun, 17 August 2003 12:38
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| Soarer wrote on Sat, 16 August 2003 23:11 |
NGK BKR6E-8 gapped to 0.8mm (0.032")
you could also try
NGK BKR7E-8 but they may foul easily being a colder plug.
Don't even bother about platinum. You'll chew them up too quickly.
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Why not go platinum??? I thought they were better??
So I should go the cheaper ones and swap them more often?
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Location:
Wollongong
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Mon, 18 August 2003 11:47
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Platinum/Iridium are fine for stock engines, but if you have a modified turbo engine or plan on doing it, save your $ and go copper/steel plugs. They are like $3 each instead of $30 each.
Modified engines put more stress on the plugs and the exotic ones just can't handle it. I know of a 1JZ that would eat a set of platinums in a weekend... expensive way to drive 
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Location:
UK
Registered:
May 2002
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Location:
Wollongong
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sun, 24 August 2003 01:30
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Just the plain old BKR6E plugs Adi. The -P at the end denotes Platinum which you don't want and I'm not too sure what the -Y denotes.
I am currently running heat range 7 in my 1JZ and haven't had any problems. They will foul easily if you have a stock 1J, but work fine if you have done a few extra mods.
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Location:
UK
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Sun, 24 August 2003 10:13
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I cant get plain old BKR6E ... there has to be another letter at the end of it.. i think Y is split groove.
Cheers for the info.. might try 7 if i can find them.
adi
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Re: 1JZ plugs.. quick question
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Sun, 24 August 2003 11:00
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It might be BKR6E-S
S for steel.
Matt
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Location:
Madrid - Spain
Registered:
August 2002
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Re: 1JZ plugs.. quick question
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Mon, 25 August 2003 01:08
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The S is for STANDARD.
not sure what the Y is for.
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Location:
Balranald
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Mon, 25 August 2003 03:24
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Are the spark plugs easy to change in a 1992 Soarer?
My plug vover loos like the allen key things have been rounded 
I hope that won't make too many problems
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: 1JZ plugs.. quick question
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Mon, 25 August 2003 05:01
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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
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Location:
UK
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Mon, 25 August 2003 10:25
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Cheers... so if im running 1bar on the bigger turbos, presumably im increasing my risk of det and using a colder plug will help prevent this?
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Location:
Wollongong
Registered:
May 2002
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Re: 1JZ plugs.. quick question
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Wed, 27 August 2003 13:14
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Yes, go the heat range 7 if you like. I'm running 7 with only exhaust & intake mods and they are great.
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