whats the best plugs to get

[quake]

NGK iridiums and wires have performed flawlessly for me in all of my Supras. I usually only measure the gap to make sure it's within reason (all have been pretty consistent) - haven't noticed any issues just dropping them in :dunno:.

you won't until something goes wrong. Or wrong long enough

 

[dugums]

you won't until something goes wrong. Or wrong long enough

Well, all the ones I have measured have been right at .032" - so what would you have me do? You can warn something is going to go wrong, but I have never had an issue while driving aggressively or even during tuning.

All I am saying is that I have used these plugs in many cars and I have been very happy with them. Maybe I am just lucky, but I have never had to fiddle with them nor have I had them crap out prematurely like I have with other types of plugs.

I'm not saying these are "the best". There are plenty of different plugs that will get the job done.

Why would I change the gap on my plugs if they measure .032" and I am having no issues? :dunno:

 

[quake]

Well, all the ones I have measured have been right at .032" - so what would you have me do? You can warn something is going to go wrong, but I have never had an issue while driving aggressively or even during tuning.

All I am saying is that I have used these plugs in many cars and I have been very happy with them. Maybe I am just lucky, but I have never had to fiddle with them nor have I had them crap out prematurely like I have with other types of plugs.

I'm not saying these are "the best". There are plenty of different plugs that will get the job done.

Why would I change the gap on my plugs if they measure .032" and I am having no issues? :dunno:

my concern is not the gap. The gap is relative to the car. You try to run the largest gap you can get away with without misfire. My concern is something that small in the chamber getting hot and pre igniting the fuel. Maybe you run rich enough to keep the cyl cool, maybe you have not stayed on boost long enough to do any real damage, maybe it's causing light detonation and the car is pulling timing, maybe maybe maybe. Do you really want to risk your motor on a maybe? run a copper plug one heat range colder advanced autoparts: ngk- bkr7e11 stock#1283

 

[dugums]

my concern is not the gap. The gap is relative to the car. You try to run the largest gap you can get away with without misfire. My concern is something that small in the chamber getting hot and pre igniting the fuel. Maybe you run rich enough to keep the cyl cool, maybe you have not stayed on boost long enough to do any real damage, maybe it's causing light detonation and the car is pulling timing, maybe maybe maybe. Do you really want to risk your motor on a maybe? run a copper plug one heat range colder advanced autoparts: ngk- bkr7e11 stock#1283

I have my car tuned fairly well, so I'm really not running overly rich at any point. I keep a pretty close watch on everything, and so far, no issues. I am certain however, that I do not drive as aggressively as some people here.

I also have never heard a first-hand account of the dangers you describe related to a properly tuned mkIII Supra.

Are you speaking from experience, or just in theory?

I completely understand your warning - it's not the first time I have heard it. I definitely appreciate you putting out there so that we know the risks. I am curious if anybody has first-hand knowledge of this becoming a problem in our cars.

I assume EGT's would have something to do with causing the condition you are referring to. Is this correct? If so, are you aware at what temperature this starts to be a problem.

 

[quake]

post from Ij:

I had problems with them glowplugging at high boost sustained top end pulls that went away with the same heat range/gap coppers.
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sent u a pm

 

[starscream5000]

What works for one person may not work for someone else, especially if one person is using propane fuel only and the other is using gasoline...