the best spark plug


Crease! said:
i use NGk plugs...and set the gap slightly wider for a better spark and burn :)
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Thats pretty bad info, most people actually reduce the gap for a much stronger but smaller spark, increasing the gap will increase the chance of misfire, make the spark a bit bigger but much weaker, that's NOT what you want on a high revving engine.
 
whatever plug you decide to get. Just make sure you get a sparkplug that is resistive (OEM ones are like this)

non resistive plugs create a lot of noise that can cause sensors to read incorrectly leading to misfires or in worst case scenarios sensor damage. This is info given directly from hondata who have discovered this to be a major cause of datalogging not working on hondata systems etc.

Platinum plugs are a good idea to use mainly because as the temperature rises, conductivity of regular metals such as copper begin to lose conductivity. Fresh copper plugs may provide slightly better performance in the beginning but Platinum plugs will go the distance and offer a more stable spark over the duration of its lifetime.

Whatever the case, for Hondas specifically, a resistive spark plug that is gapped properly and indexed properly (opening of the plug facing either the intake valves or the exhaust - this depends on your setup/petrol quality etc.) is the best regardless of brand.
 
RagingAngel said:
Whatever the case, for Hondas specifically, a resistive spark plug that is gapped properly and indexed properly (opening of the plug facing either the intake valves or the exhaust - this depends on your setup/petrol quality etc.) is the best regardless of brand.
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NEVER THOUGHT OF THIS BEFORE, SUPPOSE TO CHECK THIS YOU COULD MARK WHERE TEH OPENING IS ON TEH NUT PART OF TEH PLUG AND CHECK WHERE IT IS ONCE ITS INSTALLED, IF WRONG, PULL OUT AND THREAD IN AGAIN ? :nice:
 
sorry to hijack this thread but are Denso iridium ik22 any good?
 
i thought that denso's was the best but ppl here seems to have different opinion.
i use ngk and at my next service i'll use again ngk bkr7e :)
 
I thought Honda used NGK sparks as their OEM plugs or is that only for UK models?
 
I'm using denso iridiums ik22 i think they are? Seem grand to me. Also note that denso make plugs for all the big brands too ie. HKS, Trust, TRD, Blitz etc...
 
i use these spark plugs:





it's NGK IRIDIUM BKR7E IX-11 :D

how they look ?

 
They looked mine when I used the same plugs. I changed to NGK copper standard ones and looked much better - whiter and no fouling.

They did a pretty good job at marketing on the iridiums, do you need something that costs upto 5 times the price of a standard plug? Is it really jusitified for only the extra life, if it lasts 50,000km?
Do you really change it only at 50,000+km? I doubt it.
This has just changed the commodity plugs to some fashion item where the manufacturer's are making money.
Marketing can make anything seem better than they are, data can be warped, scales are enlarged where a miniscule quicker acceleration can be multiplied. Did they say in the small print - same environment, same driver, same fuel, same temperature etc?

I tried them all and finally gone for standard NGKs - but they still got money though in the end.
________
LIVE ***
 
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i went today to buy new spark plugs and the seller showed me
ngk bkr7e-n-11
i know that 11 is the 1,1 gap but what is the n about ?
 
i've tried both brands' iridium spec & ngk seemed to fare better than denso in term of durability. denso begins misfiring at only 10k km while ngk d wrapped up 20k & still going strong.
 
abunai888 said:
i went today to buy new spark plugs and the seller showed me
ngk bkr7e-n-11
i know that 11 is the 1,1 gap but what is the n about ?
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the N stands for a strong ground electrode design
 
chet baker said:
the temperature range refers to how much heat the plug can remove from the combustion chamber

lower number plugs remove less heat than higher number plugs, its generally recommended to move up 1 heat range for each major mod to your car: turbo, nitrous, supercharge, high compression all move it up one heat range.

I tried the NGK laser platinum I didn’t feel any different so I went back to the NGK BKR7E $8 works great
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a spark plug is said to be hot if it is a better heat insulator, keeping more heat in the tip of the spark plug. A spark plug is said to be "cold" if it can conduct more heat out of the spark plug tip and lower the tip's temperature.

its hard to explain but the higher the number the colder the plug

the only reason you would get a low numbers plug like an 5 is to stop the tip reaching really high temperatures

this is a common myth that the ascending order of the numbers means more heat
 
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Fin said:
sorry to hijack this thread but are Denso iridium ik22 any good?
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I had denso Iridium ik22 for about 10k, and the white part became loose and spun free, compression was blowing trough the inside of the spark plug. I sent them to denso they said I over tightened them, but I tightened them to 20lbs to Honda manual specks. So they never refund my money. So now I put my 5 year old NGK BKR7E and they run fine.
 
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I just changed my plugs yesterday and it had ik22's in from Japan. Car seemed to run fine so no complaints really!

It is now on ngk's though!
 
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