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Spark plug question


Keithchue
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in my opinon....stock copper plugs are good enough as Copper is a better conductor of eletrictiy than Iridium...so if you change spark plugs on every 10k servicing, go for stock ones. one piece only $3+

 

Iridium are for people who drag till 50k before changing plug

 

That is why even iridium plugs are also using "copper core" but centre electrode uses iridium, the smaller diameter of the centre electrode concentrate the spark which also lower the voltage required to jump the gap.

 

So not true that copper plugs will perform equally compare to iridium under any condition or mileage. That is why most OEM are specifying more iridium as stock equipment for better emission and FC.

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That is why even iridium plugs are also using "copper core" but centre electrode uses iridium, the smaller diameter of the centre electrode concentrate the spark which also lower the voltage required to jump the gap.

 

So not true that copper plugs will perform equally compare to iridium under any condition or mileage. That is why most OEM are specifying more iridium as stock equipment for better emission and FC.

OEM give us iridium spark plug because we pay for the iridium spark plugs gimmicks. Actually copper electrode spark plugs also can shaped with small diameter centre electrode. In fact simpler if we just file the centre electrode to work like needle [laugh] My previous Kelisa did not even had to gap the spark plugs [lipsrsealed]

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OEM give us iridium spark plug because we pay for the iridium spark plugs gimmicks. Actually copper electrode spark plugs also can shaped with small diameter centre electrode. In fact simpler if we just file the centre electrode to work like needle [laugh] My previous Kelisa did not even had to gap the spark plugs [lipsrsealed]

 

 

Yes, in fact you can file your copper centre electrode from 2.5mm to 0.4mm, then you will have "DIY fine wire copper" plug. post picture for us here once you done it ok.

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