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Copper Core Plugs

wlvrn1215

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wlvrn1215 Senior Enthusiast

wlvrn1215

Posted
Posted

I know the hype about irridium and platnum spark plugs but I know that in race cars and nascar they use copper plugs like NGK and run better...they say that the copper plugs burn more efficient and for 2$ a pop cant go wrong. Last about 32,000 miles, and let you advance timing without spark knock.....anyone else got any imput...

-Devil- Enthusiast

-Devil-

Posted
Posted

i have always used coppers .. (NGK) ... and have no complaints about them ... to me the only reason to use the plats or the other junk is for if you dont feel like changing out the plugs every 25k miles or so ...

cmoore74 Enthusiast

cmoore74

Posted
Posted

I thought I read on this site one or more of the tuners actually suggesting changing to a copper plug as the platinums/iridiums were running rough (I think) with the tune. I see you have a Wait4Me tune. Why not see what they suggest for a plug. I believe they were one of the tuners suggesting copper NGK plugs. I think I recall they had a specific gap suggested as well.

wlvrn1215 Senior Enthusiast

wlvrn1215

Posted
  • Author
Posted

yeah I remember someone suggesting that as well just couldnt find the post...the plug for the LS1 type engine is TR55 but should I use the stock gap? Jesse @ wait4me suggested the same thing...He said the coppers with the tune and eliminate pinging

-Devil- Enthusiast

-Devil-

Posted
Posted

hmm well all cars i have changed over to coppers i normally go up about .020 from what the gap is listed on the sticker ... (less it is already in the .060 range) ..

 

and always have ended up with a smoother idle .. and what seems to be nicer accel .. without the choppy feeling ... kinda hard to explain till you try it yourself ...

cmoore74 Enthusiast

cmoore74

Posted
Posted

Anyone know why GM went from 0.060" to 0.040"? According to AC Delco and NGK they are suggesting the smaller gap for all plugs (iridium, platinum, and copper).

the hammer Enthusiast

the hammer

Posted
Posted

I just posted the same question in a new topic! sorry about that, but I also would like to know. I too use the NGK coppers.

-Devil- Enthusiast

-Devil-

Posted
Posted

most of the auto manufactures ... the only excuse i have been able to get is to help with emissions .. and to keep the cath converter from burning out...

  • 2 weeks later...
silversport Enthusiast

silversport

Posted
Posted

I believe all of these choices are COPPER centers with just a difference in tips...platinum for longer life and iridium for the ability to make a thinner tip...anyone see anything different???

Bill

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