Spark Plugs

[Cruzin]

Hi Guys,
I was wondering if anyone on site has used anything but AC Delco Spark plugs (FR2ls) in their ZR-1's ? Thinking of changing to Platinum plugs but was informed they would not provide any performance increase. I know, I require Headers and different gears in rear end to help increase the H/P but every little bit helps. Thank you.

 

[Riley P]

Send a PM to Bearly Flying. He should be able to help you out as a fellow C4 ZR-1 owner.

 

[Cruzin]

Thank you. I shall PM Bearly Flying

 

[Bearly Flying]

I seem to recall reading something about that. I believe the AC Delco's were the better choice. I will see if I can find the article.

 

[Bearly Flying]

Can't find the article I was thinking of, but after reading several threads on it. it appears the consensus is split.

Copper core plugs conduct electricity slightly better than the Iridium's, but do not last as long.

So two different schools of thought, replace the cheap AC Delco's more frequently or spend more money for the Iridium's to extend the useable life.

I could not find any performance gain/loss referenced. ( other than seat of the pant's, these are better because.....)

 

[CCO]

Pretty sure our guy Manny (Nasty98) recommends OEM all the way.
A quick PM to him would clarify that for you.

C.