Which Spark Plugs???
Burning Brakes
Joined: Aug 2001
Posts: 1,238
Likes: 0
From: walled lake MI
for best value go with traditional copper plugs. they won't foul as easily as platinums to boot.
IMO the best plugs are clean (and properly gapped) plugs, and brand is more a personal preference.
i've got NGK's, but others have stated they like their AC's & Bosch's (and many others i'm sure).
IMO the best plugs are clean (and properly gapped) plugs, and brand is more a personal preference.
i've got NGK's, but others have stated they like their AC's & Bosch's (and many others i'm sure).
Thread Starter
Safety Car
Joined: Jul 2001
Posts: 3,833
Likes: 0
From: Orange County California
Temest, that exactly the type of reply I was looking for! I seem to remember nathan plemens saying that he prefered not to use platinum... but I couldnt really remember why... then there are those that say get platinum... I think I will get copper. Im all about keeping running cost down. Things break too often as it is!
Thanks!
Thanks!
Le Mans Master
Joined: Oct 2003
Posts: 6,130
Likes: 2
From: seattle WA
AC Delco, there has been several posts about the platinums being junk, along with some of the other more expensive type of plugs.Some have reported pellets coming off. And I've heard from other vette owners their cars even seem to run better with AC's-that's what I run and I'm very satified with them. As far as cut back plugs, I understand it's a waste of time, unless you're running in the 5000 RPM range. 
Race Director
Joined: Jul 2004
Posts: 16,795
Likes: 62
From: Lake Havasu City, AZ
Like almost every replacement or aftermarket part... it's all about personal preference.
I've been using Bosch platinum plugs in all my cars(12) since 1986 with great results (smoother idle, better gas mileage) and no problems. So I stick with them. Others are happy with copper and stick with them.
I've been using Bosch platinum plugs in all my cars(12) since 1986 with great results (smoother idle, better gas mileage) and no problems. So I stick with them. Others are happy with copper and stick with them.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
Instructor
Joined: May 2001
Posts: 186
Likes: 0
From: Midwest
Would I try to talk anyone out of such plugs, no but I always use standard copper core plugs for my street and race applications. The main reason that manufacturers use exotic metal plugs is because the tips don't wear as fast thus getting them thru their long federally mandated emissions warranty periods. Technically copper is a better conductor of electricity. I have never seen consistant documented scientific proof of better performance of these expensive plugs and I would rather change plugs that eventually get contaminated more often anyway. Unlike many that got sucked into marketing hype such as the SplitFire plugs, I will go just as fast for less.
EJ
EJ
Safety Car
Joined: Jun 2003
Posts: 4,509
Likes: 240
From: Coconut Creek FL
I just put Bosch Platinum's in my 94 LT1- as mentioned above- Its a preference as to plug type (just like oil) I have used these plugs on every car I changed plugs on and have never had an issue...they were like $1.50 each....
Its also a good idea to use good wires, and good coil...keep the spark clean and consistant and plugs are plugs! Just my 2 cents!
Cheers...
Its also a good idea to use good wires, and good coil...keep the spark clean and consistant and plugs are plugs! Just my 2 cents!
Cheers...
