E3 plugs on Z06
Thread Starter
Heel & Toe
Joined: Feb 2010
Posts: 16
Likes: 0
E3 plugs on Z06
I have an '07 Z06 and am wondering if anyone has had any issues with the E3 plugs. When I am driving and not accelerating much (almost coasting) the car seems to jump or slightly buck. It does it in any gear but mostly feel it in 5th when I am going about 45. It's not real bad, but gets on your nerves a little. I put the E3s in as soon as I got the car and I'm not sure if the stock plugs were OK. Just curious if anyone else has had this problem.
(Also just started getting the check charging system message at idle and I have heard some plugs can cause this also)
(Also just started getting the check charging system message at idle and I have heard some plugs can cause this also)
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
Have you did a search here on the forum? I have read here many times not to use them as they cause problems with the ignition. I suggest you go back to the stock plugs before you damage something severly.
Melting Slicks
Joined: Oct 2009
Posts: 2,173
Likes: 20
From: Chamblee Ga
Former Vendor
Joined: Jun 2006
Posts: 300
Likes: 0
From: Lubbock Texas
We have had a couple customer's come in with them in their car wanting retunes. Each time it was the plugs causing issues. Went back to standard NGK plugs and problems were solved. There is no way I would install them in a customer's car, much less mine.
Jon
Jon
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
Pure snake oil just like Split-Fire plugs and all the rest of the promise you 50 mpg and 100 more hp stuff. 
Put one in my lawn mower because that's the only brand the Parts Store had that would fit. It was hard to start and never ran right.
Drifting
Joined: Mar 2008
Posts: 1,281
Likes: 3
From: Manahawkin NJ
St. Jude Donor '10
There have been many threads stating issues after installation and resolution once they were replaced with standard plugs.
ErnieO
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
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
Safety Car
Joined: Aug 2007
Posts: 4,836
Likes: 9
From: Rushsylvania Ohio
Don't know that I would call the Split-Fire brand/type snake oil. They are not the same as the E3's. Go do a little research on spark plug history and you will find there have been dual electrode plugs from the very beginning.
Pro
Joined: Oct 2007
Posts: 538
Likes: 1
From: Niles Michigan
Wow! What kind of tune issues. So far after 300 miles no problems
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
You are correct the new Splitfire with the single electrode is probably a decent plug. I was refering to the originals that looked like the E3 with the split ground electrode. They were hyped to do all kinds of wonderful things that didn't happen.
I'm quite aware of multi-electrode plugs, with Bosch being a supplier. If they're so wonderful, why don't car manufactures use them as original equipment? Maybe the fact that the additional electrode size creates a hot spot that can lead to detonation.
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
Because I had a bad experience with Bosch +4 plugs, I'll stay with stock plugs.
When we installed the +4, the engine ran rough and would not rev over 4000 rpm. Replaced them with OEM plugs, and it ran perfect.
Nothing to be gained by changing from the AC Delco plugs, in my opinion.
When we installed the +4, the engine ran rough and would not rev over 4000 rpm. Replaced them with OEM plugs, and it ran perfect.
Nothing to be gained by changing from the AC Delco plugs, in my opinion.
