Spark plug/WOT ping question
Thread Starter
TECH Enthusiast
Joined: May 2005
Posts: 555
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From: Blairsville, GA
Spark plug/WOT ping question Hey y'all.
Back before I knew better, I spent 4 hours putting in a set of Bosch platinum plugs. The car still runs okay and all, but since the lid and plugs, it pings at WOT over 4500 rpm. Then(months later...
) it hit me the other day... would a colder plug take away the pinging???
So ummm, would it? And would anyone happen to know the NGK equivalent heat range of a Bosch platinum plug for stock LS1?
Back before I knew better, I spent 4 hours putting in a set of Bosch platinum plugs. The car still runs okay and all, but since the lid and plugs, it pings at WOT over 4500 rpm. Then(months later...
) it hit me the other day... would a colder plug take away the pinging???So ummm, would it? And would anyone happen to know the NGK equivalent heat range of a Bosch platinum plug for stock LS1?
I would just try a set of NGK tr-55's gapped at .050-.055. No reason to run the platinum plugs unless you're shooting a rap video with an internal engine shot worked in somewhere. 
Is a lid the only you have? Do you spray?
Is a lid the only you have? Do you spray?
I'm not saying that new plugs will fix your problems, but tr-55's at .050 should not be the culprit. Are you running 93 octane?
You might want to try some seafoam/top end cleaner (recent thread about it, do a search).
You might want to try some seafoam/top end cleaner (recent thread about it, do a search).
Thread Starter
TECH Enthusiast
Joined: May 2005
Posts: 555
Likes: 0
From: Blairsville, GA
Yeah, I've posted in that thread... Seafoam didn't help with the ping, but the car ran much smoother. And the lowest I've ever ran in the car was 92... but that was back in the winter time.
I know colder plugs don't really run colder. They just pull heat from the cylinders more than hotter ones with more porcelain in the business end... so they actually run hotter, if you think about it. A shot in the dark, but I'm gonna give it a shot.
I know colder plugs don't really run colder. They just pull heat from the cylinders more than hotter ones with more porcelain in the business end... so they actually run hotter, if you think about it. A shot in the dark, but I'm gonna give it a shot.
