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Old 12-01-2013, 06:42 PM   #1
Brownster
 
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Spark Plugs

I was wondering if anyone has the AC Plugs with the dual platinum electrodes or another high performance plug in a stock ZL1.
Was also curious if indexing the plugs in a ZL1 was worth the effort.
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Old 12-01-2013, 11:18 PM   #2
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I asked my tuner about changing my plugs, he said they are fine, unless I get up to like 800HP
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Old 12-02-2013, 07:19 PM   #3
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I put in a set of pulstar, nice plugs. Do some research you will appreciate them. Also If you want them you need to order them for a 2012 because I do not think they list them for anything newer, but they will be the same plug.
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Old 12-02-2013, 07:46 PM   #4
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Originally Posted by Emvici View Post
I put in a set of pulstar, nice plugs. Do some research you will appreciate them. Also If you want them you need to order them for a 2012 because I do not think they list them for anything newer, but they will be the same plug.
Would these be considered a mod and void warranty?
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Old 12-03-2013, 07:11 AM   #5
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plugs that came in the car will last 100k miles and really don't need changed unless youre modding
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Old 12-04-2013, 05:24 PM   #6
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according to the maintenance guide I got mailed to me from Chevy it says ZL1 only replace spark plugs at 60k miles
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Old 12-08-2013, 08:51 AM   #7
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Originally Posted by yellow69z28rs View Post
I asked my tuner about changing my plugs, he said they are fine, unless I get up to like 800HP
I have to disagree with this statement...

Going one step colder to a TR7IX is completely warranted when going above 600rwhp, or for that matter in any car running more boost in warmer climates. Go ahead and try running the stock plugs at 700hp and see what happens when the tip gets blown down into the cylinder. Doing this cost a ZR1 owner that I know a new shortblock out of his own pocket. When he posted up what happened in the forum the first response to his thread was - what the hell were you thinking even trying to run the stock plugs with that much boost?

But I'm aware that there are some proponents of running the stock plugs in super high hp applications on this board. I'd be sure that they are going to fix your motor at their expense when it goes out from detonation
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Old 12-08-2013, 10:21 AM   #8
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Originally Posted by lsxtuner View Post
I have to disagree with this statement...

Going one step colder to a TR7IX is completely warranted when going above 600rwhp, or for that matter in any car running more boost in warmer climates. Go ahead and try running the stock plugs at 700hp and see what happens when the tip gets blown down into the cylinder. Doing this cost a ZR1 owner that I know a new shortblock out of his own pocket. When he posted up what happened in the forum the first response to his thread was - what the hell were you thinking even trying to run the stock plugs with that much boost?

But I'm aware that there are some proponents of running the stock plugs in super high hp applications on this board. I'd be sure that they are going to fix your motor at their expense when it goes out from detonation

I agree. I put the TR7IX in my ZL1 with 14 lb boost and used the perfectly good stock ZL1 plugs in my heads and cam LS6 Z06. And they improved drivability in the Z06 which did have TR6's in it.
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Old 12-08-2013, 02:41 PM   #9
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Originally Posted by ZO6 Bryan View Post
I agree. I put the TR7IX in my ZL1 with 14 lb boost and used the perfectly good stock ZL1 plugs in my heads and cam LS6 Z06. And they improved drivability in the Z06 which did have TR6's in it.
Funny you say that - I used the plugs out my of 14' CTS-V in my cammed 12' C6 A6 Grand Sport and they work great. Much smoother idle than the TR6 that were in there before
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