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Old 10-05-2009, 11:04 PM   #31
enkeivetteenkeivette is offline
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Also, your comp needs to see the error so many times before it will throw a code. So if the plugs don't fix it, keep driving it, you'll see the code sooner than later.
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Old 10-05-2009, 11:29 PM   #32
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Quote:
Originally Posted by enkeivette View Post
Also, your comp needs to see the error so many times before it will throw a code. So if the plugs don't fix it, keep driving it, you'll see the code sooner than later.
Like these?
http://www.summitracing.com/parts/FRM-5245/?image=large

At that price I could just change them with the oil.
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Old 10-05-2009, 11:35 PM   #33
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Quote:
Originally Posted by Vettezuki View Post
Like these?
http://www.summitracing.com/parts/FRM-5245/?image=large

At that price I could just change them with the oil.
Yuppers. You might want to go a few steps colder if you have problems with pinging.

I run the... 3923s I think.
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Old 10-05-2009, 11:43 PM   #34
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BTW, Wolfram Alpha is one of the coolest information engines on the interwebs.

http://www22.wolframalpha.com/input/...m+vs.+platinum
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Old 10-06-2009, 12:03 AM   #35
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If those are your plugs I would guess that 5244 would be one step colder, 5243 two steps.
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Old 10-06-2009, 12:22 AM   #36
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Quote:
Originally Posted by enkeivette View Post
If those are your plugs I would guess that 5244 would be one step colder, 5243 two steps.
Nothing with those numbers. . .
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Old 10-06-2009, 12:35 AM   #37
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Quote:
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Nothing with those numbers. . .
Jump on LS1forum or call Autolite then. My plug numbers were sequential.
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Old 10-06-2009, 12:38 AM   #38
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Im running the NGK TR-55s in the GTO amd I love them. i changed them out at 45k and noticed better throttle response over the factory ACDelcos. I recommend those.

Also, what gap are you running?
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Old 10-06-2009, 01:38 AM   #39
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Quote:
Originally Posted by Damian View Post
Im running the NGK TR-55s in the GTO amd I love them. i changed them out at 45k and noticed better throttle response over the factory ACDelcos. I recommend those.

Also, what gap are you running?
.040 is stock.

My AC iridiums were toast at less than < 10k miles. I think I'll try the AutoLite and just check them with each oil change and see how that goes.
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Old 10-06-2009, 02:02 AM   #40
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Quote:
Originally Posted by enkeivette View Post
Jump on LS1forum or call Autolite then. My plug numbers were sequential.
I used this guide:
http://www.power-21.com/AutolitePowe...eHeatRange.pdf

One colder for the 5245 is 5144. Go figr. I'll give these a whirl.
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