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Old 03-19-2006, 01:49 AM   #11
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Your KR is too extreme to be from plugs, particularly during winter. Plugs may fix 2-3 degrees of KR at the most. And you're not running boost to the point that you'd need 2 heatranges colder, except MAYBE in the summer.

You have more serious problems that we need to fix. Your car should be fine with TR55'* this time of year.
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Old 03-19-2006, 12:43 PM   #12
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go to http://www.sparkplugs.com/
go to advanced tuners and you can find the p/n for plugs 1,2,3 or 4 heat ranges colder
i like the tr55-ix 1 heat range colder than stock.

ROD
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Old 03-19-2006, 02:47 PM   #13
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Quote:
Originally Posted by willwren
Your KR is too extreme to be from plugs, particularly during winter. Plugs may fix 2-3 degrees of KR at the most. And you're not running boost to the point that you'd need 2 heatranges colder, except MAYBE in the summer.

You have more serious problems that we need to fix. Your car should be fine with TR55'* this time of year.
I agree, that has been nagging me for a long time now.
I can't understand why i have massive KR with the 2.2, but as soon as I re-install my 2.55 its gone, compleatly, and all speeds in all gears.
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Old 03-19-2006, 08:22 PM   #14
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How much boost are you running? If your at 11-12+ I'd run two heat range colder plugs. If you don't mind changing your plugs then I'd run Autolight coppers. I've had better luck with them and dealing with KR the NGK'*.
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