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Best Spark plugs?

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Old 03-04-2009, 07:42 PM
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Default Best Spark plugs?

In your experiance, what is the best spark plug for LS1. I am running a NGK TR6 resister. Is this one O.K.? Also Horse Power on a stock 98 LS1 out of an iroc. Yes I know "total newbie".
Old 03-04-2009, 08:12 PM
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For a copper plug a NGK TR 55 is popular. It is one range hotter than your TR6.
Old 03-04-2009, 08:21 PM
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Im also using NGK TR55's thats what Ive used on both of my LS1 cars.

Is there nitrous on the car?
Old 03-04-2009, 08:24 PM
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Most people use TR6's with nitrous is why I ask.
Old 03-04-2009, 10:39 PM
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How about Pulstars...Ive been reading alot on these. Has anyone tried them?
Old 03-04-2009, 10:46 PM
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TR6 baby! Even NA, my Full exhaust and lid a4 car put down 340/350 untuned.
Old 03-04-2009, 11:10 PM
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^^^^Nice
Old 03-05-2009, 05:13 PM
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NO Nos, Not in a car either, It's in my rockcrawler. Thanks for the help..
Old 03-05-2009, 05:25 PM
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Originally Posted by BEEFCURTIN
NO Nos, Not in a car either, It's in my rockcrawler. Thanks for the help..
Thats bad ***! I want to do that swap in my 98 TJ but I dont got the money. By the way its got a 6inch and 35's.
Old 03-05-2009, 06:13 PM
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Everyone says NGK and I am running the TR55's no problems, thinking of swithcing to the TR6, but the machine shop that my buddy works at swears by good old Delco's so its really a personal choice.




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