Tr6 or tr8???
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Joined: Feb 2008
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From: Waco, Tx
Depending on how much you want to spray and what has been done to the engine, the TR6 is good to about 75hp with bolt-ons. If your going to do 100-200 I would go with the NGK BR7EF. 250+ go with the NGK B8EFS. There is no TR7 or TR8. The TR6 is a projected plug and you will have better luck with a non-projected plug such as BR7EF or B8EFS
There is a great way to answer it. TR6 is not a nitrous plug. As far as which nitrous plug is better, there are too many variables to say. It all depends on what your engine wants.
Whats your motor and nitrous setup?
Whats your motor and nitrous setup?
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Teching In
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depending on how much you want to spray and what has been done to the engine, the tr6 is good to about 75hp with bolt-ons. If your going to do 100-200 i would go with the ngk br7ef. 250+ go with the ngk b8efs. There is no tr7 or tr8. The tr6 is a projected plug and you will have better luck with a non-projected plug such as br7ef or b8efs
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Teching In
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i have a 5.3l full bolt-ons cnc 243 custom cam cold fusion nitrous Plate setup 200 shot
Start tuning with at least an -8. I'm assuming you're trying to get a big heavy truck moving and probably on pump gas. You may end up back at a -7 when it's all said and done, but you'll be safer until you get to that point.
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-8 of ???
Last edited by gtrucks; Aug 4, 2009 at 01:50 PM.
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