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Old May 1, 2012 | 07:58 PM
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Default nitrous spark plugs?
hello does anyone know what heat range plugs on a ls1 for nitrous 100-150shot?
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Old May 1, 2012 | 11:19 PM
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BR7EF which is ngk#3346.
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Old May 2, 2012 | 08:50 AM
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do you know the heat range?
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Old May 2, 2012 | 08:54 AM
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BR7EF is a 7 heat range which the number 7 in the part description tells you.
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Old May 2, 2012 | 12:26 PM
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i think they are 2 heat ranges colder than stock
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Old May 2, 2012 | 12:30 PM
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Run a BR7EF like already mentioned. It is a non-projected plug which is suitable for nitrous/boost. Remember OP when in doubt run the colder plug.
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Old May 2, 2012 | 12:58 PM
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Ngk tr-6
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Old May 2, 2012 | 02:43 PM
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I ran a tr6 and went a full tenth slower. Ngk recommends one heat range colder for every 75hp of nitrous added. So with that being said. A 100 shot needs 2 ranges colder. Which is a 7 plug and a non projected tip.
I would Not recommend a tr6. It's to hot and will cause detonation.
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Old May 2, 2012 | 06:35 PM
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Originally Posted by need2speed94
Ngk tr-6
Although I love and agree with your signature 100% I don't agree with that plug selection.

BR7EF
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Old May 3, 2012 | 09:10 AM
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BR7ef 3346's is where you need to be. As long as you haven't changed compression.
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Old May 3, 2012 | 12:17 PM
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I'm running TR6 plugs.. I'm changing to ngk#3346... Is the plug gap still .038???
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Old May 3, 2012 | 05:12 PM
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Chris@NitroDaves
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Gap the 7's [ Stk# 3346 ] around 33-35
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Old May 4, 2012 | 12:07 PM
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Thanks Chris
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