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Are these the right plugs for me?

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Old Jan 16, 2011 | 10:16 PM
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Default Are these the right plugs for me?

Guys I bought a set of BR7EF plugs for my car. Its currently getting a head and cam swap done to it in my garage. I also want to be able to spray some nitrous on top of this. I'm looking at anywhere between 435-450 hp without any nitrous. A 100 horsepower shot is the max I will do after the head and cam install. Where should I gap these plugs if they are the right ones for me? 35?
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Old Jan 16, 2011 | 11:16 PM
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that's what i have mine gapped to
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Old Jan 17, 2011 | 08:33 AM
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NGK says 1 heat range for every 75hp of shot.

So Yes they are the correct plugs for the 100 shot.

I run them in my 408 up to 150 shot and it loves it.
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Old Jan 17, 2011 | 11:09 AM
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http://ngk.com/charglossary.asp?kw=Heat+range

good read for you!
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Old Jan 18, 2011 | 07:34 AM
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That is a good read and is along my belief that at worst a too cold of plug would foul it up but not damage the motor and then you know your tolerence. Some big Nitrous cars will "warm up" on plugs that would normally blow up on a Nitrous run but swap for the appropriate plug for the actual run.

So there in lines a balance you need to strive for.
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Old Jan 18, 2011 | 11:31 AM
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I hope you have a window switch and an aftermarked ignition to cut the spark only at rev limit, else you will push the engine too lean...
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Old Jan 18, 2011 | 05:53 PM
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LOL @ 100 shot is the max you'll do. First time out you're gonna spray the 100shot a few times and wonder how a 125 shot feels and then how a 150 shot and so on. Best thing you can do is not lie to yourself and plan on eventually trying a 150shot and having the right plugs in place already.

I'd go with the BR8EF's... 3 steps colder than stock.
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Old Jan 18, 2011 | 10:35 PM
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Originally Posted by 1BadAzzWS6
LOL @ 100 shot is the max you'll do. First time out you're gonna spray the 100shot a few times and wonder how a 125 shot feels and then how a 150 shot and so on. Best thing you can do is not lie to yourself and plan on eventually trying a 150shot and having the right plugs in place already.

I'd go with the BR8EF's... 3 steps colder than stock.




i just installed the b7's... i had the tr6's and they looked great after i pulled them out after a few bottles on a 150 shot...but IMO the b7s needs to be the norm when your spayin any shot 150 or less.
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Old Jan 19, 2011 | 09:22 AM
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Originally Posted by Brett777
I hope you have a window switch and an aftermarked ignition to cut the spark only at rev limit, else you will push the engine too lean...
WTF?
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