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What plugs to run

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Old Jun 15, 2016 | 03:49 PM
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Default What plugs to run
Hello,

So I'm sure it's been beaten to death but I wanted to know what the experienced guys think about spark plug selection. I've been an ngk fan myself but don't have much experience with LS's. I'm running a 5.3 and about to slap on a mp112. Is NGK still the best route and what plugs do you recommend on n/a cars and boosted cars. Car is in SoCal.

Thanks for any help here!
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Old Jun 15, 2016 | 04:00 PM
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tr6 ngk
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Old Jun 15, 2016 | 04:18 PM
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Originally Posted by Mavn
tr6 ngk
So NGK's are still the better choice. Thank you for the response

What would happen if you ran a regular plug on a boosted setup?
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Old Jun 15, 2016 | 04:35 PM
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you could run a br7
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Old Jun 15, 2016 | 04:52 PM
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Originally Posted by Mavn
you could run a br7
Ok. What's the difference between the tr6 and the br7?

I do appreciate your help.
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Old Jun 15, 2016 | 05:18 PM
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Tr6 is one step colder than stock and has a projected tip. Br7 is two steps colder and is non projected
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Old Jun 15, 2016 | 07:03 PM
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Originally Posted by HCI2000SS
Tr6 is one step colder than stock and has a projected tip. Br7 is two steps colder and is non projected

Great. I appreciate the info. So how does the temperature and the projected tip vs non projected tip effect performance? Just trying to learn all I can.
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Old Jun 16, 2016 | 04:05 PM
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Originally Posted by Mavn
you could run a br7
^^^this x2
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Old Jun 16, 2016 | 04:40 PM
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NON-PROJECTED tip BR7...NGK makes a projected and non-projected BR7.
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Old Jun 16, 2016 | 08:55 PM
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he doesn't need a 7, 6s is just fine
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Old Jun 16, 2016 | 09:02 PM
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Originally Posted by FourG63 97GST
he doesn't need a 7, 6s is just fine
a positive displacement the blower car that's going to have sky high iats like mp112s are known for can absolutely benefit by running a colder plug and a 7 instead of a 6.
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Old Jun 17, 2016 | 02:24 AM
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I run LS7 iridium plugs with my TVS2300 w/meth and they are excellent. They are one range colder and last forever: ACDELCO 41104
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Old Jun 20, 2016 | 01:50 AM
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That's everyone. I didn't even consider the higher IATs in that aspect and how it related to plug heat. Makes a lot more sense now!
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