What plugs to run

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Jun 15, 2016 | 03:49 PM

moto67

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From: Anaheim, CA

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!

Jun 15, 2016 | 04:00 PM

Mavn

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From: Houston

tr6 ngk

Jun 15, 2016 | 04:18 PM

moto67

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Quote:

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?

Jun 15, 2016 | 04:35 PM

Mavn

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From: Houston

you could run a br7

Jun 15, 2016 | 04:52 PM

moto67

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Quote:

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.

Jun 15, 2016 | 05:18 PM

HCI2000SS

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From: Howell & Fenton MI

Tr6 is one step colder than stock and has a projected tip. Br7 is two steps colder and is non projected

Jun 15, 2016 | 07:03 PM

moto67

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Quote:

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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Jun 16, 2016 | 04:40 PM

ddnspider

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NON-PROJECTED tip BR7...NGK makes a projected and non-projected BR7.

Jun 16, 2016 | 08:55 PM

#10

FourG63 97GST

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he doesn't need a 7, 6s is just fine

Jun 16, 2016 | 09:02 PM

#11

ddnspider

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Quote:

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.