spark plugs

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07-16-2015, 05:05 AM

sTNT971

Staging Lane

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spark plugs

Hi all
I have two trucks 5.3 one of them turbo and the other one supercharged radix 1900

I'm using acdelco spark plugs it's working 4-6 months after that it come black so I need the best plug I can using it with my two trucks

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07-16-2015, 05:30 AM

Low_LSX

Formerly Low_LQ4 - 6/6/10

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NGK TR6 Plugs.

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Originally Posted by sTNT971

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07-16-2015, 06:32 AM

Byrdman11

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Ngk heat range 6 or 7 all depends combo.

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07-16-2015, 08:07 AM

George C....

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lately i just run br7ef in the boosted combos

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07-16-2015, 09:42 AM

03sierraslt

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Depends on boost level, I use BR7ef at 14-15psi

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07-16-2015, 10:34 AM

TURBHOE

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so far my best running combo for idle and DD has been the stock ls9 plugs. I tried the 7's but they were really hard to get to idle smooth. 6's were a bit too warm. tried the LS9 plugs and now I can use less timing at idle with great throttle response.