How much do I gap my plugs for my 5.3 turbo
#1
How much do I gap my plugs for my 5.3 turbo
I am putting new plugs in and need to know what gap to use on these plugs. I searched and seemed to find different numbers, so I figured it might be specific to each persons setup. I am using NGK TR6's
Thanks in advance.
Justin
Thanks in advance.
Justin
#5
I don't know too much about gapping spark plugs, what is the benefit to the bigger or smaller gap. Can I assume the smaller the gap the less likely the spark will be blown out
#7
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I run the TR6's strait out of the box. I never change the gap. This comes from back in my NASCAR days when our engine builder said you run more of a risk of the electrode breaking off if you bend them. A couple thousands wouldn't make a difference. If they were that far off, then your not using the right plug or it's been damaged (dropped) and shouldn't be ran.
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.025 is awfully tight. You want to run as much as you can without blowing out the spark. How much boost are you running? On a customers bone stock 5.3 we ran .32 @ 20psi and .28 at 26psi. It collapsed a lifter at 26psi.
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What are the symptoms of a spark blowing out? maybe loosing power up top in higer power band...like cutting out or backing down like its pulling timing almost???? Im on BR7's gapped at .35...was on the 7's due to the TR6 being still too hot for my motor when running n2o before we boosted the car....its an LS4 325ci, 5.3L V8