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Discussion Starter #1
I am putting a vorthech v3 si-trim blower on my car and was wondering about spark plugs.. is it like nitrous in which you want to run like 2 steps cooler of spark plugs to reduce detenation or is it reli no big deal. I am going to only be running 8 psi about and be running a wideband to watch air to fuel so was jwing if this is necessary to buy cooler spark plugs?? any info is greatly appreciated
 

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I about 11 psi with aluminum heads and use a stock plug. Most people suggest at least one range colder.
 

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you could even go to a smaller gap than that, like .032
 

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Discussion Starter #5
ok thankyou so close the gap down a few? and dont go a step cooler or should i buy cooler ones?
 

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a cooler plug would not hurt
 
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