Boosted members: colder plugs?

chargerrob1977 · Mar 23, 2017

So Since I'm digging in anyway and replacing the fuel injectors as part of my procharger install, figured I would take the opportunity to test/replace the coil packs if required and maybe change out the plugs.

Do you guys using boosted applications/nitrous run a colder plug, or gap differently, or just stock?

charonblk07 · Mar 23, 2017

Stock plugs will work if you're staying around 6psi but your best options is one stage colder with the D1SC. If you are changing out coils make sure you get stock coils from a 14+ when they made the swap from copper plugs to platinum, the coils have a higher output voltage which will help prevent blowout on stock gapped plugs. I run the Denso 3381 plugs for daily driving gapped at .028" but start at .030" as most trucks are happy at that gap. If you have high rpm stutter then you're probably blowing out the spark plug and you'll need to tighten the gap.

Boosted members: colder plugs?

chargerrob1977

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charonblk07

Senior Member

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