Type of spark plugs
#1
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Join Date: 11-27-11
Location: Bryan, Texas
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Type of spark plugs
Hey guys, I currently own a 09 Cobalt ss turbo with the trifecta tune running @ 23psi. My question to you guys is what type of sparks plugs have been the best for yall running with this setup? My car seems to running a bit rough @ idle, but when I got the car I replaced the plugs with some 1 step colder ones, i dont think my car likes them very much bc sometimes it will misfire when WOT going into 2nd.
So what do you guys think? Im new with this whole turbo thing but I am eager to learn. Ive had the car since Nov, 2011.
So what do you guys think? Im new with this whole turbo thing but I am eager to learn. Ive had the car since Nov, 2011.
#11
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IIRC NGK versions are not pregapped and cost a couple bucks more a plug. I recommend only OEM AC Delco plugs and gap depends on the setup but on a bolted and tuned stock turbo car 0.032" works well. Big turbo cars on high boost need to squeeze the gap down to 0.026-0.028".
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#14
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IIRC NGK versions are not pregapped and cost a couple bucks more a plug. I recommend only OEM AC Delco plugs and gap depends on the setup but on a bolted and tuned stock turbo car 0.032" works well. Big turbo cars on high boost need to squeeze the gap down to 0.026-0.028".
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