Spark Plugs for SC Vortech
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From: Orange County
Spark Plugs for SC Vortech
What spark plugs are people that have Vortech using and how much gap? I did a search and too many post came up that has nothing to do with spark plugs. Any help would be appreciated.
Joined: Oct 2000
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From: South of the pier, Huntington Beach, CA
Most owners with FI close the gap down a little bit. Some run 0.035, some run 0.032, some less. I'm using Denso Iridium IK22s (factory heat range) some use IK24s or IK 27s (1-2 steps colder than stock.) Copper NGK's are also popular with the change them frequently crowd.
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From: Moorpark, CA
I'm running 0.035 with 2 steps colder NGK copper [Edit: NGK 7405 R5672A-9] and we saw a misfire once in a while in the 8,000 range on the dyno once things got warmed up. Still haven't decided if I'll gap to 0.032 as I heard the stock NA misfires in this range too.
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From: Mother F'in TN
I have ran the NGK 7173's, which are 1 step colder than stock. I didn't have any misfire problems, but I have run into detonation. I just switched to NGK 7405 which are 2 steps colder. Not enough run time on the new plugs to evaluate. I have run the 7173's gapped at .30 and .35 with no difference in performance. currently gapped 7405's at .35
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From: Den Haag
I run stock plugs gapped at 0.35 and have had no problems. I've checked the plugs a few times and they look perfect after a few thousand K's of mixed driving conditions. I was thinking of going to a cooler plug, but for the time being I'm quite happy.
I haven't tracked the car yet so I still might switch to a cooler plug if I get detonation under very hard usage.
I'm not sure about the various extended life plugs (iridium etc.) as long life is not a particular concern for me. I would rather check and change my plugs regulally.
Kevin
I haven't tracked the car yet so I still might switch to a cooler plug if I get detonation under very hard usage.
I'm not sure about the various extended life plugs (iridium etc.) as long life is not a particular concern for me. I would rather check and change my plugs regulally.
Kevin
