2.0L LNF Performance Tech 260hp and 260 lb-ft of torque Turbocharged tuner version.

What Spark Plugs Should You Use On LNF?

Old 06-12-2016, 11:28 AM
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What Spark Plugs Should You Use On LNF?

This question has been asked so many times, so I'm just gonna make this a sticky.

Stock Ac-Delco Plugs Gapped to .032. 41-108. 4 Of Them.

Last edited by tomj77; 06-12-2016 at 11:33 AM.
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Old 06-12-2016, 08:40 PM
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Ngk makes a good iridium plug. Thats all i run
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Old 06-13-2016, 07:23 AM
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Originally Posted by Omiotek View Post
Ngk makes a good iridium plug. Thats all i run
Stock AC Delcos are made by NGK.
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Old 06-13-2016, 07:24 AM
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Yes i know. I usually run a step colder. Forgot to mention that. I also usually run higher boost then most
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Old 06-13-2016, 07:55 AM
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Originally Posted by Omiotek View Post
Yes i know. I usually run a step colder. Forgot to mention that. I also usually run higher boost then most
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Old 06-13-2016, 01:48 PM
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I run 28 psi and I use stock. I used one step colder once, engine sounded gurglly
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Old 06-14-2016, 03:12 PM
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Just did mine and went with stock Acdelco's.
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Old 06-14-2016, 06:08 PM
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Originally Posted by ionRL_585 View Post
Just did mine and went with stock Acdelco's.
Those seem to be the best for most anyone. Pay attn to the gap.
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Old 06-14-2016, 06:23 PM
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Originally Posted by 63 Nova SS View Post
Those seem to be the best for most anyone. Pay attn to the gap.
Indeed. Mine were off right out of the box. Use a feeler gauge.
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Old 06-16-2016, 10:08 AM
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Originally Posted by 63 Nova SS View Post
Those seem to be the best for most anyone. Pay attn to the gap.
Mine were all 030-032 out of the box so i didn't touch them. Quick install. Too bad I found oil on one plug during removal. No misfires or running rough. Hopefully just a spark plug well gasket.
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Old 06-19-2016, 07:58 PM
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Originally Posted by umrdyldo View Post
Mine were all 030-032 out of the box so i didn't touch them. Quick install. Too bad I found oil on one plug during removal. No misfires or running rough. Hopefully just a spark plug well gasket.
compression test
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Old 08-22-2017, 03:35 PM
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Is there a 1 step colder option anywhere?
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Old 08-22-2017, 04:06 PM
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For lnf just the oem plugs
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Old 10-13-2018, 02:20 PM
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So are copper plugs a thing of the past? i know iridium plugs last longer. I just always bought copper plugs for my LSJ, i just assumed it would be the same for the LNF because they burn better and have better conductivity.
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Old 10-13-2018, 06:15 PM
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Nothing works better than OEM plugs for a lnf. Also sometimes its best to re-gap them to .032-.030 to avoid spark blowout when tuned or are tuned

Last edited by Snail_SS; 10-13-2018 at 08:56 PM.
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Old 10-13-2018, 06:17 PM
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He is trying to say you may need to regap plugs to .030.-032.
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Old 10-13-2018, 08:33 PM
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Ok I’ll take y’alls word for it, i just never used iridium plugs before
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Old 10-13-2018, 08:55 PM
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Originally Posted by 63 Nova SS View Post
He is trying to say you may need to regap plugs to .030.-032.
yup that just didnt want to give numbers because I didnt remember what it was lol
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Old 10-14-2018, 07:17 AM
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Spell check changed your "regap" to "regal", just didn't want him to get confused. I see you edited it.
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Old 10-14-2018, 07:04 PM
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Actually I've seen guys having problems with at the 600whp levels using copper plugs on a lnf and playing with gaps because of spark problems at high levels of boost
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Old 04-16-2019, 07:39 AM
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I started using ngk one step colder from stock. Same plug but a step colder. They work very well. Will post the number later
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Old 04-16-2019, 10:22 AM
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Originally Posted by tomj77 View Post
I started using ngk one step colder from stock. Same plug but a step colder. They work very well. Will post the number later
What was the reason from going one step colder? Are you stock or running some mods? I just bought the stock ones you posted originally
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Old 04-16-2019, 10:46 AM
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Originally Posted by AfterShok View Post
What was the reason from going one step colder? Are you stock or running some mods? I just bought the stock ones you posted originally
He has a big boy turbo
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Old 04-16-2019, 01:36 PM
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Originally Posted by ECaulk View Post
He has a big boy turbo
bet that thing is wicked
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Old 04-18-2019, 07:44 AM
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Like he said, big boy turbo with big boy boost lol. Definitely helps with knock in combination with direct port meth. Run 6 degrees timing more with direct port and one step colder vs stock and single nozzle on 94.

Originally Posted by AfterShok View Post
What was the reason from going one step colder? Are you stock or running some mods? I just bought the stock ones you posted originally
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