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2010 2011 BMW 5 Series Forum F10 Best Coils and Spark Plugs for N63tu |
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02-09-2020, 04:20 PM | #1 |
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Best Coils and Spark Plugs for N63tu
I'm going to be running a bootmod3 tune on my car. I know that gets about a 100 hp increase and I was wondering what's the best performance coils and spark plugs for that.
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02-10-2020, 09:25 AM | #4 |
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I've heard good things about the Delphi coils as well. That's what I'm planning on using once my coils go bad. Bootmod3's page suggest 97506 gapped to 0.022-0.023 if you're under 30psi, and 0.018 if you're over 30.
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02-10-2020, 11:29 AM | #5 |
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02-10-2020, 03:46 PM | #7 |
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And speaking from exp trying .018 through .031 with modified and stock ignition as long you stop misfires their is no benefit going to small and unless you are pushing enough amperage to sustain a longer spark their is no benefit going bigger. People think bigger gap equals better burn but they dont realize their is a inverse relationship with duration because you need more voltage to jump a bigger gap so that means you use up your coils charge faster. So basically my whole point use .020 or if you want to see for yourself search precision raceworks coil testing and you can see full explanation on our ignition system and where it lacks etc. Only time I could see need for smaller than .020 is heavy e85 blend or very high psi cause you dont want blowout causing misfire.
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