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Old 08-30-2012, 10:02 AM   #71
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I would concur going no smaller than .033 or so on the gap. When I had my SVO the factory plug gap was .032, and it still used a conventional distributor ignition system. Coil on plug will give you a hotter spark to each cylinder, so you're probably leaving some performance on the table going with a smaller gap than that. Only if you have a tune that turns up the boost and are experiencing misfiring would I go with a smaller gaps.
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Old 08-30-2012, 10:42 AM   #72
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I would concur going no smaller than .033 or so on the gap. When I had my SVO the factory plug gap was .032, and it still used a conventional distributor ignition system. Coil on plug will give you a hotter spark to each cylinder, so you're probably leaving some performance on the table going with a smaller gap than that. Only if you have a tune that turns up the boost and are experiencing misfiring would I go with a smaller gaps.

Yeah, he told me to go .032 at the very least because I am running a tune that increases the boost a little, but .034 should have no problems.
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Old 08-30-2012, 11:51 AM   #73
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I just got off the phone with NGK tech support. They told me that the Ford OE plugs in our trucks were made by them and are there Iridium OE line. However they are not the IX line that also has an iridium electrode. I told him my modifications(aftermarket tune of 60+ more hp) and he said he would recommend going one plug cooler which is a part number of a LTR7IX-11 or under the store numbers of 6510 in their Iridium IX line. He told me the least he would recommend going with the gap was .034 to.032 at the least. I hope this info helps others.
Good info, thanks! I'm now thinking about changing my plugs at the next oil change (10k miles) as well. I have a very slight intermittent ( think 55 mph shudder but not that bad) condition were it feels as if every now and then one or two cylinders is over/under acheiving. The roads are bad around here so sometimes it feels like the road other times more of a miss. I don't want to go to the dealer (doesn't sound like they know what the hell is going on either) to have them look at it. Looking forward on hearing some feedback on the new plugs.
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Old 08-30-2012, 06:32 PM   #74
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where do you find SHELL gas with no ethanol in it????? i'm on the GA, AL border, and we had one gas station just stop selling it cause it was costing him to much. i know in SC the charge like $.40 more a gallon for Ethanol free gas. here they don't its normal price but i have not seen a shell with ethanol free gas, i wish i did cause that's all i like to run in my truck.
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Old 08-30-2012, 09:09 PM   #75
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where do you find SHELL gas with no ethanol in it????? i'm on the GA, AL border, and we had one gas station just stop selling it cause it was costing him to much. i know in SC the charge like $.40 more a gallon for Ethanol free gas. here they don't its normal price but i have not seen a shell with ethanol free gas, i wish i did cause that's all i like to run in my truck.
We've got lots in Canada! Don't be shy! It's not snowing......yet.
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Old 08-30-2012, 09:20 PM   #76
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We've got lots in Canada! Don't be shy! It's not snowing......yet.
It doesn't even rain anymore let alone snow!
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Old 08-30-2012, 10:52 PM   #77
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It doesn't even rain anymore let alone snow!
Dude, no joke! The corn around here is all junk.
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Old 08-31-2012, 07:02 AM   #78
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Dude, no joke! The corn around here is all junk.
Ya, even some of the trees are droopy :-(
Might get rain today :-)
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Old 08-31-2012, 09:51 AM   #79
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Ya, even some of the trees are droopy :-(
Might get rain today :-)
You can thank US for that...
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Old 08-31-2012, 12:37 PM   #80
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You can thank US for that...
Are all things well down in Louisiana Mike? Y'all were getting pounded pretty hard.
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