Spark Plug's, Gapping, Question's
All: I've read all of the spark plug information I could find on the site. It sound's like PHILMCNEAL's test found the tripple platinum plugs were the best, but the margin was pretty small.
Then their's the thread that talks about side gapping and it's benfit's. Finally, ZPILOTO posted a link for creating a "pencil torch" plug, using standard copper plug's and decreasing the plug gap by 10/1000. Has anyone tested or compared the side gapping vs. the pencil torch? I have a 87 Civic DX hatchback, which I had been running dual platinum tip plug's in. I had found it idled much smooter with them, compared to the standard plug's. However I have had trouble with the number 2 plug and last night when I pulled it I was amazed the car was running, at all. It had burned the platinum tip down about half way into the spark plug housing. I side gapped some copper plug's, which I already had, but it isn't idling very smoothly, although running it on the highway, it goes up the Canejo Grade about 7mph faster than it did previously. So, any thought's, idea's, suggestion's or etc.? I'm thinking of trying the pencil tip modification, but primarily I just want it to run decent and get the mileage it should be getting. |
This is on my list of serious tests to perform. The only thing we really know that is good is indexing, which has been backed up with dyno testing and la la la.
There's some dyno testing on sidegapping out there on honda-tech but I haven't been able to find the actual pictures. |
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Good news was his lawer got Jiffy Lube to get him a brand new motor and pay to get it installed. |
Oh, jiffy lube, something I think they do that stuff for fun.
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I think you guy's might have feeling's about Jiffy Lube!
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With the pencil torch mod when you drill the hole in the bonding strap it become the weak link I'm planning on keeping an eye on it . I would hate for it to break off in the cylinder.:eek: Overall I like they way these feel and the theory make sense to me. For $1.98 a plug and 30 minutes time I think it a keeper. |
This is a repost of the daily post.
My 97 4x4, 2dr, 350ci, auto, Tahoe would go 90 to full, about 300 to quarter, 70 to E. With the Halos 200 to full, and now I've go 403 miles on the tank and I'm a needle above 1/2! Instead of 460-480, I think I might be able to squeak 600 out of this tank! |
from what I remember reading a while back, side gaped plugs make a more avalible flame, but the spark is cooler from being so close to the insulator, but that the insulator is more avalible to flame from combustion, so it stays cleaner and is less likely to foul, but some engines are designed with traditional spark plugs in mind, so what works on one brand of car, or one modle of engine might not work as well with other brands, I've also been told by people at the auto parts stores not to bother with side gaped plugs on a Honda, that they got negative feed back from people who clamed a loss of proformance, and smooth running.
I'm not sure exactly what a narrow gap does, but was reading that a larger gap is more likely to ignite a leaner mix, of course to wide a gap and the spark has a hard time jumping the gap. |
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I prolly have like ten, I got too angry towards the end to take pictures, :p
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If your going to take picture's, you ought to have at least one with your friendly Jiffy Lube sign in it, I would think.
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*shrug* Topic?
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