Magic Spark Plugs
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They look like they are designed for an exposed spark (not shielded by the side electrode).
There will still only be one spark to follow the shortest path.
Where did you get them and what is the brand and full code?
Ta.
There will still only be one spark to follow the shortest path.
Where did you get them and what is the brand and full code?
Ta.
They are from Brisk - part number DOR14LGS.
Equivalent is the Champion N7Y
Of course I have no expectation of more sparks or anything like that - I understand how spark plugs and ignition systems work.
My hope is, that because the company is a lot smaller, and the production runs are a fraction of the NGKs and Champions of this world that the quality control will be better.
Either the quality and longevity of new plugs is getting worse over recent years, or counterfeiting of the big brands is becoming an issue.
I suspect both to be true.
Anyway, we'll see how they go!!!
Equivalent is the Champion N7Y
Of course I have no expectation of more sparks or anything like that - I understand how spark plugs and ignition systems work.
My hope is, that because the company is a lot smaller, and the production runs are a fraction of the NGKs and Champions of this world that the quality control will be better.
Either the quality and longevity of new plugs is getting worse over recent years, or counterfeiting of the big brands is becoming an issue.
I suspect both to be true.
Anyway, we'll see how they go!!!
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These plugs provide a shrouded area for the spark which makes it less able to light off a mixture, as opposed to an electrode on a standard plug that protrudes well into the combustion chamber. Standard plugs are made the way they are to place the tip of the electrode well into the "mix" area and ensure good ignition/flame propagation. Admittedly, on low compression, stock motors, it probably won't make any difference and the pictured plug WILL last longer. OTOH, Hemi head motors, like the commando, though more efficient than wedge-shaped combustion chambers, are more critical re needing optimum spark to properly light off the mixture.
I'd put those plugs in your "things I shouldn't have paid money for" display!
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These plugs provide a shrouded area for the spark which makes it less able to light off a mixture, as opposed to an electrode on a standard plug that protrudes well into the combustion chamber. Standard plugs are made the way they are to place the tip of the electrode well into the "mix" area and ensure good ignition/flame propagation. Admittedly, on low compression, stock motors, it probably won't make any difference and the pictured plug WILL last longer. OTOH, Hemi head motors, like the commando, though more efficient than wedge-shaped combustion chambers, are more critical re needing optimum spark to properly light off the mixture.
I'd put those plugs in your "things I shouldn't have paid money for" display!
Yes, there is no resister in my plug caps - so I should be good in that respect.
I got some for my Dad's Dommie 650SS too, and that is much harder on plugs, so I will report back!
The tip of the centre electrode on the new plug is around the same height/depth as the tip of the ground electrode on a Champion N7Y when I measure from the seating washer (22mm)
So actually in terms of where in the cylinder the spark is taking place, it is about the same.
Got to try these things... if they don't perform it's easy enough to switch back to Bosch.
I got some for my Dad's Dommie 650SS too, and that is much harder on plugs, so I will report back!
The tip of the centre electrode on the new plug is around the same height/depth as the tip of the ground electrode on a Champion N7Y when I measure from the seating washer (22mm)
So actually in terms of where in the cylinder the spark is taking place, it is about the same.
Got to try these things... if they don't perform it's easy enough to switch back to Bosch.
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Anonymous
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Hi.
I have one of these to test the coil output to the plug (to check the spark can jump the distance of that fancy plug).
May try some myself if your feedback to this thread is positive.
Ta.
I have one of these to test the coil output to the plug (to check the spark can jump the distance of that fancy plug).
May try some myself if your feedback to this thread is positive.
Ta.
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Neat find. These are another endless variation on surface discharge theme. Similar plugs were sold in the 60s-70s by likes of JC Whitney. When I lucked out on snagging a P!! dragster in 1972 to be depressed it would foul regular plugs in a few miles I tried the ThunderFlame plugs and it became one karate kick starter, idled at 600 and never again missed a beat scaring me trying to hook it up till over 65 mph. So yes these plugs should work good in normal tuned Cdo but may work great in one thats over rich &or oil in chamber like nothing wrong for a long time. The large gap takes coil a tad longer to develop the volts to jump so may fiddle slight new timing for a bit better grin from them.
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"The tip of the centre electrode on the new plug is around the same height/depth as the tip of the ground electrode on a Champion N7Y when I measure from the seating washer (22mm)
So actually in terms of where in the cylinder the spark is taking place, it is about the same."
Its the shrouding of the electrode that is the issue. On a standard plug, the electrodes are "out in the middle" of the fuel/air charge. On these type plugs, the electrodes are not and the spark does not light the mixture as well. If you feel the need for a multiple electrode plug, you might look into E3 (brand). Attached is a link to a pic, Note how the multiple electrodes are "up in the air" to facilitate ignition. Several engine builders I used to work with now swear by them though I have personally never used them.
I have no idea if there is a suitable E3 for the Commando.
http://e3sparkplugs.com/media/post/e3_plug2.jpg
So actually in terms of where in the cylinder the spark is taking place, it is about the same."
Its the shrouding of the electrode that is the issue. On a standard plug, the electrodes are "out in the middle" of the fuel/air charge. On these type plugs, the electrodes are not and the spark does not light the mixture as well. If you feel the need for a multiple electrode plug, you might look into E3 (brand). Attached is a link to a pic, Note how the multiple electrodes are "up in the air" to facilitate ignition. Several engine builders I used to work with now swear by them though I have personally never used them.
I have no idea if there is a suitable E3 for the Commando.
http://e3sparkplugs.com/media/post/e3_plug2.jpg
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