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reducing spark plug gap...Hmmm...

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Old May 17, 2010 | 02:00 PM
  #11  
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Grendel4
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Originally Posted by man4mopar
The higher the psi the greater the resistance between spark plug gap. I can see needing a narrower gap or higher voltage ignition with a hotter build in theory and some cases real world application.
The whole turbos/superchargers blowing the electic arc out is well a bunch of BS. They do however raise compression psi over same build natural aspirated which does raise resistance between the gap which is the real science.
Don't mean to be rude, but it's called "Spark Blowout" and is commonly understood in supercharger and turbo-supercharger applications.

At least among those of us who like to keep our engines in one piece.
 
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Old May 17, 2010 | 06:08 PM
  #12  
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Originally Posted by jaxdwg
Bingo; There is no wind in the cylinder when the piston is where the plug fires, it is just around 38* btdc up at speed and the increased pressure is what causes the increased resistence to firing the plug. I believe the entire problem would be solved with stock plugs installed. I could be wrong, of course, but I've been doing engines for 45+ years and the old plug testers checked the firing ability of a plug with increased psi when looking into the sight gauge, remember them???
I don't think I even know what it is. I am assuming it was a electrical scope of sorts?
 
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Old May 17, 2010 | 06:11 PM
  #13  
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Originally Posted by Grendel4
Don't mean to be rude, but it's called "Spark Blowout" and is commonly understood in supercharger and turbo-supercharger applications.

At least among those of us who like to keep our engines in one piece.
I don't mean to be rude either. But you shouldn't trust what your friends are telling you they may have you looking for blinker fluid soon after.
 
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Old May 18, 2010 | 02:25 PM
  #14  
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Originally Posted by man4mopar
I don't mean to be rude either. But you shouldn't trust what your friends are telling you they may have you looking for blinker fluid soon after.
Well, I guess we'll just have to agree to disagree.

BTW, most of my friends are Chevy guys. I wouldn't ask them about anything more complicated than a stone axe. Which is about as technologically advanced as the average Chevy.

If you ever get into supercharging, you'll find out about Plug Blowout.

One way or the other.

Out.
 
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Old May 18, 2010 | 05:23 PM
  #15  
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Originally Posted by Grendel4
Well, I guess we'll just have to agree to disagree.

BTW, most of my friends are Chevy guys. I wouldn't ask them about anything more complicated than a stone axe. Which is about as technologically advanced as the average Chevy.

If you ever get into supercharging, you'll find out about Plug Blowout.

One way or the other.

Out.
Have a good one Grendel and enjoy the ride!!
 
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