Interesting spark plug article.
11-08-2006, 09:53 AM
#1
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Interesting spark plug article.
Lots of people here say that NGK plugs are the best.This could be why.I've never tried NGK plugs but the testing in this article seems reasonable.I'm going to give it a try.
http://www.lubedev.com/articles/flameout.htm
http://www.lubedev.com/articles/flameout.htm
11-08-2006, 11:09 AM
#3
2nd Gear Member
Join Date: Nov 2006
Posts: 211
RE: Interesting spark plug article.
It doesnt say NKG plugs are better, it dont even say they have lesser resistance, all it says is that the particular (four) NKG plugs that he tested had lesser resistance.
To understand this, you have to picture two wires with resistor and gap in between
o---[]--[]-------|
o----------------|
There, the o are your source of high voltage, the [] are two resistors, first one is plug wire, second one is the plug, and the | is your gap. The process is like so, coil charges, at a specific BTDC determined by engine computer coil stops charging and magnetic field collapses, this is when spark is looking for shortest distance to breach and release coils energy. If resistance between gap is lesser than anywhere else in the ignition system (coil on), then spark will occur on the spark plug gap.
Resistance is lesser somewhere other than the plug's gap? Well the boy has a faulty ignition system.
He is talking about Kilohm difference, resistance across the gap? Several dozen and even hundreds of megaohm - more than a million times greater. Resistance across the gap is variable, and depends on cc compression and air/fuel mixture. How big is the plug gap? Less than 1/4 inch in most cases, that means he has to have a smaller distance somewhere else in his ignition system, when you got water and snow on faulty parts thats not a problem.
A real mechanic would have checked the plugs for proper gap, all looks well, problem is somewhere else. Such as water and snow on his ignition components, lol. Sure he changed plugs, but whos to say that he did it after wet weather was over.
NKG iridium plugs are only good when you need them, i.e. blown and nitrous apps, or high compression. For 99% of vehicles out there an OEM copper plug will do a better job, because copper is a better conductor and that means less amps are lost. Platinum and iridium plugs are used by OEMs primarily because of their longivity, there is no other reason for using them in your economy kid hauler.
Im familiar with Neons, first ignition upgrade that is talked on neon forums is ditch your factory platinum plugs and get copper.
Mod on my mothers neon is ford EDIS ignition system controlled by Megajolt EDIS controller. www.picasso.org/mjlj Ignition is a weak part of neons.
To understand this, you have to picture two wires with resistor and gap in between
o---[]--[]-------|
o----------------|
There, the o are your source of high voltage, the [] are two resistors, first one is plug wire, second one is the plug, and the | is your gap. The process is like so, coil charges, at a specific BTDC determined by engine computer coil stops charging and magnetic field collapses, this is when spark is looking for shortest distance to breach and release coils energy. If resistance between gap is lesser than anywhere else in the ignition system (coil on), then spark will occur on the spark plug gap.
Resistance is lesser somewhere other than the plug's gap? Well the boy has a faulty ignition system.
He is talking about Kilohm difference, resistance across the gap? Several dozen and even hundreds of megaohm - more than a million times greater. Resistance across the gap is variable, and depends on cc compression and air/fuel mixture. How big is the plug gap? Less than 1/4 inch in most cases, that means he has to have a smaller distance somewhere else in his ignition system, when you got water and snow on faulty parts thats not a problem.
A real mechanic would have checked the plugs for proper gap, all looks well, problem is somewhere else. Such as water and snow on his ignition components, lol. Sure he changed plugs, but whos to say that he did it after wet weather was over.
NKG iridium plugs are only good when you need them, i.e. blown and nitrous apps, or high compression. For 99% of vehicles out there an OEM copper plug will do a better job, because copper is a better conductor and that means less amps are lost. Platinum and iridium plugs are used by OEMs primarily because of their longivity, there is no other reason for using them in your economy kid hauler.
Im familiar with Neons, first ignition upgrade that is talked on neon forums is ditch your factory platinum plugs and get copper.
Mod on my mothers neon is ford EDIS ignition system controlled by Megajolt EDIS controller. www.picasso.org/mjlj Ignition is a weak part of neons.
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