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Question:
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Why are Silver spark plugs "the best spark plugs in the world"?
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Answer:
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A spark plug has only one function. Deliver a spark to the combustion chamber
to initiate combustion. A stronger spark means improved combustion. If the
metal used for the center electrode is a poor electrical conductor, such
as platinum or nickel-alloy, some of the energy is lost and the spark is
weaker. A weaker spark could mean lost performance. Silver is by far the
best electrical and thermal conductor of any metal. Using a large silver
diameter center electrode, can mean up to 137%
more spark power and therefore increased engine performance. Nology Silver
spark plugs out-perform all other spark plugs and deliver the most powerful
spark. That's why Nology Silver spark plugs are the best spark plugs in the
world.
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Question:
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Aren't Platinum or Iridium spark plugs the best?
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Answer:
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No. As a matter of fact, Platinum and Iridium are some of the worst metal conductors. The reason
why Platinum and Iridium spark plugs are used is for longevity only. They
can last up to 100,000 miles. If you are looking for longevity, they are for you. If you are looking for performance, choose silver.
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Question:
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Isn't copper a good conductor?
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Answer:
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Yes, but not the best. Silver is the best. Also, the electrodes of spark
plugs with so called "copper electrodes" are not solid copper, they are copper
core. This means, an electrode made out of a poor conducting material, usually
nickel-alloy, with a copper core. This only benefits heat dissipation, not
performance.
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Question:
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Doesn't a silver electrode melt?
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Answer:
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No. Just like conventional spark plugs, Silver spark plugs are available
in different heat ranges. If the correct heatrange is chosen, thermal problems
won't arise.
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Question:
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Why is heatrange so important?
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Answer:
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If a spark plug doesn't have the correct heatrange for the engine, engine
failure can occur. A spark plug that is too cold won't reach optimum operating
temperature and could experience carbon build-up or oil-fouling. A spark
plug that is too hot can overheat and melt the electrode.
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Question:
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Won't a "hotter" spark plug make a hotter spark?
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Answer:
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No. A hotter, or colder spark plug refers only to the ability of the spark
plug to dissipate heat. A colder spark plug dissipates heat faster than a
hotter spark plug.
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Question:
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Do I need to change spark plug heatrange when I use Silver?
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Answer:
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No. Spark plug heatrange stays the same.
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Question:
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I noticed that Nology Silver spark plugs are only available in a few
heatranges?
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Answer:
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Yes, that's correct. Silver is also the best thermal conductor of any metal.
In managing the ever changing combustion chamber temperatures, caused by
different engine and load conditions, silver is unsurpassed. To prevent plug
fouling, optimum operating temperature is reached shortly after start up,
yet under full throttle, when things really start to get hot, heat is dissipated
rapidly. Silver spark plugs provide the widest heatrange latitude and
therefore cover all heatranges with fewer models.
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Question:
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The Nology Silver spark plugs recommended for my engine look like they are
a much hotter heatrange than the spark plugs I normally use?
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Answer:
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Because the thermal conductivity of silver is so much better than that of
any other metal, the physical appearance of Nology Silver spark plugs will
be different.
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Question:
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Isn't a split electrode or a fine wire electrode better?
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Answer:
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It depends on the application. Since the ionization voltage of spark plugs
with split electrodes or fine wire electrodes is lower, they are perfect
for older vehicles with weak ignition systems. But since spark voltage is
lower, they are not desired for performance applications. In addition, electrical
energy travels on the outside of a conductor and not through the middle as
commonly assumed, and since a large diameter center electrode offers a larger
surface area, spark carrying ability is increased when the center electrode
has a large diameter. To put it simply, you can't fit a big spark through
a tiny electrode.
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Question:
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Is there a noticeable improvement if I use Nology Silver, and if yes, why?
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Answer:
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Yes. The combination of using silver and having a large diameter center electrode
increases Nology Silver's spark carrying ability and spark power.
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Question:
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Are there any other reasons why Nology Silver spark plugs are superior?
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Answer:
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Yes. Nology Silver spark plugs are manufactured to highest quality standards
and are made exclusively out of top grade materials. The extra pure aluminum
oxide insulator is of the purest material available. This gives Nology Silver
spark plugs the highest reliability together with very good high voltage
insulation.
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Question:
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How long will Nology Silver spark plugs last?
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Answer:
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The spark plugs will last up to three times as long as conventional
spark plugs. Silver is a precious metal and therefore extremely resistant
to erosion, guaranteeing a virtually unchanged electrode gap for the life
of the spark plug.
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Question:
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What about spark plug gap?
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Answer:
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The spark plug gap is the same as the one recommended by the manufacturer
of the engine in which the spark plugs are to be used.
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Question:
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What's the best way to gap spark plugs?
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Answer:
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To gap spark plugs always use a spark plug gapping tool. Never pry the ground
electrode with a screwdriver or similar object. This could permanently damage
the ceramic insulator and the center electrode, making the spark plug inoperable
and voiding the warranty.
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Question:
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Why do I need resistor plugs?
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Answer:
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You don't always need to use resistor spark plugs. True, some electronic
engine management systems are very sensitive to RFI or EMI and if non-resistor
spark plugs are used the engine doesn't work properly. However, most engines
will not experience any problems with non-resistor spark plugs, especially
if there is some resistance in the spark plug cap or the wires.
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Question:
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So non-resistor spark plugs are better for performance?
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Answer:
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Yes. If you are looking for performance you want to use non-resistor spark
plugs. A resistor is exactly what the word implies. When the spark crosses
the point of resistance some of the spark energy is lost. A resistor is like
an electronic obstacle and could be the cause for a weak spark. Non-resistor
spark plugs deliver a more powerful spark.
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Question:
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Why do car manufacturers recommend resistor spark plugs?
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Answer:
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One reasons is actually emissions. Since the resistor is an obstacle it forces
the spark voltage to be higher, assuring combustion in a lean mixture. Also
resistor plugs are MUCH cheaper to produce. You will never find resistor plugs
in serious race cars, yet these cars use some of the most sophisticated engine
management and data acquisition systems. But these cars have no EMI problems.
Why? The spark happens inside the combustion chamber where he is completely
shielded by the metal cylinder head. No EMI can escape the combustion chamber.
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Question:
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How tight should spark plugs be?
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Answer:
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This is a very important point. Most of the time spark plugs are too tight,
(over torqued). This will result in a deformed spark plug, with the internal
seal damaged. A spark plug damaged this way can lead to premature spark plug
failure and even engine damage. For proper torque values, please check with
the spark plug manufacturer.
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Question:
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I read something about antiseize and silicone grease. What are they for?
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Answer:
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Before installing any spark plug always apply antiseize to threads. This
assures easy removal of the spark plug and prevents corrosion and seizing.
For best high voltage insulation, to prevent arcing-over on the outside of
the aluminum oxide insulator and to repel moisture, always apply a high quality
silicone grease to the inside of the spark plug boot.
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