Specifications

Q: What about a multi-spark ignition system?
A: Most people are not aware that there is no multi-spark at higher engine rpm. There just isnt any time for multiple sparks. So what are
multispark ignition systems good for? Maybe its just a sales gimmick! If the first spark is powerful enough to initiate combustion, multiple
sparks are not necessary. By the way, if a multi-spark ignition system generates 6 sparks, which one of the sparks would you want to be the
one to ignite the mixture? # 2 or # 4 or maybe # 1?
Q: Do I have to use non-resistor spark plugs together with HotWires
®
, and what will happen if I use resistor spark plugs?
A: To take full advantage of the performance gain possible when using HotWires
®
, non-resistor spark plugs are best. If for any reason resistor
spark plugs must be used, performance gain is less, because the resistor is impeding the spark, however, performance will still increase.
Q: Why do car manufacturers recommend resistor spark plugs, arent they needed to suppress radio interference
A: There are many reasons for OEMs to use resistor plugs. One reasons is actually emissions. Since the resistor is a 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 systems and data acquisition systems. But
these cars have no EMI problem. Why? Because the resistor in the plug is NOT needed to suppress EMI. The spark happens inside the
combustion chamber and is completely shielded by the metal cylinder head. No EMI can escape the combustion chamber.
Q: Do I have to change ignition timing after installing HotWires
®
?
A: Some engines need less timing advance. Mostly engines with a large cylinder bore diameter, or inefficient combustion chambers. This is the
direct result of much faster and improved combustion.
Q: What about fuel mixture setting?
A: If youre looking for performance, fuel flow can be increased. The HotWires
®
spark is so hot even the added fuel will be ignited, which
increases performance. If youre looking for economy, fuel flow can be decreased. Even this lean fuel/air mixture will be ignited reliably.
Q: Are there situations where I absolutely have to change jetting?
A: Yes. Because a hot spark will burn the fuel/air mixture in the combustion chamber more completely, and since some engines run lean to
begin with, rejetting could be necessary.
Q: How come with other ignition systems I dont have to make so many additional changes to my engine, such as timing and jetting?
A: Because HotWires
®
is the only ignition system that influences the combustion process positively. Other ignition systems that dont require
changes to perimeter settings probably dont do anything more than your stock ignition system.
Q: What about on modern computer controlled engines where timing or fuel flow can not be adjusted?
A: The computer collects all the data and makes the necessary adjustments automatically.
Q: What if I have a hotter chip in my computer with more timing advance?
A: If the timing is too advanced from the stock setting, and the engine is not equipped with a knock sensor, caution should be taken so the
engine does not experience detonation. In some cases timing has to be returned to the stock setting.
Q: Do I need to use spark plugs with a different heatrange when I use HotWires
®
?
A: No. Spark plug heatrange stays the same.
Q Wont a hotter spark plug make a hotter spark?
A: No. A hotter, or colder spark plug refers only to the ability of the spark plug to dissipate heat.
Q: Will HotWires
®
cause interference (EMI) with my radio or engine management system?
A: No. HotWires are manufactured using spiral-core technology, which prevents substantial amounts of EMI. Only low quality aftermarket
stereos, or badly installed stereos (wiring) could be a problem. However, there are thousands upon thousands of satisfied users without an
y
EMI problems what-so-ever.
Q: Why do car manufacturers recommend resistor spark plugs and high-resistence plug wires , arent they needed to suppress
interference (EMI) with my radio or engine management system?
A There are some EMI issues, but only ONE resistor is needed on the secondary side of the ignition system. The resistor could
be in the spark plug, or in the plug wire (not in both). Most US cars use resistor plugs and carbon core wires (resistence is
too high and causes performance loose). European cars NEVER use carbon wires. They use solid or spiral core wires with
resistors in the plug or in the plug wire connectors. HotWires use spiral core technology and sometimes we add resistive
distributor connectors. No resistor plugs are needed.There are many reasons for OEMs to use resistor plugs. 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 systems and data acquisition systems. But these cars have
no EMI problem. Why? Because the resistor in the plug is NOT needed to suppress EMI. The spark happens inside
the combustion chamber where he is completely shielded by the metal cylinder head. No EMI can escape the
combustion chamber and the spiral core wire is taking care of the ringing that may find its way back to the coil etc.
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