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Today's competing brands of
spark plugs may feature differing electrode configurations, use various
sophisticated metals in the electrode surfaces, last longer, or have a
more prestigious brand name... but there is really not much about
the spark itself
that makes the dozens of major brands different from each other
today, or from spark plugs of 50 years ago. And a twelve dollar
plug makes just about the same 50 watt spark as a three dollar plug.
What they all have in common is inefficiency. They just don't
manifest enough ENERGY quickly
enough to initiate a complete explosion of the fuel/air
mixture. Some of the gasoline isn't burned, therefore its
potential energy goes out the exhaust pipe instead of being turned into
torque and horsepower.
100% combustion of the fuel/air mixture probably isn't possible, and
isn't a claim made by the manufacturers of Pulstar Pulse Plugs;
however...
A dramatic improvement IS possible, and
our LINKS page will take you to enough
detailed information to satisfy a rocket scientist... or you can just
place your order, install them, and enjoy the RESULTS!
The little red
convertible in our logo is a 1995 BMW 325i with just over
100,000 miles on it. On April 9, 2008, we strapped it to a
dynamometer, and ran it through a
test cycle called 'E-PEP', a simulation with a mixture of
hard and easy acceleration, freeway and city traffic. The
car was currently equipped with Bosch Super Plus plugs in
excellent condition, and had been delivering quite acceptable
driving performance and showing long term fuel economy on a
routine daily commute of 23.4 MPG in light urban traffic, no
freeway time.
The RESULTS were IMMEDIATE and IMPRESSIVE! As you
can see from the table, horsepower and torque increased enough
to measure, and ENOUGH TO
NOTICE! And FUEL ECONOMY
increased MORE THAN ENOUGH to justify the
cost of Pulstars vs. ordinary plugs:
Pulstar plugs cost
$24.95 each, compared to about $7 for a high quality plug such
as Bosch or NKG. The set of six cost about $108 MORE than
a set of six ordinary plugs. Projecting gasoline prices at
$3.50 a gallon, this 7.9% increase in fuel economy recovers the
extra cost of the plugs in just over 10,000 miles, and during
the minimum projected service life of 50,000 miles, the Pulstars
pay for themselves FOUR TIMES.
The chart at right shows the
routine that a vehicle is put through during a ten minute dynamometer
test under simulated load and traffic conditions. During this
test, the amount of fuel used is measured to .0001 cubic centimeters!
The chart below shows the output
of the BMW engine in torque and horsepower, before and after
installation of the Pulstar plugs.
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