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The Hunt Story:
World war two
had reached America, and a young air plane mechanic named
Joe Hunt was learning just what it took to keep fighting
machines in the air when the going got rough. One of the
features that often saved the day for both man and machine
was an ignition system that put out its hottest spark at
maximum engine speed, and also had a minimum of parts to
get shot off. This wonder-sparker was called a magneto.
Completely self-contained, the magneto made its own electricity
and carried its own internal coil, Bolt it on, hook up the
plug wires and go flying.
Joe Hunt soon
figured out how to adapt magnetos to race cars and starting
with Johnny Parsons Sr's Indy 500 win in 1950, Joe's magnetos
became standard circle track equipment. All this might sound
like so much ancient history, if it weren't for the fact
that nothing has quite replaced the magneto in all the years
since! Sure, stores are now full of battery powered electronic
ignition systems that can put out a lot of volts,and modern
forms of racing require computerized spark management, but
the simple elegance and dependability of a magneto has never
been challenged.
USAC Vice President
Tommy Hunt, son of Joe, thinks he knows why: It's the old
bullets-through-the-propeller thing -- magnetos keep bringing
the patrols safely home. Many a racer has used a high tech
battery ignition system, reports Tommy, until silicon gremlins
started playing keep-away with the electrons, and the racer
then reached into the back of his bag of tricks for a trusty
old magneto -- problem solved.
Is Tommy just
bragging to honor the memory of his father? Maybe -- maybe
not. Perhaps we should ask some W.W.II fighter pilots. The
fact remains that magnetos still require no battery or generator,
still make sparks that get hotter as the engine turns faster
and still keep winning races.
So, just what
is it that makes a magneto work? How can it make sparks
without any electric power applied to it? Well, imagine
you hold a generator or alternator in one hand and a distributor
from a conventional ignition system in the other. Now slam
the two together with metal-molding force. What you wind
up with is a distributor with generator-guts wrapped around
its shaft. That's a magneto.
Next, peel a
conventional coil like a banana and stuff the innards under
the cap of a magneto. You now have a traditional, self-contained,
moderately bullet resistant magneto ignition unit just add
plug wires. A less traditional variation is gaining popularity:
a magneto with an external coil. While this makes one more
part for the bad guys to shoot at, the external coil also
allows for a more powerful spark.
This brings us
to Joe Hunt Magnetos' hottest product, the H-3 magneto system.
Consider first that their basic automotive magneto with
internal coil is rated at 1,7 amperes -- plenty for countless
race wins over the last fifty years. By taking the coil
out of the magneto housing, Joe Hunt Magnetos can now offer
power ratings of 2,3 amps with conventional permanent magnets
and 4 amps with the top-of-the-circle-track-line H-3 which
uses rare-earth magnets. There's even a 6 amp unit for drag
racing; don't try it in longer races -- it would overheat.
Think of the 4 amp H-3 magneto as just the right amount
of overkill. The unit comes with the best ten millimeter
spark plug wires available -- nothing less would contain
the voltage.
A look around
the still-thriving shop that was founded by Joe Hunt fifty
years ago shows magnetos for all common V-8 engines. As
a practical matter, keeping cost down and servicing simple,
all applications use the same housing and working parts.
The difference is in the base and shaft, which can even
be changed if you trade your engine for a different brand
and want to keep your magneto. A separate high powered magneto
is available for four-cylinder engines such as in Midgets.
At the present stage of magneto evolution, this is perhaps
the most clever: It rates at 3 amps using rare-earth magnets,
yet features an internal coil for ease of mounting and minimal
weight.
Admittedly, a
magneto is not cheap. But as with most things, you get what
you pay for, and in the case of a Joe Hunt magneto, you
get the personal attention of manager Roger Gleeson and
chief technician Steve Friederich. That's right -- Joe Hunt
magnetos are sold and serviced exclusively by Joe Hunt Magnetos.
This allows for truly personalized service, such as when
an offset magneto-base is needed to clear a supercharger.
Steve with over 20 years experience with the company, is
even willing to fabricate a base for a unique application,
if you think you have an engine he doesn't already have
a pattern for. A Buick Straight Eight? No problem, says
Steve. Try that at your neighborhood World War Two aviation
surplus yard!
In 1960 Joe Hunt
did not stop with automotive applications, he turned his
genius to motorcycles. Joe adapted the "Fairbanks Morris
Magneto" for use in Harley Davidson motorcycles, this
proved to be a very exciting and popular ignition system
for the Motorcycle world. Not to be overlooked, magnetos
for the British bikes followed in 1962. |