Page 6 - NM Spring_2021

pretty busy building and servicing are flowing into their engines, same equipment for all of them,”
quite a few mags as there is a spark duration is only one of the says Spud Miller of FIE.
growing field of nostalgia racers in ingredients that keeps the fire lit.” Just how does a magneto generate
addition to servicing mags for sprint In 2011, Fuel Injection Enterprises that much current?
cars as well. (FIE) purchased the Super-Mag
Inside the magneto are a series of
“The best battery-powered and Sprintmag product lines from magnets spinning in close proximity
ignition box,” reports Wyman, “only Mallory and continue to build and to a stator winding. As the engine
has 20 degrees crankshaft rotation service not only those but all makes spins them, they create energy,
of spark duration, while a magneto of magnetos. energy which is transformed
(such as the MSD 44 Amp) provides “Because we service all types of though an ignition coil which fires
26-degrees. With the amount of magnetos, we’re able to precisely the spark plugs.
nitromethane that today’s racers test and measure output using the
“One of the beauties of a
magneto is that it generates it’s
own electricity,” says Miller. “It’s
a different level of power and the
faster it spins, the more output it
generates.”

In the case of the MSD magneto,
16 rare earth magnets and special
current-producing windings make
up the basis of the unit. Sealed
ball bearing assemblies support a
hardened steel shaft that spins the
magnets across the windings, which
produces the necessary energy.
Holding the magneto in your hand
and attempting to spin the shaft
will give you a good example of just
how hard these units are to spin

These ignition points
are an example as
to what a points
magneto
would use

When it comes to providing the ultimate in ignition power to spark plugs, it’s hard to
beat the magneto for its simplicity.

6 Nitro Madness Magazine SPRING 2021