Please see the new shop site: http://www.motion-dynamics.net
This is a new product that we are going to start
carring, the price will be $145.00.
This will not work with all car/truck
applications please call for your application
See Description Below:
As you know, any change in a vehicle's tire size
or rear axle ratio will cause the
speedometer reading to be inaccurate.
The Electronic Ratio Adapter (ERA) is designed to
correct this problem.
With the ERA, you simply hook up four wires, set
the DIP switches according to
the included calibration table, and you're on
your way.
The ERA has one of the widest pulse ranges on the
market today. It is compatible to most cars and
trucks.
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The automotive industry has a great variety of
part sizes, types, shapes and descriptions, but
regardless of make, model or year, a few things
are standard. One of those
standards has been the number of revolutions a
speedometer cable will make for each mile
traveled. Nowadays, electronic pulses have
replaced the rotating cable, but
the same principle applies. The Pulse Ratio (the
number of pulses per mile traveled) remains the
same, regardless of speed, since the same
distance is traveled and the
same number of pulses have occurred each mile no
matter what the speed was during that mile.
However, this Pulse Ratio can be made to vary
from the true when modifications are made which
change the number of electronic pulses per mile
on a particular vehicle.
This is most commonly caused by changing the tire
size (increasing the outside diameter of the
tires will cause the tire to travel further
before making a complete
revolution), but other modifications could have
the same result. When the Pulse Ratio is thrown
off, the speedometer/odometer will be inaccurate
and corrections must be
made.
This relative difference between true speed and
the speed indicated on the speedometer is called
the Variance Ratio, and it is corrected using the
Abbott Electronic Ratio Adapter.
