Ford Boss 302 2011 Manual page 15

Boss 302 Unique Features
this point, the gauge is taking a stationary reading. Do not move the
vehicle at this time or your calibration will be incorrect and you will need
to re-calibrate. Next, the gauge will light all LEDs on the radial bar graph
and display "GO". Launch your vehicle in a manner using moderate,
steady acceleration with a goal of reaching 15 mph in three to four
seconds (with 3-1/2 seconds as your goal). Accelerate forward, shifting
smoothly if necessary. When finished with the calibration procedure, the
gauge will display "DONE" for three seconds and then return to Real
Time mode. Accelerating too aggressively or too passively in the vehicle
calibration mode will result in an in complete or inaccurate calibration. It
is very important while performing the acceleration part of the vehicle
calibration that the vehicle not bounce up and down or move side to
side. During this calibration process, DO NOT spin the tires, slide the
vehicle sideways, powershift, lug, jerk, bounce or turn the vehicle. Doing
so will cause an incorrect calibration, and you will need to repeat the
calibration process. To check your calibration, change your display to
Real Time Lateral mode (see Real Time mode). When you accelerate and
brake in a straight line you should see very minimal if any lateral G force
displayed. If you do, repeat the calibration process as outlined above. If
problem persists, contact Auto Meter tech support for further assistance.
Roll out: This function only affects the 1/4 mile function. Roll out is the
distance that your vehicle travels before the 1/4 mile timer (ET) starts.
With a roll out of zero, the gauge will give you a slower ET reading than
a drag strip timer, as the gauge will start the timer the instant the car
moves. A zero roll out will be the most accurate indication of how long it
takes your car to cover a standing 1/4 mile. Increasing your roll out
distance will decrease the ET readings that the gauge will display as you
are giving your vehicle a head start up to 18 inches before the timer
starts.
To select roll out:
1. Enter Setup mode, then press A until "UL65" is displayed.
2. Press B to confirm. The number displayed represents roll out distance
in inches, and may be adjusted from 0 to 18.
3. Press A to increase the value shown. Press C to decrease.
4. Press ENTER to confirm your setting when the desired roll out value
is displayed.
Vehicle weight: Accurate weight is necessary for the gauge to make a
valid horsepower calculation. The vehicle weight has been preset to
3830 lb (1737 kg).
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