27
26
pensions can change this setting for more accurate cor-
nering G-Force measurements.
For cars with very soft suspension, change to 6.0.
For cars with soft suspension, change to 4.5.
Default is 3.0
For cars with very stiff suspension, change to 2.5
For race cars, change to 1.5
4
CLEAR SAVED RUNS
Most users won’t need to use this command.
The Performance Computer’s internal memory saves
full details on the 10 most recent timed runs. The de-
tails on these runs are always viewable by pressing
the UP and DOWN buttons (and can also be downloaded
to your PC or Palm with the optional software and
cable). As you make additional runs, the oldest run is
always automatically deleted from memory (to make
room for the new run). However, if for some reason
you want to erase the ten runs stored in memory, this
menu item lets you do that.
5
CLEAR BEST RUNS
Most users won’t need to use this command.
The Performance Computer remembers the “Top 10” 0
to 60 and 1/4 Mile times from all the runs you have
ever timed. (This memory is separate from the 10-run
memory that keeps full details on your ten most re-
cent runs. ) The “Top 10” memory only saves the ac-
tual 0 to 60 times, and 1/4 mile times and speeds.
This menu item lets you erase those figures.
6,7 HP MIN SPEED AND HP MAX SPEED
These two Setup items let you choose what range of
speed should be used to calculate your car’s horsepower.
The default settings are 30mph for the HP minimum
speed, and 60 mph for the HP maximum speed.
8
HP DRIVETRAIN LOSS
This is a correction factor you can set to adjust horse-
power calculations for drivetrain losses. Default is .15
(15% drivetrain loss). See the “Measuring Horsepower”
section for more details.
9
HP ROLLING RESISTANCE
This is a correction factor you can set to adjust horse-
power calculations for rolling resistance. See the “Mea-
suring Horsepower” section for more details.
10 HP AERODYNAMIC CDA
This is a correction factor you can set to adjust horse-
power calculations for the aerodynamic drag of your
car. See the “Measuring Horsepower” section for more
details.
11 METER MAXIMUM
Most users won’t need to adjust this setting.
This sets full scale for the Bar Graphs used in the
G-Meter displays. The default is .80G.
Race cars and very high-performance street cars can
corner at 1.00G or more, so drivers of those cars may
want to adjust the meter maximum.
DETAILS ON SETUP MODE ITEMS
To enter the Setup Mode, hold the G-METER button.
Then follow the on-screen instructions, which are:
•
To go to the next item, press the START button.
•
To change the setting of an item, press the
UP or DOWN button.
•
To exit the Setup Mode, press the G-METER button.
1
CAR WEIGHT
You must enter your car’s weight for accurate horse-
power calculations. Default is 2000 pounds.
2
PITCH CHARACTERISTICS OF CAR
Most users won’t need to adjust this setting.
This describes the specific way your car tilts back dur-
ing acceleration. Default is 2.0 degrees per G. Cars
with very stiff or very soft suspensions may need to
change this setting for more accurate timed runs.
For cars with very soft suspension, change to 2.5
For cars with very stiff suspension, change to 1.5
For very stiffly-sprung race cars, change to 1.0
(Settings we used: Porsche Turbo Cup race car: 1.3,
Z06 Corvette: 1.5, Audi S4: 2.0, and Volvo sedan: 2.5)
3
ROLL CHARACTERISTICS OF CAR
Most users won’t need to adjust this setting.
This describes the specific way your car leans during
cornering. Default is 3.0 degrees per G, typical for most
performance cars. Cars with very stiff or very soft sus-
12 PEAK HOLD
Most users won’t need to adjust this setting.
This sets the time that peak values are held on the
“Peak Hold” G-Meter display. Default is 4 Seconds.
13 SOUND
Most users won’t need to adjust this setting.
This turns the beep tones on and off. Default is On.
14 SHOW RUN DATA
Most users won’t need to adjust this setting.
This lets you choose what information to display after
a timed run. The default is to display All Run informa-
tion. You can also choose to display only some of the
run data, as shown below.
Choose “1/4 mile” data to show only:
1/4 mile time and trap speed
1000 foot time
1/8 mile (660 foot) time and trap speed
330 foot time
60 foot time
Choose “Speeds” data to show only:
Maximum speed
Peak and average horsepower
Time-to-speed data
(0 to 10, 0 to 20, 0 to 30, etc.)
