Escort G-Timer GT1 Owner's Manual
VEHICLE PERFORMANCE COMPUTER
Owner’s Manual
GT1
The manufacturer is not responsible for any accidents,
property damage, or injuries that occur while using
the Performance Computer.
Like your car’s speedometer, this device is no more than
a measuring instrument, a tool that can be used to
measure vehicle performance. Obey all traffic laws on
the street. Drive responsibly, and use common sense.
ROLLOVER WARNING
This device measures G-Forces, but it does not change
the laws of physics. Under certain circumstances,
almost any vehicle can roll over, causing serious injury
or death. Taller vehicles such as SUVs, trucks, and vans
are more likely to roll than conventional cars, so even
more care needs to be taken with those vehicles.
No electronic device can take the place of the driver’s
judgment.
IndexWARNING
One-button Operation 3
Quick Start Guide 4-5
Remote Control Cord 6
Installation 6-7
G-Meter Operation 8-12
How it works 13
Specifications 13
Performing Timed Runs 14-17
Measuring Horsepower 18-19
Using the Setup Mode 20-26
Accessories 27
Troubleshooting 28
Warranty 30
Service 31
One-button operation
TIMED RUN OPERATION
Stop car,
press TIMED RUN button,
then start anytime.
Start Anytime
REVIEW TIMED RESULTS
Press UP or DOWN buttons
to review data from
last timed run.
G-METER OPERATION
Press and release G-METER button
to display G-Forces. Press again to
choose alternate G-Meter displays.
To enter Setup Mode, hold this button
Ready
G-METER CALIBRATION
Install unit on windshield,
park on level ground,
press CALIBRATE button.
32
Quick Start Guide
Please read the entire manual to learn details of the
many capabilities of your new Performance Computer.
This page provides only a basic overview of the installation, features, and capabilities.
Power-on LED
INSTALLATION
1) Plug into lighter socket
Plug the cord into the Performance Computer, and into
your car’s lighter socket. The Performance Computer is
always “On,” there is no on-off switch.
(If your car’s lighter socket is always powered,
unplug the Performance Computer when not in use to
avoid discharging your car’s battery.)
2) Attach to windshield in center of car
Mount the Performance Computer centered between
the driver and passenger with the suction cup mount.
Make sure the unit is mounted squarely in the car. Do
not mount the unit so it is angled toward the driver.
Pivot the unit on the bracket until it is approximately level (it is not necessary to be perfectly level).
3) Park on a level surface, then press
and release the CALIBRATE button
Each time you remount the unit, you must calibrate
the G-Meter. (The calibration is stored in memory even
if the unit is unplugged, so you don’t need to calibrate
again unless you reposition or reinstall the unit.)
TIMED RUN BUTTON
Press and release to start a timed run
Your car must be stopped before you can perform a
timed run (0-to-60, quarter mile, etc.).
1) Press and release the button
2) Wait a few seconds until the display
shows “Run READY, Start anytime”
3) Accelerate whenever you are ready.
During your run, the unit automatically records and
saves complete run data. The yellow LED lights when
the unit is in the timed run mode and also when you
are reviewing timed runs.
Ready
Start Anytime
UP AND DOWN BUTTONS
Press to review timed runs
The most recent run is saved in memory. Press the UP
and DOWN buttons whenever you want to review this
run.
CALIBRATE BUTTON
Press and release to calibrate G-Meter
BRIGHTNESS ADJUSTMENT
Hold the CALIBRATE BUTTON to adjust
the brightness of the display
G-METER BUTTON
Press and release to select different
displays of G-Forces and other data
Except when performing timed runs, the unit is normally in the “G-METER” mode, where it can display
the acceleration, braking, and cornering G-forces of
your car. Press and release to select different G-Meter
displays. A good initial choice is G-Meter Option 1, a
Bar Graph that shows acceleration and braking forces
on the top line, and cornering forces on the bottom line.
SETUP MODE
Hold the G-METER button
to enter Set-Up mode
54
Installation
Mounting Location
Mount the unit on the windshield, centered between
driver and passenger. The unit must be straight across
Do not angle the unit toward the driver!
the car.
Angle adjustment
Pivot the unit on its windshield bracket until it is
approximately level. It is important that the unit stays
in position during use. If the unit pivots too easily,
tighten the large Phillips-head fastener slightly.
Calibration
• G-Meter: Park on a level surface, then press the CALIBRATE button to calibrate the G-Meter function.
• Timed Run: You do not have to press the calibration
button before a timed run. The Performance Computer
automatically performs a separate internal calibration before each timed run.
Remote Control Cord
(OPTIONAL ACCESSORY)
Press and release the button to operate the G-Meter
•
function. Press again to change to different display.
Press and hold the button to start a Timed Run.
•
Unit must be mounted squarely in car
Mount the unit on the windshield, centered between
driver and passenger. The unit must be straight across
Do not angle the unit toward the driver!
the car.
!
YES!
Mount the unit
straight across the car.
!
NO!
Do not angle the unit.
Unit does not have to be exactly level
The unit does not have to be perfectly level side to
side, special circuitry automatically compensates for
mounting angles up to 30 degrees from level.
OK
OK
Tilt does not have to be exactly level.
The front of the unit does not have to be perfectly level,
special circuitry automatically compensates for mounting angles up to 30 degrees from level.
OK
OK
76
G-Meter Operation
The basics of G-Forces
When you’re not performing a Timed Run, the Performance Computer is in the G-Meter Mode, where it can
display the acceleration, braking, and cornering forces
of your car.
These forces are measured in “G’s,” and they are the
best way to measure your car’s performance. You’ve
felt these forces—when a powerful car “pushes you
back in the seat,” when a panic stop presses you forward against the seat belt, and when a sharp corner
presses you against the door panel.
What the G-Meter shows
The G-Meter displays the G-Forces exerted by your car,
in the plane of the road. On a perfectly level surface,
the G-Meter will read zero when your car is not moving, or when it is traveling “steady-state” (not accelerating, braking, or turning).
However, on hills or sloped surfaces, the G-Meter will
show a small G-Force, even when your car is not moving. This shows the force your tires are exerting to keep
your car from sliding down the slope.
TO SELECT G-METER
Press and release the G-METER button
to choose the G-Meter mode.
Press and release the button again to
select different G-Meter display options.
To Calibrate the G-Meter, park on a level
surface, then press and release the
CALIBRATE button.
WARNING!
This device measures G-Forces, but remember, it does
not change the laws of physics. Under certain circumstances, almost any vehicle can roll over, causing serious injury or death. Taller vehicles such as SUVs, trucks,
and vans are more likely to roll than conventional cars,
so even more care needs to be taken with those ve-
No electronic device can take the place of the
hicles.
driver’s judgment.
G-METER OPTION 1: BAR GRAPHS
Press and release the G-METER button as necessary to
select “G-METER OPTION 1.”
This display shows straightforward bar graphs of
G-Forces. The top line shows acceleration and braking
forces; the bottom line shows cornering forces.
The default scale for the Bar Graphs is .80 G full scale.
You can adjust this using the Setup mode.
Typical Cornering G-Forces
Below we list typical maximum cornering forces
for different types of cars. Of course, auto testers
use smooth, level pavement under optimum conditions to achieve these figures.
Standard sedan .70 G to .80 G
Sports sedan .80 G to .90 G
For example, BMW M3, Acura RSX, etc.
High performance .90G to 1.00G
For example, Corvette, Viper, Porsche 911
+.45 G |||||||||||||||||
.00 G
The car is accelerating at .45 G.
- .22 G
.00 G
.00 G
> .72 G
The car is cornering to the right at .72 G.
. . . . .
. . . . . . .
. . . . .
The car is braking at .22 G.
. . . . . . . . . . .
. . . . .
|
|
| > > >
+.45 G |||||||||||||||||
> .72 G
The car is accelerating at .45 G,
and cornering to the right at .72G.
. . . . .
| > > >
. . . . .
. . . . .
|||||||||
. . . . .
.
. . . . .
.
Modified car 1.00 G or more
98
G-METER OPTION 2: PEAK HOLD
Press and release the G-METER button as necessary to
select “G-METER OPTION 2.”
This display shows the peaks in acceleration, braking,
left cornering, and right cornering G-Forces, and
“holds” those numbers on the screen for 4 seconds.
You can adjust the hold time using the Setup mode.
!
| .38
< .00 | .00 > .00
Showing a recent acceleration peak of .38G.
< .00 | .48 > .00
Showing a recent braking peak of .48G.
< .48 | .00 > .00
Showing a recent left cornering peak of .48G.
!
!
| .00
!
!
| .00
!
!
| .00
< .00 | .00 > .83
Showing a recent right cornering peak of .83G.
< .48 | .48 > .83
Showing recent peaks in all four directions.
!
!
| .38
!
G-METER OPTION 3: FORWARD + 0 to 60
Press and release the G-METER button as necessary to
select “G-METER OPTION 3.”
The top line shows acceleration and braking forces,
the same as G-METER Option 1: Bar Graphs.
The second line shows your “Top 10” best 0 to 60mph
times to date. (Of course, you must perform timed runs
before times will appear in this display). The display
continuously scrolls through your best 0 to 60 times.
- .22 G
. . . . . . .
|||||||||
1 5.46 0-60
Showing braking of .22G, and a #1 top
0 to 60 run to date of 5.46 seconds.
+.45 G |||||||||||||||||
. . . . .
2 5.60 0-60
Showing acceleration of .45G, and a second-best
top 0 to 60 run to date of 5.60 seconds.
1110
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