G-METER OPTION 2: FRICTION CIRCLE
Press and release the G-METER button as necessary to
select “G-METER OPTION 2.”
The small numbers on this display show the braking
and acceleration force on the top line, and the corner-
ing force on the bottom line.
The large number shows the combined G-Forces, and
the arrow shows the approximate direction of those
forces.
The combined G-Force is not the simple addition of the
two forces; instead it is the “vector sum” of those forces,
as shown in the example below.
When the combined G-Force is under .15G, the arrow
is displayed as an outline pointing straight ahead.
The car is accelerating at .43 G.
The car is braking at .32 G.
The car is cornering to the left at 1.03 G.
The car is accelerating at .45 G,
and cornering to the left at .72G.
The combined G-Force is .85G.
11
10
The car is accelerating at .45 G.
The car is braking at .22 G.
The car is cornering to the left at .43 G.
The car is cornering to the right at .72 G.
The car is accelerating at .45 G,
and cornering to the right at .72G.
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 con-
ditions 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
Modified car 1.00 G or more
!
!
.72G Cornering
.45G Acceleration
.85G Combined
!
