36 G-TECH/Pro SS/RR Fanatic Manual
In a very powerful vehicle, or a traction-limited vehicle, you may also notice dips in acceleration that are not due to shifts.
These dips are due to more power being applied to the wheels that can be handled. The net result is that the wheels spin
and the vehicle does not accelerate much.
The large dip you see at the end of the graph is a hard braking at the end of the run. Notice that at the end of the graph,
Gs can show zero value. This is because vehicle came to a stop. Hence there is no acceleration or deceleration.
7.2.6
Horsepower and Torque graph
One of the most exciting features of the G-TECH is its ability to measure and graph your vehicle’s horsepower and torque
against an RPM range.
The G-TECH’s HP-TQ plot provides you with a graph of horsepower and torque throughout an RMP range in a single gear.
This is the “dyno plot” that everyone is accustomed to seeing.
Note:
In order for you to get consistent HP & TQ graphs, there is a special driving technique. This technique is different
than the driving technique you would use for a quick ¼ mile. Please refer to “HP-TQ Measurement” on page 16 for more
information on optimal technique for performing horsepower runs.
You will see a graph such the one shown in Figure 26. Of course the shape of the curve, as well as the numbers and
ranges, will be different for your vehicle.
Figure 26: HP & TQ graph
You will notice a few things about Figure 26. The horsepower curve is drawn in a
thick line
, the torque curve is drawn
with a thin line. Also the peak horsepower and torque values are marked on the graph.
Use ROLLER to move cursors for HP and TQ. As cursor moves, the RPM, HP and TQ values are updated to reflect the
current cursor position.
