C H A P T E R 4
Making a Test Run
DynoWare RT Upgrade for Model 424x Dynamometers Installation Guide
4-12
MAKING A TEST RUN
Dyno runs provide safe, reliable road testing right in the shop. The dyno allows you to
measure, record, and diagnose performance problems quickly. The dyno combined
with the Power Core software produces consistent, easily interpretable power graphs.
Use the following instructions to ensure repeatable and accurate measurements.
1
Verify the vehicle is secured properly.
2
Verify the vehicle is grounded to the dynamometer properly. Refer to “Grounding
the Vehicle” on page 4-9.
CAUTION
Never operate the dyno without first grounding the vehicle to the dyno.
3
Double-click the Power Core program icon to start the software.
4
Click Dyno Control from the Application Launcher.
5
Test the tachometer operation.
5a
Rev the engine. The gauges on the computer screen should be moving. If the
tachometer is moving but not registering the correct RPM values, the
number of degrees of revolution of the crank shaft (the plug fires number) is
incorrect.
5b
Select Run File Information to enter vehicle information.
6
Place the vehicle in a low gear and release the dyno brake using the hand held
pendant.
7
Slowly accelerate the vehicle to 20 m.p.h.
8
Press the red brake button to apply 100% braking and slow down the vehicle.
CAUTION
Using the vehicle’s own brakes to slow or stop the drum at speeds over 30
m.p.h. can severely overheat the brake parts. Dynojet dynamometers with
the air brake or eddy current brake accessory can be used to slow the
vehicle and drum to a full stop at any speed. The vehicle’s brakes should
be used in an emergency stop situation only.
9
Shut the engine off and put the vehicle in gear (manual transmission) or park
(automatic transmission).
10 Set the vehicle’s parking brake and leave the dyno brake on.
11 Select MakeRun Configuration Run Information, and enter the correct value for
the plug firing order.
12 Perform a final inspection.
• Verify the drive tire’s alignment on the dyno drums.
• Make any adjustments to the tie-down straps as needed.
• Perform any other safety checks that you deem appropriate to your particular
situation.
You are now ready to make a high speed run on the dyno. Refer to your Power Core
Help for more detailed instructions.
