G-Tech Pro Competition, User Manual

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G-TECH / Pro Competition User Guide, Release 3.1
141
Tips for Improving Accuracy
• Make sure that your accelerometers are calibrated
properly. Be sure to read “Accelerometer Tips” on
page 142 when you have a chance. It provides a lot of
useful information on how you can optimize your cali-
bration
• Do your acceleration runs on a very flat / level track.
Even a very gentle slope may cause your readings to be
off.
• Try to avoid taking measurements on windy days. A tail
wind will artificially lower your time and increase your
measured horsepower. A head wind will artificially
increase your time and lower your measured horse-
power.
• Do several runs in both directions to average out the
effects of slope and wind.
• Ensure that the G-tech is not loose in its mounting
bracket and also make sure the mounting bracket is
firmly installed.
• A smooth, strong launch will typically yield the most
repeatable measurements. A jerky or violent launch
might cause the G-tech to trigger before or after you
intend.
• Rollout distance affects results (both E.T. and trap
speed). If you program the G-tech with a large rollout,
your E.T. will be faster and your trap speed will be
higher. Always use the same rollout setting for runs that
you will compare against one another. For more infor-
mation, see “Rollout” in the Glossary (p. 162).
• When doing a braking test, bring the vehicle all the way
to a complete stop
and wait for the E.T. clock to stop
counting . If you begin moving again before the E.T. clock
stops, you may not be able to view braking distance
results.
• When trying to measure horsepower and torque,
please follow the procedure in the manual very closely
(p. 157)