Dynojet 200: Installation Guide - Manual (Page 10)

Motorcycle Dynamometer Installation Guide
C H A P T E R 1
Introduction
1-2
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INTRODUCTION
Thank you for purchasing the Dynojet Motorcycle Dynamometer. Before installing
your dynamometer (dyno), please take a moment to review the items you will need to
provide for your dyno.
Y OUR D YNO R OOM
This section is not meant to imply that a dyno room is essential to repeatable results
on a Dynojet dynamometer. However, a dyno room with an engine cooling intake fan,
exhaust extraction, and noise reduction capabilities can add a new dimension to your
shop.
A proper dyno room design will help to ensure repeatable, accurate runs. A good
dyno room should do the following:
• minimize noise
• provide a controlled environment for testing
• provide a view window for customers
• be designed with safety in mind
Cooling Fan—After building your dyno room, you will need to supply a cooling fan.
The cooling fan supplies air to cool the bike’s engine while supplying fresh oxygen for
you and your bike to breathe. It is a common misconception that you cannot tune a
bike without a large fan simulating exact road conditions; however, a good cooling
fan is the only requirement for consistent diagnostics and tuning.
Exhaust Extraction—An exhaust fan is needed to remove exhaust gasses, especially
carbon monoxide, from the dyno room. Carbon monoxide is extremely harmful to
people if not removed from the room and will affect engine power when mixed with
fresh air.
Equalizer Box—If the air coming into the dyno room is greater than the air leaving
the dyno room, the room will become pressurized. A pressurized dyno room will
make measured power misleading. To compensate, you need an equalizer box. The
equalizer box is a baffled (to reduce noise) vent to the outside of your dyno room.
The size of the equalizer box is dependent on the size of your dyno room and the size
of your fans.