Dynojet 198: Kart and ATV Dynamometers - Manual (Page 6)

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Your Dyno Room
This section is not meant to imply that a dyno room is
essential to repeatable results on a Dynojet
dynamometer, though 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 can help to ensure
repeatable accurate runs. A good dyno room
should:
• Minimize noise.
• Provide a controlled environment for testing.
• Provide a view window for customers.
• Be designed with safety in mind.
Intake Fan
After building your dyno room, you will need to
supply a cooling fan. The cooling fan serves two
functions. First it must supply air to cool the
bike’s engine. Second it must supply fresh
oxygen for you and your vehicle to breathe.
Many people have the misconception that you
cannot tune without a large fan that simulates
exact road conditions. A good cooling fan is the
only requirement for consistent fault diagnostics
and tuning.
Exhaust Extraction
An exhaust fan is needed to remove exhaust
gases, especially Carbon Monoxide, in the dyno
room. Carbon Monoxide causes two problems. It
is extremely harmful to people if not removed
from the room and affects engine power when
mixed with fresh air.