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DYNO TUNING SEVICES ·
Dyno Tuning ·
Full Map Tuning- Load Dyno ·
Dictator Fitment ·
Power Runs Enquire now
for Specific Pricing 021 801 1702/ 072 283 8685 Inertia Dyno
LOAD DYNO
About the Load Dyno Why our Dyno Dynamics dyno is better. -------------------------------------------------------------------------------- Why is a loading dyno (Dyno Dynamics) better than an inertia dyno
(dynojet)? - Loading dynos
are better than inertia dynos for a number of
reasons. A) Steady State Tuning - Steady state tuning is
the highlight of the loading dyno. Because the
loading dyno uses an electric brake to keep the
rollers from accelerating it is able to precisely vary how much load is
placed on the cars engine. When the dyno exerts as much load on the engine as the engine is
putting out, the rollers will stop accelerating and hold a constant speed.
Because the engine is not accelerating we call this a steady state. During
this time the dyno is measuring the load between
the brake and the car and outputs a live power number. This is very useful
for tuners because it allows them to make changes to each part of the
ignition/fuel map and monitor the power gains or losses in real time. With an inertia dyno there is no way
to keep the rollers from accelerating and therefore no way to hold a steady
state. The engine simply accelerates through the ignition/fuel maps too
quickly. B) More precise measurement - Because inertia dynos use a heavy mass to simulate the inertia of the car
being tested it is hard to monitor minor changes in power. The large mass of
the rollers results in very minor changes in roller speed that inertia dyno sensors have a hard time picking up. If the sensor
and computer don't see the change in roller speed the the
dyno graph will not show a dip in power. However, a
loading dyno uses rollers with very little mass and
directly measures power rather than calculating it. Quick drops in power will
be picked up by the load sensor and will show on the dyno
graph. This is very useful for finding problems and ensuring that your engine
is running correctly. C) Load can be controlled - With an inertia dyno the load exerted on the engine as it accelerates is
based on the inertia of the dyno rollers. This
inertia is set by the mass of the rollers and is not able to be changed. The
inertia of the dyno rollers directly determines how
fast the cars engine will accelerate through each
gear. Ideally this inertia would be equal to the inertia of the car being
tested but this is rarely the case. The inertia is almost always going to be
higher or lower than the inertia of the car and as a result the engine
accelerates faster or slower than it would on the street. This can have a
bearing on how the engine is tuned and how accurate the dyno
replicates real life conditions. Because a loading dyno
is able to actively alter the load on the rollers it is able to change the
rate of acceleration as the operator pleases. Realistic loads for the
particular vehicle can be used or loads simulating driving up a hill can be
used. This is easily controlled by the dyno
operator. D) Problem Diagnosis - This feature goes back to
the ability to control load and do steady state tuning. A loading dyno is able to simulate road conditions in a safe
environment while allowing the technician to monitor the car and it's engine. An inertia dyno is
unable to accurately simulate all but a few road conditions making it much
more difficult to diagnose problems. |
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