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ADVANTAGES OF THE HUB DYNO OVER ROLLERS
The Dynapack Hub Dyno replaces the drive wheels with two special adapters which fit into the dyno pods giving the nearest thing to an engine dyno whilst still leaving the engine in the car. However because the engine/car is as run on the circuit the results can take into consideration things like air flow round the engine and air intake, and the exhaust exactly as run on the car etc.
The car can't come off the rollers.
Far more accurate and repeatable results.
No wheel slippage giving more accuracy.
Higher tyre pressure gives higher power readings as there is less tyre drag, this variable is eliminated.
Toe in and camber angles give different results because of tyre scrub, this variable is eliminated.
Variable force used to strap down the car gives different results, this variable is eliminated.
The car can be held at any RPM (+ or - 5 RPM) indefinitely independent of throttle position meaning torque readings for fueling and timing can be far more accurately obtained for any throttle positions.
The dyno is virtually silent in use meaning it is far easier to hear the engine “detting”.
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