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Thread: Readiness Test. Can it be done on a chassis dyno?

  1. #1
    Senior Member ArKay99's Avatar
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    Default Readiness Test. Can it be done on a chassis dyno?

    I am getting ready to take my car (C5) in for inspection. Because I have been working on it and have disconnected the battery numerous times the readiness tests need to run. I am doing some dyno tuning on Monday and could run it then. I am thinking the TCS will trip because the rear wheels will be spinning while the front wheels will be stationary. Will the test run with TCS turned off? Any ideas?

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    Joe (Moderator) joecar's Avatar
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    Can you do a typcial drive cycle on the dyno in a timely fashion...?

    Cold Start, coolant temperature less than 50°C (122°F).
    Idle 2.5 minutes in Drive (Auto) Neutral (Man), A/C and rear defogger ON.
    A/C off, accelerate to 90 km/h (55 mph), 1/2 throttle.
    3 minutes of Steady State - Cruise at 90 km/h (55 mph).
    Clutch engaged (Man), no braking, decelerate to 32 km/h (20 mph).
    Accelerate to 90-97 km/h (55-60 mph), 3/4 throttle.
    5 minutes of Steady State Cruise at 90-97 km/h (55-60 mph).
    Decelerate, no braking.

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    Senior Member ArKay99's Avatar
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    Quote Originally Posted by joecar
    Can you do a typcial drive cycle on the dyno in a timely fashion...?
    Yes, the only issue may be coolant less than 122 degrees F. I can run the car according to the test requirements. I was curious about TCS tripping if left on, or if the test can run with TCS turned off.

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    Joe (Moderator) joecar's Avatar
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    The instructions don't say turn Traction Control System on, or to not turn it off, so it must be okay.

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    Joe (Moderator) joecar's Avatar
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    It may be easier to just do several drive cycles on the street from a cold start.

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    Senior Member ArKay99's Avatar
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    Quote Originally Posted by joecar
    It may be easier to just do several drive cycles on the street from a cold start.
    Yeah. Here in NJ it's so crowded I had to go out 4 times just to get to 55 for 2 mins, then back to 20mph and back to 55. BTW, try doing 20 to 55mph with 75% throttle with 4:10's and 460rwhp. It's hard, at least for me.

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