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dyno run?

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by deano1978, Apr 9, 2013.

  1. deano1978
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    deano1978 different gear

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    [Apr 9, 2013]
    Thinking of getting one done on my avant.
    Can someone run through on how it works,like when they start measuring,do they put it through all the gears,or is it just a blast in one gear?

    Do different places measure different like flywheel and actual wheel power?

    Cheers
    #1
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  3. stu_m
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    stu_m Active Member VCDS Map User

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    [Apr 9, 2013]
    you would need the engine out to do power at the fly

    it will be measured at the wheels

    I cant say I have ever seen a car dynoed but when it comes to bikes they do a roll on in 4th and they also go through the gears from 2nd this is to measure the full rev range

    you usual print out is just a roll on though I reckon in a car they would do it in 3rd maybe!

    im sure someone in the know will reply
    #2
  4. Mollygoogle
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    Mollygoogle Member

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    [Apr 9, 2013]
    Done in a single gear. Which gear it is in varies from car to car
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  5. BahnStormer77
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    BahnStormer77 BahnStormer

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    [Apr 9, 2013]
    Measured at the wheels.

    Usually worked up the gears and then measured in 4th.

    They then use the drivetrain resistance to estimate power at the flywheel.
    #4
  6. deano1978
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    deano1978 different gear

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    [Apr 9, 2013]
    Thanks for info ;-)
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