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Thread: put the car on the dyno

  1. #1
    Skyline Enthusiast Registered User rossmcleod's Avatar
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    put the car on the dyno

    had the car on the dyno the day at hypertech had a problem with the boost we couldnt get it too 1.5 bar of boost:uhoh:

    what do you think






  2. #2
    Skyline Owners Club Registered User Mad Dog's Avatar
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    nice

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    Club Treasurer
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    Nice result Ross
    R34GTT RB30 with a T04Z - enough bhp / enough lbs @ 1.3 bar TOTB TOTB Anglesey Llandow SPA Snetterton
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  4. #4
    01241 879999 Registered User Checkpoint's Avatar
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    Something is up, looks like massive wheelspin after 5500rpm, it's not a missfire as the afr's are perfect.
    Also you'll probably have to add 10% duty to the avcr to get the same boost on the dyno as you do on the road as the dyno won't be replicating the same load conditions.

    We mapped your car to about 1.65 bar on the road and backed it off to 1.55 bar as your engine is stock and you drive flat out everywhere
    9.2 @ 165mph on low boost
    13.6 @ 103mph in a 2.5 ton 4x4
    It was me!

  5. #5
    Skyline Enthusiast Registered User rossmcleod's Avatar
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    will give hyper tec a call on monday see what he says

  6. #6
    Skyline Enthusiast Registered User rossmcleod's Avatar
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    any more info please lol

  7. #7
    01241 879999 Registered User Checkpoint's Avatar
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    I asked Dyno Dynamics to find out what was up as is would seem some of the UK Dyno Dynamics operators don't fully understand how a dyno works or what a power curve should look like

    "We have had a look at your graphs and do not believe it is wheelspin but rather the boost coming on hard n the R33 and the dyno then overshooting to compensate for the sudden increase and then the wiggles later in the power curve are the dyno still stabilising. We had to build some smoothing effect into the software but turbo boost developments have meant that we need to make some adjustments to cater for these developments. We are doing a software upgrade so that the operator can chose a mode for normal cars and then one for cars that have significant boost capabilities. "

    Alan H Evans
    Managing Director
    Dyno Dynamics (Aust) Pty Ltd
    Phone: 61 3 9735 8900 (Office)
    61 413 432 101 (Mobile)
    email:Alane@dyno.com.au


    LOL.... Ross, maybe "you know who" haven't built any cars with "significant boost capabilities" yet
    9.2 @ 165mph on low boost
    13.6 @ 103mph in a 2.5 ton 4x4
    It was me!

  8. #8
    Skyline Enthusiast Registered User siquo2000's Avatar
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    I'd like to make an official complaint..

    I just cracked my neck going from one graph to the other

  9. #9
    Skyline Enthusiast Registered User rossmcleod's Avatar
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    going to be getting another graph the morro so hope its better for then

  10. #10
    M's Factory Area Rep sarky's Avatar
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    Quote Originally Posted by siquo2000 View Post
    I'd like to make an official complaint..

    I just cracked my neck going from one graph to the other


    ross : keep up the good work.
    13.2 @ 104 2003 Santa Pod

    Some people are like a Slinky.....not really good for anything, but you still can't help but smile when you see one tumble down the stairs.

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