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    something wrong

    Yesterday my car reached it's top-speed at 335. But i felt it was jerking. The pressure was oscillating between 0.9 and 1.3 bar. Does someone know what the right max pressure is?

    Re: something wrong

    Quote:
    fredb said:
    Yesterday my car reached it's top-speed at 335. But i felt it was jerking. The pressure was oscillating between 0.9 and 1.3 bar. Does someone know what the right max pressure is?


    It sounds as if your car may have been modified, in which case only the tuner would be able to answer that question.

    Re: something wrong

    Quote:
    fritz said:
    Quote:
    fredb said:
    Yesterday my car reached it's top-speed at 335. But i felt it was jerking. The pressure was oscillating between 0.9 and 1.3 bar. Does someone know what the right max pressure is?


    It sounds as if your car may have been modified, in which case only the tuner would be able to answer that question.



    After posting the above reply I realized that you have a 996 GT2, not a Turbo as I had assumed.

    Was the jerking caused as a result of running into the rev limiter at about 6.750rpm?

    Re: something wrong

    335 was slow?

    Re: something wrong

    it became jerking when it passed 6000 rpm. My car has a stock engine.

    Re: something wrong

    Quote:
    fredb said:
    it became jerking when it passed 6000 rpm. My car has a stock engine.



    It sounds as if your stock engine is homesick and wants to make a trip to the dealer.


    But it still pulled 335 km/h on the speedo!

    Re: something wrong

    Yes, and 325 on the GPS !!!

    Re: something wrong

    Quote:
    fredb said:
    Yes, and 325 on the GPS !!!



    I knew you'd had it modified! Top speed was supposed to be 319 km/h!

    Re: something wrong

    It indeed sounds like you ran into the rev limiter. Shouldn't be your fault if you mis-read it at that speed!

    Re: something wrong

    Quote:
    fritz said:
    Top speed was supposed to be 319 km/h!



    i like to check what is supposed to be ......

    Re: something wrong

    Quote:
    Ferdie said:
    It indeed sounds like you ran into the rev limiter. Shouldn't be your fault if you mis-read it at that speed!



    i think i was in the rev, but before the car was already jerking since 6000 rpm.

    Re: something wrong

    It might probably help if you posted some picturs of your car
    -Joost-

    Re: something wrong

    And some videos .

    Re: something wrong

    Could be fuel mass sensor, unless of course you were hitting the rev limiter. Common problem in 996tt series. Good to change them once every 2 years, tough to see when they start giving wrong numbers and you lose power gradually until they stop working.

    Re: something wrong

    Quote:
    GT said:
    Could be fuel mass sensor, unless of course you were hitting the rev limiter. Common problem in 996tt series. Good to change them once every 2 years, tough to see when they start giving wrong numbers and you lose power gradually until they stop working.



    many thanks for this technical response.

    Re: something wrong

    Wow... :O
    Thanks Fred, C'est une voiture trés belle!
    -Joost-

    Re: something wrong

    and now, could you help me with the picture???

    Re: something wrong

    Ahm... no...:o
    I tried! Believe me, I tried!
    Thanks anyway, your car looks awesome man!
    -Joost-

    Re: something wrong

    I trust you !

    Re: something wrong

    Quote:
    fredb said:
    and now, could you help me with the picture???



    I wonder ............?

    Great. I didn't even know I could do that!

    Man, I need to get a life.

    Re: something wrong

    the answer is that the waste-gates were liking sometimes. The normal boost pressure is 0,8 bar. The engine cuts when it sees 1,3-1,4 bar.

    --
    RS6 600 HP.

     
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