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Thread: Audi R8 Nürburgring 24 Racer

  1. #1
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    Audi R8 Nürburgring 24 Racer

    Michael Düchting, Bilstein and Sport Auto have combined to create a race version of a car named after a race car (a bit ironic I think). Using the R8's engine block but decreasing displacement to 4.0 L, the engine produces 530HP @ 7,800 rpm and 353 lb.-ft. @ 7,000 rpm. The car weighs in at 2,755 lbs and is in the SP 7 class, which I think is the second highest class where all the GT3s are in. Last year, only the Viper(s) were in SP 8 if memory serves.

    Pictures below.

    Source: Autoblog, German Car Scene
    Attached Images Attached Images

  2. #2
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    That should SO be all black... Would still hit it.

  3. #3
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    Is the engine, the same (or similar) as the one in the racing Spykers?
    Lack of charisma can be fatal.
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  4. #4
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    Quote Originally Posted by Ferrer View Post
    Is the engine, the same (or similar) as the one in the racing Spykers?
    I have no idea. What is the deal with the one powering the Spykers? I heard it was recently upgraded.

  5. #5
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    Quote Originally Posted by Street_Dreamer View Post
    That should SO be all black... Would still hit it.
    I totally approve.
    Reginald *IB4R* says:
    it was a beautiful 35 seconds.
    David says:
    that's what she said

  6. #6
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    Oh would you look at that. It's still ugly.
    John says:
    so i had to dump acid into the block tank today
    i'm afraid to fap
    cause i got it on my hands

  7. #7
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    Quote Originally Posted by baddabang View Post
    Oh would you look at that. It's still ugly.
    You'd hit it anyway, ugly or not. Just like Johnny's mom.
    Reginald *IB4R* says:
    it was a beautiful 35 seconds.
    David says:
    that's what she said

  8. #8
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    Quote Originally Posted by Kitdy View Post
    Using the R8's engine block but decreasing displacement to 4.0 L, the engine produces 530HP @ 7,800 rpm and 353 lb.-ft. @ 7,000 rpm.
    how does one reduce the engine displacement whilst keeping the same engine block?
    Who killed the Electric Car?
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  9. #9
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    Epic win.

  10. #10
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    Quote Originally Posted by ZeTurbo View Post
    how does one reduce the engine displacement whilst keeping the same engine block?
    Shortening the stroke, probably.
    "I'd hate to die twice. It's so boring" - Richard Feynman, last recorded words.

  11. #11
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    Quote Originally Posted by Kitdy View Post
    I have no idea. What is the deal with the one powering the Spykers? I heard it was recently upgraded.
    I'm not exactly sure about the one in the racing car but it was the same as the street car with some modifications IIRC. The engine in the road car was indeed upgraded. They used a 4.0l block from Audi which was taken out of production. They now use the 4.2l as is used in the RS4. It nearly made the company go bankrupt as they couldnt deliver any vehicles, whilst they redesigned the cars around the new engine.

  12. #12
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    Quote Originally Posted by CdocZ View Post
    Shortening the stroke, probably.
    That's what I figured.

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    Quote Originally Posted by CdocZ View Post
    Shortening the stroke, probably.
    i see.... interesting challenge to an engineer i guess.
    Who killed the Electric Car?
    GO HABS GO!

  14. #14
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    Quote Originally Posted by ZeTurbo View Post
    i see.... interesting challenge to an engineer i guess.
    Not really. Just lengthen the conrod, am I right?

  15. #15
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    A con-rod lengthening would keep the same stroke, but raise place the piston in contact with the top of the cylinder if it was already a tight fit.

    To shorten the stroke a new crank shaft with less throw would be used, and then the block reduced in hight to suit. This can have the beneficial effect of increasing the bore:stroke ratio and, to a small degree, lowering the engine's centre of gravity.
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