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  1. #26
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    Click here to enlarge Originally Posted by 93siro Click here to enlarge
    Yes like a complex balancer system so it will not shake itself to death. The only 90 degree V6 good in making power was the Buick V6 and that had mostly to do with the rigid block, displacement and of course the aftermaeket support that no Audi V6 will have.
    That Buick V6 is pretty damn famous for good reason. It was incredible and still is in many ways.

    Let's see the reviews and what the aftermarket comes up with before we dismiss it. I personally feel it's a much better design than any BMW I6 on the market.

  2. #27
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    Well my understanding of the twin scroll was that it had 2 paths for exhaust gases to vary the boost at high and low engine speeds.
    A path to keep the turbo spooling quickly at low engine speeds to reduce lag and a path to prevent the turbo spinning too fast at high engine speeds. To prevent the Turbo destroying itself and going out of it's efficiency range. That's the variable geometry part noted at the end of this article.
    With the straight 6 the manifold location doesn't seem to be as much of an issue as the Turbos can be on the same side. A single could easily share the exhaust as they do. Twin scroll basically means better spool up across the rev range.

  3. #28
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    Click here to enlarge Originally Posted by AWSAWS Click here to enlarge
    A path to keep the turbo spooling quickly at low engine speeds to reduce lag and a path to prevent the turbo spinning too fast at high engine speeds. To prevent the Turbo destroying itself and going out of it's efficiency range. That's the variable geometry part noted at the end of this article.
    Not all twin scroll turbos are variable geometry. The adjustable vanes adjust the speed of the exhaust gases.

    Click here to enlarge Originally Posted by AWSAWS Click here to enlarge
    Twin scroll basically means better spool up across the rev range.
    It means greater efficiency and in the case for the N63 vs. S63 you see much more top end from the turbos.

  4. #29
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    That Buick V6 is pretty damn famous for good reason. It was incredible and still is in many ways.

    Let's see the reviews and what the aftermarket comes up with before we dismiss it. I personally feel it's a much better design than any BMW I6 on the market.
    A good friend built this engine:


  5. #30
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    Click here to enlarge Originally Posted by Velocity26 Click here to enlarge
    A good friend built this engine:

    https://www.youtube.com/watch?v=Y7EgcYQVUSk
    I kind of want one of these just for fun and for people who don't know cars to get blown away.

    That's f'ing absurd performance! Any more recent vids btw?

  6. #31
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    Click here to enlarge Originally Posted by Velocity26 Click here to enlarge
    A good friend built this engine:
    I'm quite partial to these as well:


  7. #32
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    The car basically has stock suspension and most of the stock interior, including the dashboard and door panels.

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