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  1. #1
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    New Alpina B3 - N55 with twin turbos

    Top Gear recently posted an article reviewing the new F30 chassis Alpina B3. Like everything Alpina , it's still a beautiful car with some quality performance backing it up. TWO very interesting things I'd like to highlight....

    1. They're Still Using the N54
    2. The Top Gear article mentions an Alpina fuel pump..... Click here to enlarge



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  2. #2
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    Well this is actually great news. Kind of.
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    I don't want to sound like an N54 fanbois but IMHO the N54 is still the best engine in BMW's stable(well, the S63 is DAMN good.) I know a lot of people scoff in disdain when people make mention of the N54 and 2JZ in the same sentence... but those same people are also having to sink $Ks into built engines and still not hitting the N54's current WHP record.
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    N55 with twin turbos, check out the oil cap location.

    Click here to enlarge
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    Click here to enlarge Originally Posted by TCW Click here to enlarge
    N55 with twin turbos, check out the oil cap location.

    http://i.imgur.com/PZtMWSx.jpg
    oh snap, you're right. The article went on to discuss how alpina bought the rights to mfg the n54. Weird that they got their facts so skewed.

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    So we could theoretically take the Alpina parts and bolt them onto the n55?

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    http://www.topgear.com/uk/car-news/a...ive-2013-08-01

    I believe this is the article your referring to?

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    Was rumours new M4 / M2 would use the N54 also

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    With some more research other articles are stating that it is "a high-performance high-pressure fuel pump." A part number would be nice.

  10. #10
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    Click here to enlarge Originally Posted by bryce Click here to enlarge
    oh snap, you're right. The article went on to discuss how alpina bought the rights to mfg the n54. Weird that they got their facts so skewed.
    Wrong

    Straight off the Alpina website:
    The new BMW ALPINA B3 Bi-Turbo combines these characteristics like no other automobile before it. The straight-six 3.0 litre engine equipped with two turbochargers delivers 410hp and a maximum torque of 600Nm.
    Here's from the AutoCar article TCW sourced the photo:
    Key details? It has a twin-turbo straight-six engine (hence the Biturbo badge on the rear), which is interesting – honestly – because BMW moved to a twin-scroll single turbo on its 3.0 straight-six petrol engine a couple of years ago.
    Alpina’s engineers prefer the way two smaller turbos spool, compared with one larger one. So they fit two. Two turbos are more expensive than one, but that’s okay.
    Straight out of the Top Gear Article
    It says Bi-Turbo, when the BMW 3-Series only has single turbo petrol engines these days.
    Good spot. And totally bang on. The Alpina B3 does indeed sport a twin-turbo engine - the older 3.0-litre straight six that used to underpin the 335i until BMW decided it could do the job with a single turbo (which they call, somewhat mischievously, the Twinpower turbo). The trouble is BMW no longer makes that engine, so Alpina has got hold of the tooling for it and is now making it themselves. In tuning circles, this is called going the extra mile.


    Sounds a lot like the N54 Click here to enlarge
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    It is very interesting that they went to the extra work and expense instead of just tuning the N55 - sounds like they must think the N55 can't reliably make the same power or something as it is an expensive proposition to go the way they did without a really compelling reason!
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    If it is the n54, then they probably are buying time to tune the n55 or think the n54 is like the 4g63.
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    Click here to enlarge Originally Posted by CaliforniaBred Click here to enlarge
    With some more research other articles are stating that it is "a high-performance high-pressure fuel pump." A part number would be nice.
    Alpina never sells any of their components separately. Only Alpina owners can get them
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    Click here to enlarge Originally Posted by benzy89 Click here to enlarge

    Wrong

    Straight off the Alpina website:


    Here's from the AutoCar article TCW sourced the photo:


    Straight out of the Top Gear Article


    Sounds a lot like the N54 Click here to enlarge[/FONT]

    benzy, take a look at the pic that was posted. It's clearly an n55. Look at where the oil fill is, plus the engine cover itself. C'mon man. You're smarter than this

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    Click here to enlarge Originally Posted by klipseracer Click here to enlarge
    If it is the n54, then they probably are buying time to tune the n55 or think the n54 is like the 4g63.

    Its an n55 with twin, n54 turbo's. the article is wrong.

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    Click here to enlarge Originally Posted by Roadkillrob Click here to enlarge
    It is very interesting that they went to the extra work and expense instead of just tuning the N55 - sounds like they must think the N55 can't reliably make the same power or something as it is an expensive proposition to go the way they did without a really compelling reason!
    See my posts above. It's an n55. Scott26 made reference to this type of engine/turbo configuration last year or the year before. I'll dig up the posts.

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    Top gear is usually more accurate than this article. Oh well. Maybe alpina figured out a way to mount n54 twins to the n55. It's gotta be a lot more complicated than simply bolt up, however, because of the n55 boost control method, the lack of external bypass valves, the missing throttle blade, etc

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    1 out of 1 members liked this post. Reputation: Yes | No
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    Looks indeed like the N55...those bhp numbers aren't anything crazy though...they could have achieved that or close to it with the stock n55 setup
    Last edited by nitehawk; 08-03-2013 at 02:41 PM.
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    Click here to enlarge Originally Posted by bryce Click here to enlarge
    Top gear is usually more accurate than this article. Oh well. Maybe alpina figured out a way to mount n54 twins to the n55. It's gotta be a lot more complicated than simply bolt up, however, because of the n55 boost control method, the lack of external bypass valves, the missing throttle blade, etc
    One thing though: Alpina B3 VTTS3
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  21. #21
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    Click here to enlarge Originally Posted by bryce Click here to enlarge
    benzy, take a look at the pic that was posted. It's clearly an n55. Look at where the oil fill is, plus the engine cover itself. C'mon man. You're smarter than this
    I agree that appearance wise, it's much more N55 than N54. But that pictures also back from March (when nothing was confirmed) and they've acknowledged in every press release that they're still using the original 335, twin-turbo motor (the N54).

    IF by some freak chance they've figured out how successfully tune & modify an N55 to support N54 TTs, that's awesome but I really don't think they went that far.
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  22. #22
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    Does the engine have variable valve lift? If so, it's N55, if not, it's N54.

    An N55 with twin turbos is still an N55.
    Eppur si muove.

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    Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
    Does the engine have variable valve lift? If so, it's N55, if not, it's N54.

    An N55 with twin turbos is still an N55.
    I was completely wrong - I must have been drunk when I "read" that... It sounds like an N55 - I don't know where I saw this - I definitely didn't make it up. Click here to enlarge
    Last edited by inlineS54B32; 08-03-2013 at 10:03 PM. Reason: wrong

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    Click here to enlarge Originally Posted by nitehawk Click here to enlarge
    Alpina never sells any of their components separately. Only Alpina owners can get them


    Ahhh! Learn something new everyday.

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    ^ just ignore this post completely - I am an idiot today. lol - two up from here.
    Last edited by inlineS54B32; 08-03-2013 at 10:12 PM. Reason: two up :)

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