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    SpeedDriven M275 V12 Turbo Upgrade

    SpeedDriven has announced that they have a billet wheel upgrade for the M275 Mercedes V12 twin turbo. This upgrade is available for every iteration of the twin turbo V12, CL600, S65, SL 65 Black Series, etc. There are no dyno graphs available yet but we are wondering how they are doing this exactly. It has been said it is difficult to modify the turbos due to the turbos being integrated into the cast manifold. The stock turbos are K24 turbos which are well known in the Porsche world and often modified. We look forward to further details, the upgrade retails for $5990.

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    Here is how to remove the turbo. It seems like it bolts off the manifold.

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    Not to knock this product but you have to remove the engine and spend 6grand? Might as well spend 1/3 of the billet wheel cost and tune the V12 BiTurbo to 600hp and 700tq (easily). I believe I have heard people getting 60whp and 80wtq on these cars with a tune.
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    Click here to enlarge Originally Posted by Karo Click here to enlarge
    Here is how to remove the turbo. It seems like it bolts off the manifold.

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    If you can remove the turbo I don't understand why we haven't had upgrades much earlier.
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    Click here to enlarge Originally Posted by Karo Click here to enlarge
    Not to knock this product but you have to remove the engine and spend 6grand? Might as well spend 1/3 of the billet wheel cost and tune the V12 BiTurbo to 600hp and 700tq (easily). I believe I have heard people getting 60whp and 80wtq on these cars with a tune.
    Yes, true. We haven't seen any power gain to justify this yet but there are a lot of turbo upgrades for the stock K24's from the Porsche world that would make a huge difference...
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    Click here to enlarge Originally Posted by Karo Click here to enlarge
    Here is how to remove the turbo. It seems like it bolts off the manifold.

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    Actually, from what I read here it says the turbo must not be disassembled. Look at point 15: "Turbocharger and exhaust manifold are one unit and must not be disassembled, as this can lead to leakage."
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    Click here to enlarge Originally Posted by Sticky Click here to enlarge
    Actually, from what I read here it says the turbo must not be disassembled. Look at point 15: "Turbocharger and exhaust manifold are one unit and must not be disassembled, as this can lead to leakage."
    My ADHD didn't allow me to read the whole steps loool Interesting, so back to your original comment. How do you upgrade these???
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    Also there are price differences in Turbos as well. I wonder if the 65 turbo might be a little bigger? If so that might be an option for the 600 guys.


    65 AMG turbo A 275 090 29 80 = 3,052 each
    600 turbo A 275 090 12 80 = 2,392 each
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    Click here to enlarge Originally Posted by Karo Click here to enlarge
    My ADHD didn't allow me to read the whole steps loool Interesting, so back to your original comment. How do you upgrade these???
    I don't know, that is what bugs me. No one has answered this question.

    If it was possible to simply bolt off the turbo, there are tons of upgrades from the Porsche world that would carry over and we would see these motors doing some insane things.
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    Click here to enlarge Originally Posted by Karo Click here to enlarge
    Also there are price differences in Turbos as well. I wonder if the 65 turbo might be a little bigger? If so that might be an option for the 600 guys.


    65 AMG turbo A 275 090 29 80 = 3,052 each
    600 turbo A 275 090 12 80 = 2,392 each
    I don't see why there would be a price difference? From my understanding they are the exact same K24 turbos.
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    Anything with a V12 you have to remove the engine. There is no room to work in there...at ALL. even the NA V12s.

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    Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
    Anything with a V12 you have to remove the engine. There is no room to work in there...at ALL. even the NA V12s.
    I think that is reflected in the price, that would make sense.
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  14. #14
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    They just posted this "package" as being available including this turbo upgrade:

    Click here to enlarge Originally Posted by SpeedDriven Click here to enlarge
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    SPEEDRIVEN PREMIER V12 BITURBO PKG
    800 + HP PERFORMANCE PKG

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    Speedriven's premier V12 Biturbo tuning PKG outperforms even in the mighty SL65 Black Series, with all subtlety of the original, legendary AMG Q-ships.

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    Available for all 2003 + V12 Biturbo Mercedes-Benz / AMG / Maybach | 14480 USD
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    I would just have a shop remove the engine should not cost more then 1500 for a uninstall and reinstall. talk the turbos off my self. And send them to get a porsche billet wheel upgrade. for 1/4 of the price

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    Click here to enlarge Originally Posted by 600whp S4 Click here to enlarge
    I would just have a shop remove the engine should not cost more then 1500 for a uninstall and reinstall. talk the turbos off my self. And send them to get a porsche billet wheel upgrade. for 1/4 of the price
    The exhaust side is cast into the manifold, how do you do that?
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    This picture should show you what I mean:

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    2 out of 2 members liked this post. Yes Reputation No
    Click here to enlarge

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    I know it's a different turbo and vehicle, but the Nissan GT-R turbos are also integrated to a cast manifold from the exhaust side and they have been modified by several different tuners.

    I don't see why that cant be done to the K24s unless I'm missing something besides that precaution that they could leak if taken apart?

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    Click here to enlarge Originally Posted by Stix Click here to enlarge
    I know it's a different turbo and vehicle, but the Nissan GT-R turbos are also integrated to a cast manifold from the exhaust side and they have been modified by several different tuners.

    I don't see why that cant be done to the K24s unless I'm missing something besides that precaution that they could leak if taken apart?
    I didn't realize that, you raise a very good point.

    Why can't they take it apart and then seal it? I don't know, the K24's are easy to modify...
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    i agree, it woudl be cheapter to port and add a bigger CHRA wheel and call it a day.
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    Maybe there is something more to it.
    Could it be that tuners feel there isn't a big enough market for it and will not sell?
    Then again, Sticky mentioned that the K24s are the same turbos used in the Porsche community so there should be a way to use/carry over those on to the M275.
    Could it be a tuning issue rather than a hardware issue?

    I would really love to see what these motors can really put out.

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    Click here to enlarge Originally Posted by Stix Click here to enlarge
    Then again, Sticky mentioned that the K24s are the same turbos used in the Porsche community so there should be a way to use/carry over those on to the M275.
    Could it be a tuning issue rather than a hardware issue?
    The hardware is fairly simple due to what I mentioned. There are various K24 upgrades out there.

    Tuning I don't see as a big deal either, tuners have a good grasp on these motors since we have had them since 2003.

    I don't know what it is, surprised no one has tried. The cars are getting fairly cheap though so you would think the aftermarket would be picking up. This motor deserves more attention.
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    That is a complex design, they turbine housing is part of the manifold casting. Also, the packaging is very tight. The compressor is practically butted up against the log header. And then there is the log header, not exactly built for efficiency; it is a packaging constraint.

    I think most of the problem with entering a market like this is, will your system fit?
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    Click here to enlarge Originally Posted by DBFIU Click here to enlarge
    That is a complex design, they turbine housing is part of the manifold casting. Also, the packaging is very tight. The compressor is practically butted up against the log header. And then there is the log header, not exactly built for efficiency; it is a packaging constraint.

    I think most of the problem with entering a market like this is, will your system fit?
    But if the Porsche guys modify the k24 turbos the same should be able to be applied here working within the packaging constraints, right?
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    I believe Sticky is right... why couldn't the K24 be sent to Blouch and have the compressor wheel be swapped out for a Mitsu 18g or 20g like the Porsche guys do? Then address fuel and tuning, and you're looking at big power, for "relatively" cheap.

    The SpeedDriven upgrade is a billet wheel, IIRC, so that would add significantly to the cost.

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