W124 - V12 models - PeachParts Mercedes-Benz Forum

Brabus 3.6-24 · #1 06-26-2010, 12:19 AM

I just went by ebay.de and found my new love

But the price makes me think twice

Any one has more information about the modification that needs to be done for such a conversion regarding the chassis of the car?
The firewall looks a bit pushed away

http://suchen.mobile.de/fahrzeuge/showDetails.html?__lp=3&scopeId=C&sortOption.sortBy=price.consumerGrossEuro&sortOption.sortOrder=ASCENDING&makeModelVariant1.makeId=17200&makeModelVariant1.modelId=64&makeModelVariant1.searchInFreetext=false&makeModelVariant2.searchInFreetext=false&makeModelVariant3.searchInFreetext=false&vehicleCategory=Car&segment=Car&minFirstRegistrationDate=1991-01-01&maxFirstRegistrationDate=1995-12-31&siteId=GERMANY&negativeFeatures=EXPORT&damageUnrepaired=NO_DAMAGE_UNREPAIRED&export=NO_EXPORT&customerIdsAsString=&lang=de&id=119262040&pageNumber=3

Pagz · #2 06-26-2010, 01:48 AM

Nice!,I looked into this a few months back for my 202,however was put off by the massive increase in weight!.

Ortolan · #3 06-26-2010, 10:27 AM

I wonder how many V12s are out there. Brabus made at least one. Some unknown garage somewhere in the world has probably made one too. Must be quite an effort to squeeze that engine into the W124.

MAG58 · #4 06-26-2010, 12:32 PM

I've always thought that a cool car would be a W126 SEC with the M120...

That said I don't think it would be "too" difficult. By that I mean I think you'd only have to 'massage' the first firewall, I don't think you'd have to cut back the actual firewall. I doubt even any fender work, it's narrower than the M119...

Ortolan · #5 06-27-2010, 12:50 AM

Quote:

Originally Posted by MAG58

I've always thought that a cool car would be a W126 SEC with the M120...

That said I don't think it would be "too" difficult. By that I mean I think you'd only have to 'massage' the first firewall, I don't think you'd have to cut back the actual firewall. I doubt even any fender work, it's narrower than the M119...

The amount of work for the SEC would probably be similar to this:
M120 into 560SL (With Pictures!)

Pagz · #6 06-27-2010, 12:55 AM

When i looked at one it seemed the sump would be in the wrong location for my 202,not sure about the 124.

Roncallo · #7 06-27-2010, 11:31 PM

Quote:

Originally Posted by MAG58

I've always thought that a cool car would be a W126 SEC with the M120...

That said I don't think it would be "too" difficult. By that I mean I think you'd only have to 'massage' the first firewall, I don't think you'd have to cut back the actual firewall. I doubt even any fender work, it's narrower than the M119...

The M120 has been put into a 560SEC. See:

http://www.youtube.com/watch?v=QpytnbbMfyw

I also am aware of another one in progress in CA.

Roncallo · #8 06-27-2010, 11:32 PM

Quote:

Originally Posted by Pagz

When i looked at one it seemed the sump would be in the wrong location for my 202,not sure about the 124.

There are at least 2 sump configurations for the M120. 129 version uses a front sump. 140 version uses a mid sump. There may be others.

MAG58 · #9 06-27-2010, 11:34 PM

That's it, I'm selling all personal possessions and living in a box until I can find an SEC and a 120 to bring together in glorious harmony. You would have any idea as to the difficulty of the swap compared to your 107?

Roncallo · #10 06-27-2010, 11:35 PM

M120's are very cool motors. Everything gets better with the M120 in the 107. HP is almost doubled, gas mileage goes up about 15%, vibration goes down and the sound.

Sweeeeeeeeet

Pagz · #11 06-28-2010, 04:30 PM

Quote:

Originally Posted by Roncallo

There are at least 2 sump configurations for the M120. 129 version uses a front sump. 140 version uses a mid sump. There may be others.

Ah just like on the M113's. Did you weigh the 120 before you installed ?

Cheers

Roncallo · #12 06-28-2010, 07:30 PM

Quote:

Originally Posted by Pagz

Ah just like on the M113's. Did you weigh the 120 before you installed ?

Cheers

Yes

Fully Dressed it weighs 667LB. I weighed it with all accessories either installed or put on top as shown in the photos. It also includes the engine stand fitting which If I recall weighs 7 Lb.

Roncallo · #13 06-28-2010, 07:33 PM

Quote:

Originally Posted by MAG58

That's it, I'm selling all personal possessions and living in a box until I can find an SEC and a 120 to bring together in glorious harmony. You would have any idea as to the difficulty of the swap compared to your 107?

It's hard to estimate that without personally having done it, but knowing it's been done before is always a big help. For my 2000 mile away ball park estimate I would say about the same amount of work.

Pagz · #14 06-29-2010, 02:22 AM

Quote:

Originally Posted by Roncallo

Yes

Fully Dressed it weighs 667LB. I weighed it with all accessories either installed or put on top as shown in the photos. It also includes the engine stand fitting which If I recall weighs 7 Lb.

Well done!,thanks John.

MAG58 · #15 06-29-2010, 10:45 AM

From my calculations, you're looking about a 50lb penalty over a 2JZ. For twice the displacement, more power (stock for stock), and that godalmighty V12 howl....worth it. From what I've read it's only 12lbs heavier than the very first gen Viper motors, which got about 20lbs heavier in successful generations...

That's not bad for a ginormous V12!