[r129_guy]

but its single overhead cams. m119 double.

 

[FATHERTIME]

What year is your R129?

 

[Chicky]

Well, m113 bolts on to R129 chassis with no modifications.

Well yes, the M113 bolts on to the R129 chassis...but it's entirely different mating an M113 kompressor to an M119 cylinder head.

 

[AhEmGee]

but its single overhead cams. m119 double.

Doesn't matter. The ignition system is not compatible, so that would be have the swapped in its entirety as well for it to work huge job.

 

[Chicky]

If you find that thread on what he did to make that happen, it will take the dew off that rose.

Hello FATHERTIME,

Please search this sub-forum for M119 supercharger. I forgot the name of the former member from the UK. He had fitted on his R129 an ALBREX supercharger, the sad part, he got into an accident (a lot later) wherein the car was totaled but he took of the kit for resale.

I hope this helps

I've attached pictures below:

 

[r129_guy]

Nice. They use turbo as supercharger. Thats a good idea i guess.

 

[robm.UK]

They are belt driven centrifugal superchargers, apart from one roots or screw, can’t tell which.
I like the idea of electrical centrifugal, but they need a separate 48v battery and belt driven alternator charger. I’ll wait until someone develops a more efficient 40W electrical vortex supercharger that can be run off the main electrical system. 😁

 

[r129_guy]

Belt driven superchargers are not powerful enough as would be electrical?

 

[r129_guy]

You mean like this

LINK

 

[robm.UK]

I could hazard a guess what your motor would ingest if you fitted one of those 😉
No, the only ones worth fitting cost $$$$ IMHO. Advantage of electrical is the flat torque curve. You don’t have to wait until it spools up.

 

[wlb50]

When a manufacturer such as Daimler supercharges or turbocharges an engine, they have a lot of extensive engineering throughout the internals just to accommodate the extra boost and heat. I remember just to add a turbocharger to the old OM 617 diesel , a lot of internals such as the pistons were re-engineered.

They also implemented an oil injection system to hit the bottom of the pistons to keep the heat down.

I think to do the job right it is a little more than trying to find a supercharger that will "fit".

 

[robm.UK]

Yes, this is why the proper conversions cost $$$$. Unless you’re prepared to run low boost, and for the DIYer this means having one eye on the boost gauge the other on the road to avoid meltdown 🤣, you will need low compression pistons, head work, remap.

 

[whomegalul]

When a manufacturer such as Daimler supercharges or turbocharges an engine, they have a lot of extensive engineering throughout the internals just to accommodate the extra boost and heat. I remember just to add a turbocharger to the old OM 617 diesel , a lot of internals such as the pistons were re-engineered. They also implemented an oil injection system to hit the bottom of the pistons to keep the heat down. I think to do the job right it is a little more than trying to find a supercharger that will "fit".

It is really not that complicated. This engine was made to be boosted, it was used in the Sauber c9 and c11 race cars and boosted to well over 1000hp on a mostly stock engine. Mostly just to lower that high compression ratio. The guys at Kangaroo team brought one of their m119s to over 800hp on stock internals and have beaten the hell out of it on tracks day after day, redlining while drifting. Only head bolts had to be changed to thicker stronger ones.

 

[SLSLSLSL]

It is really not that complicated. This engine was made to be boosted, it was used in the Sauber c9 and c11 race cars and boosted to well over 1000hp on a mostly stock engine. Mostly just to lower that high compression ratio. The guys at Kangaroo team brought one of their m119s to over 800hp on stock internals and have beaten the hell out of it on tracks day after day, redlining while drifting. Only head bolts had to be changed to thicker stronger ones.

But what about the transmission? It doesn't break? 722.6 on SL500

 

[AG129]

Check out Stern Garage in Germany $$$$

M119 Eaton TVS R2650 Kompressor Umbausatz

Hiermit bieten wir Ihnen die Möglichkeit Ihrem M119 Motor durch unseren Kompressor Umbausatz eine ordentliche Mehrleistung zu verpassen. Hier die einzelnen Komponenten: Eaton TVS R2650 lader mit speziellem Hals CNC gefrästes Aluminium-Saugrohr mit vier Laminova Kühlkernen CNC gefräste Halter für...

stern-garage-shop.com

 

[Chicky]

Check out Stern Garage in Germany $$$$

M119 Eaton TVS R2650 Kompressor Umbausatz

Hiermit bieten wir Ihnen die Möglichkeit Ihrem M119 Motor durch unseren Kompressor Umbausatz eine ordentliche Mehrleistung zu verpassen. Hier die einzelnen Komponenten: Eaton TVS R2650 lader mit speziellem Hals CNC gefrästes Aluminium-Saugrohr mit vier Laminova Kühlkernen CNC gefräste Halter für...

stern-garage-shop.com

Hello AG129
... now if only the video was done in English

 

[AG129]

Hello AG129
... now if only the video was done in English

Their channel is always in German. The website can be translated though. They do a 6 liter conversion in addition to the supercharger. I think they also offer a 6 speed manual transmission conversion, I know the Slshop does offer a 6 speed manual conversion.

 

[SLSLSLSL]

Hello AG129
... now if only the video was done in English

And only 25k euros??? What a steal I'm about to get it

 

[SLSLSLSL]

In all seriousness though what's the most economical way to supercharge/turbo charge the sl500 r129 m119 to get some more low/mid end torque? for under 10k preferably and maintaining daily driver reliability

 

[Chicky]

There was a youtube video of a R129 M119 that had been turbocharged, however the turbo was set up at the rear underside of the car near the differential. Done in the USA.

Unfortunately i never downloaded it to my files.

I hope this helps.