Kleeman sold a supercharger kit for the NA m112 that yielded similar results to the C32 AMG.

Very stealthy.

 

To get back on track, Sully the OP asked about turbo-charging the durable M112 engine with the strong 722.6 transmission in the car he already has as his platform. He seems very knowledgeable about pros-cons of turbocharging.

Seems like a viable platform. Maybe someone, somewhere has already done this?

 

Agree not everyone wants a diesel. Those that like them like them quite a lot. However, I'm not sure the now fairly old CDI is particularly "complex" compared to gas engines of similar vintage.

 

M113 vs om648? I'll take the maintainance cost of the dead simple V8 gasser over the diesel any day. This is coming from a diesel owner.

 

Not everyone wants a diesel. If you need to go faster you can quickly and easily swap a V8 in it. The NA 5.4 from the C55/clk55 would be ideal. Cheap simple power with none of the complexity of the diesel.

 

+1^^^^^^^^^^^^^^My '05' E320 CDI (last year of the durable iron block I6/pre-Blue-tec) is stock at 369 ft.lbs. of torque. Amazing passing power especially at highway speed. I'm sure folks have figured out a way to boost 'em up too.
But all the right stuff is already there.

 

If you really, really want a turbo in a W211; perhaps I could interest you in a CDI? It comes turbocharged from the factory! :surrender:

 

And its no slouch off the line. More torque than any but the large displacement supercharged or turbocharged gassers found in this chassis.

 

Thanks,I know what you mean about spending more than it's really worth. I have some good connections on the stuff to build the system but as I mentioned i don't want to build something that is ill tuned and hard to drive.The fact that there is a kit (kleeman) shows the car will handle low boost.I just wonder how much tweeking the ECU took? Some cars are over built from the factory and have enough fuel pump and injector to run low boost in stock form without maxing out the injectors. If this is the case then the ECU will have to be reflashed but it won't be a total nightmare.

Sounds like I need to see how much boost the Kleeman kit makes,the injector size and if they run a larger or second fuel pump.This will give me a ball park on cost and then I can look into the cost of reflashing the ECU. I won't go broke doing this.If everything falls into place then I will consider it.I enjoy this car and won't bastardize it doing a half ass job.

The last car I turbocharged was FWD weighed 3200lbs and trapped 112mph at 8psi.(no traction)Cruising 70MPH..foot to the floor and like that you were at 130mph.When i was at hwy speed and overtaking a car it was almost impossible to stop from hitting 100 mph in the time it took to pass.The high CR spools smaller turbo's instantly. It's something that you start to miss after a while.

I will give it a lot of thought,not something I will jump into.

 

Anything can be done, but at what price? It would be cheaper to just find a V-8 model and
get over 300hp stock and around 330lbs of torque.
The ECU reprogramming and larger injectors will cost more than the the turbo and the
exhaust plumbing. There is a point of diminishing return on a project like this for a MB.
A admire your ambition and if you still want to do it you probably already know that
Garrett can supply the turbo and most likely has a place that can do the ECU. Bigger
injectors can require a larger fuel pump hard to source one that fits this chassis.
The other option is a blower from Kleemann. They have it all, the pump, the injectors and the
ECU. However you could be into an AMG E55 for the money Kleemann will get.