VNT 190d
VNT 190d
It will make the same power as any other turbo of a similar size, just sooner in the RPM range.
The biggest issue in your car is clearance; installing any custom turbo in a W201 will be a tight fit, especially if you need to use an adapter plate. Making a tube that rotates the mounting point up 90* will make a lot more room to work with.
You'll need to make adapters for everything- exhaust manifold, exhaust system, intake, compressor outlet, oil supply, oil draining and control of the vanes. There is nothing known that will bolt-in.
If you search, there are threads on many different control and mounting methods.
This is what I am going through adapting the stock parts to a custom setup basically. Everything basically has to be altered not a problem because when I do it. It tends to be better then stock in my opinion.