so I have done a vast amount of research and reading this weekend. and from what I understand to extract additional power from a diesel in general theory, an example turbocharged four stroke mechanical direct injection diesel engine, it seems quite simple.. fuel makes horsepower.. however you need air for the fuel so more air and more fuel = more power. So lower the compression ratio a bit, add more fuel by increasing fuel pressure and/or increasing fuel injector flow, increase boost pressure or go to a larger turbo, tune the injection timing just right, reduce exhaust backpressure, insulate the turbo and exaust manifold for thermal efficency, large/efficent aftercooler, port/polish the head, possibly open up the intake manifold to also increase airflow along with a bigger air filter and carefully monitor EGT, boost, and fuel pressure. Now doing all of that I think could get me 200 HP easily starting with a 120 to 140 HP engine. my question is about reliability. I mean the MB 3.0 5cyl is known everywhere to be very quite "bulletproof" in its stock form when it comes to reliability. so that begs the question.. how long would I expect to get 200 HP from this engine? Not very long ? or who knows ? If one started with a fresh rebuild and very precise "racing quality" machine shop work I think it can be done. Cummins gets 175 to 275 HP out of thier 3.9 liter four cylinder engine and mercuiser gets 165 to 200 HP from thier 2.8 liter four. Of course these are purpose built marine units, but its not rocket science! its diesel science!
has anyone done any performance mods to thier diesel ?
any thoughts ?
1976 Mercedes Benz 300D
1987 Mercedes Benz 300TD sedan
1984 Mercedes Benz SL300D turbodiesel
2001 Dodge Ram 3500 4x4 Dually Cummins Diesel
1974 30\' Uniflite \"Salty Dog\" sportfisherman powered by (2) 617 951 MB turbodiesels