PeachParts Mercedes-Benz Forum - View Single Post

2.5Turbo · #4 10-13-2007, 01:38 AM

There isn't all that much modification potential in the 617 engine. It's just not designed for outrageous performance. It doesn't have a crossflow head and it only has 10 valves. Get an E300DT or a CDI if you want easy performance. Or if you like to tweak, get a 300SDL with a good 603 and start playing with the full load screw+pyrometer and maybe in intercooler. Anything can be done with the right amount of money, but the question of practicality arises.

Super performance on these engines does not come cheap. Everything you can easily do with stock components and easy mods have already been outlined.

Nitrous won't help much at all. Remember, diesels operate on the principle of excess air, so adding more oxygen (which is what really isn't going to do much unless you can provide the fuel to make use of it. Same goes with the boost...sure, you might be able to [dangerously] get 20psi out of your stock turbo, but all you'll be doing is drastically heating the intake charge and endangering stuff like your head gasket. Unless your IP is modded to provide more fuel (and that opens up the whole EGT can of worms), more air isn't going to do any good.