performance injectors for 300D Benz - Diesel Truck Forum -
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post #1 of 4 (permalink) Old 10-30-2010, 12:35 AM Thread Starter
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performance injectors for 300D Benz

ok, im new to the benz world but not to diesels ( im a cummins nut ) but im having a hard time finding out who i can buy a set of performance injectors for my new project car ( 1985 300D Turbo ) im going to be running SVO all the time on a single tank setup , any recomendations for my application ??? please help!
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post #2 of 4 (permalink) Old 10-30-2010, 12:55 AM
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300 D

Their are no performance injectors for this car. You can have the fuel turned up on the injection pump and increase the turbo boost by adjusting the waste gate spring.. Make sure the electric boost dump valve on the fire wall is working. Adjusting the boost can be tricky. A field service rep from MTU in Germany showed me how to do it. You can start by adjusting the compensator on top of the pump
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post #3 of 4 (permalink) Old 10-30-2010, 01:52 AM Thread Starter
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thanks, thats what i pretty adapt at turning up injection cummins is tweaked beyond belief.... what pump is on these old mercedes.. i just bought the car and havent picked it up yet...if its the Lucas CAV like most diesels of that year and make then i know just what to do

any other mods i can do, besides straight pipe, BHAF , wastegate blow off pressure, and injection pump mods

do they sell bigger delivery valves ?
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post #4 of 4 (permalink) Old 11-13-2010, 01:13 PM
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Most of the stuff for these cars is custom but there's a few places to get parts out there. Your car has a Bosch "MW" pump. There's a guy in Germany that I've had very good dealings with who custom fabricates 6.5mm elements for them, code named "Holly".

These would be good for over 200HP, I think.

You can also fit a VGT for better response and more boost.

As far as delivery valves, I have a set of cut valves (ala Cummins) for my "M" pump but I haven't installed them yet because I hear they don't work as nicely as they do on the Cummins. (Too much smoke, poor idle).

As stated above, there are no performance injectors because the stock injectors will support plenty of extra power with the right elements.


2000 Ford F250, Merillion, 6sp, AIC, DPTuner, BB turbo, Adreneline pump, modified IDM.

1998 Mercedes E300, Custom injector nozzles, soon to have Eaton M90 supercharger, 7.5mm pump elements, Holset HX40 turbo and a full custom intake and exhaust system = 400HP from 3.0l
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