Boost questions on OM606... - Page 3 - PeachParts Mercedes-Benz Forum

gsxr · #31 10-11-2007, 08:07 PM

Quote:

Originally Posted by Holset

If mynädiesel is too expensive, you might ask here

Interesting. Has Columbus Diesel done any work on 603 pumps before...?

http://www.columbusdieselsupply.com/

I was under the impression that no place in the USA had the knowledge to install 7mm elements into the 603 pump.

altz · #32 10-12-2007, 01:50 PM

Ok, allmost everything is clear, only some things like, how are the RPM-s raised? I mean if you change to 7mm elements does then the redline go higher?
And what to you guys think of using a huge holset turbo from volvo F10 ?
What exact parameter the HX40 has that you finnish guys use?

gsxr · #33 10-12-2007, 03:43 PM

You can adjust the redline yourself, that's easy. But there's nothing really to be gained by that. Most of the 603's will still make peak power at no more than 5000rpm, simply due to the way diesel engines function. The 606 may be a little higher thanks to the 24V/DOHC head but you're never going to get a real high-revving diesel.

The 7mm elements will increase fueling everywhere across the curve, which makes it hard to get the engine to idle properly. That's one of the things Myna has apparently figured out. If you max out a stock pump, usually the main hassle is making it return to idle like it used to.

I haven't worked with any Holset turbos, the Finland experts will need to help you out there...

KarTek · #34 10-13-2007, 07:09 AM

Quote:

Originally Posted by Holset

if emission regulations are tight as you wrote, then there is no way to replace OM603IP to 606

There should be some way to fool the computer and keep OBDII happy with a mechanical pump. Another thing I thought of is swapping in a Bosch VP-44 pump from a Cummins but I wonder about mounting, conversion of control signals, reported unreliability, total volume, etc...

Where does one go to learn the MB injection control signal structure, theory of operation, etc..?

Holset · #35 10-13-2007, 03:58 PM

Quote:

Originally Posted by altz

Ok, allmost everything is clear, only some things like, how are the RPM-s raised? I mean if you change to 7mm elements does then the redline go higher?
And what to you guys think of using a huge holset turbo from volvo F10 ?
What exact parameter the HX40 has that you finnish guys use?

Holset Hx40 has many variations of turbine/kompressor wheel and turbine housings. Mostly used combination is Kompressor 60mm, Turbine 65mm and turbine housing size 17cm3 hmm did i wrote correct

kynsi · #36 11-07-2007, 02:56 PM

Quote:

Originally Posted by Holset

Holset Hx40 has many variations of turbine/kompressor wheel and turbine housings. Mostly used combination is Kompressor 60mm, Turbine 65mm and turbine housing size 17cm3 hmm did i wrote correct

These parts and om606 made 426hp and over 700nm 1.6bar boost only light grey smoke.

http://s127.photobucket.com/albums/p142/kynsi/?action=view&current=skannaa.jpg

gsxr · #37 11-07-2007, 04:20 PM

Quote:

Originally Posted by kynsi

These parts and om606 made 426hp and over 700nm 1.6bar boost only light grey smoke.

http://s127.photobucket.com/albums/p142/kynsi/?action=view&current=skannaa.jpg

Wow! Can you post more information about the car? And what you had to do to the engine?

kynsi · #38 11-11-2007, 08:14 AM

Only mercedes own parts are used. If I had to replace one part because of failure, I find strong parts and leave old ones in garbage.

altz · #39 11-13-2007, 01:22 PM

you have allso om603 pump? What turbo ?

kynsi · #40 11-14-2007, 10:28 AM

Quote:

Originally Posted by altz

you have allso om603 pump? What turbo ?

124 OM606 pump with 7 mm pistons. Holset HX40W.

altz · #41 11-14-2007, 12:58 PM

Did you make the element swap yourself? How much fuel does the car consume? Liters per 100km?
Do you have a smoke problem on lower engine speeds?

KarTek · #42 11-14-2007, 03:01 PM

OM606 you say? I thought those pumps were not capable of that much power... Or is this a different OM606 pump than my '98?

gsxr · #43 11-14-2007, 07:30 PM

KarTek, the stock 606.962 pump has 6mm pump elements ("pistons"). Kynsi has a modified pump with 7mm elements. A Myna Diesel modded pump with 7mm elements is good for 450-500hp.

Does anyone know how much power can be produced with 6mm elements in either a 603 or 606 pump? I was able to buy a 606.962 pump, and I'd like to install the elements in my 603 pump. I know the 603 pump with 5.5mm elements can only make about 180hp... but I'd like to know how much power it would make with 6mm elements. Any information would be greatly appreciated... thanks!

Deni · #44 11-15-2007, 07:31 AM

Quote:

Originally Posted by gsxr

You can adjust the redline yourself, that's easy. But there's nothing really to be gained by that.

If you check the dyno graph Kynsi posted that engine keeps producing considerable power even after 5000 rpm (398hp @5600 rpm).

Even if the power starts decreasing in a stock engine, if you can keep the car in a lower gear longer (through having a higher max rpm limit). Correct me if I'm wrong. IIRC I read somewhere, one of the finnish guys was running an om606 super turbo at 7600 rpm

.

KarTek · #45 11-15-2007, 09:34 AM

Quote:

Originally Posted by gsxr

KarTek, the stock 606.962 pump has 6mm pump elements ("pistons"). Kynsi has a modified pump with 7mm elements. A Myna Diesel modded pump with 7mm elements is good for 450-500hp.

Does anyone know how much power can be produced with 6mm elements in either a 603 or 606 pump? I was able to buy a 606.962 pump, and I'd like to install the elements in my 603 pump. I know the 603 pump with 5.5mm elements can only make about 180hp... but I'd like to know how much power it would make with 6mm elements. Any information would be greatly appreciated... thanks!

Dave,

Based on posts from our Finnish friends above, I thought the 606 pump was not modifyable to any great degree... Hopefully I'm mistaken and it's just a translation thing...