300 sdl performance mods - Page 2

240D 3.0T · 04-06-2009, 06:00 AM

Quote:

Originally Posted by Goatman

LOL. Whadda maroon...

You're talking about yourself in the third person again.

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DslBnz · 04-10-2009, 12:37 AM

Hello! It's been sometime!

Gentlemen..It has been my opinion that one does not generally buy a W126 diesel for powerful performance. You don't buy any W126 for it's handling characteristics. A Mercedes S-Class is designed to be an opulent, safe, mildly sporting luxury sedan, in the Teutonic sense. They are what they are. That being said...

To summarize:

The OM603 motor is capable of providing 180 hp maximum simply by making a few adjustments to the injection pump (There's a specific procedure that must be followed). It can do this reliably without any other modifications. It is recommended that an exhaust gas temperature gauge be preeminently installed. A decent intercooler will help to keep things cool under sustained maximum loads.

If one desires the engine to produce even more power, injection pump internal upgrades will be required. These engines have been documented in making well over 400 hp on stock internals (but that's pushing things).

So yes, they are capable. 230 hp is possible but will cost a few bucks to get there. How much? Thousands if it's done right. I'd imagine it wouldn't cost much more at that point to get to 300. But you also must be a skilled craftsman, or possess excellent social connections.

fixbenz · 04-10-2009, 10:20 PM

I just want to mention the SVO/WVO comment earlier, I have a greasecar kit in my 97 that I installed and re-engineered myself. I have not had any problems with it other than some soot. It is imperitve that you use the cleanest oil with no water in it. I would also recomend a solid state inline fuel heater, not really needed inthe south but would add it anyway, to maximise the hot WVO.

I have just done routine oil changes, and have not had any problems

harkgar · 04-11-2009, 09:06 PM

Quote:

Originally Posted by Goatman

LOL. Whadda maroon...

I sat in a Hyundai Genesis today and must confess it is inferior to same size MB products (like the old C class coupe with Krompressor) but hey, it costs much less! The V6 has 300 horses and the 4 cylinder turbo 210 horses. The Track package is extremely tuner friendly and since it is fundamentally the Mitsubishi Evo engine 300 horses should be easy. It is also rear wheel drive and available in stick.

Why can't MB do its cars in the same manner to allow for power enhancement? I guess AMG power should only come from factory.

Goatman · 04-12-2009, 11:24 AM

Ever dealt with an engineer from Germany? I have.....and the stories are true. Right even when they're wrong..

Perfect job for the king, if he only had a brain....

One thing I know or sure is, the Hyundai will give you less problems, better fuel economy, and is less than half of an MB. Not to mention the warranty... A great deal for those not hung up on badges.

TMAllison · 04-12-2009, 02:33 PM

Quote:

Originally Posted by Goatman

One thing I know or sure is, the Hyundai will give you less problems, better fuel economy, and is less than half of an MB. Not to mention the warranty....

More hoof and mouth disease G'Man. W/O the warranty no one would buy one. Based on your comments you are a candidate for one of those $2500 Tata Motors vehicles or maybe one of the cheapo cars that will be made in China. They'll prob offer 150k warranty to get people to buy that cr*p.

Goatman · 04-12-2009, 06:52 PM

Like saying MB doesn't have synthetic trans fluid, or some other kind...

There's a reason why the list goes Toyota, Honda, Hyundai.

The sharper among us will notice MB isn't on that list....

Berde · 05-01-2009, 01:12 AM

Can you take the overcharge valve out and still boost to 16 PSI with just injection pump diaphragm worked? Of course intercooler in place too...

Goatman · 05-01-2009, 06:26 PM

I would imagine the head gasket would be out to say hello with 16 psi pushing on it..

240D 3.0T · 05-02-2009, 06:56 AM

Quote:

Originally Posted by Berde

Can you take the overcharge valve out and still boost to 16 PSI with just injection pump diaphragm worked? Of course intercooler in place too...

Yes but its pointless. The stock pump on the SDL is only good for 175hp worth of fuel so more than 14psi is a waste of energy.

Quote:

Originally Posted by Goatman

I would imagine the head gasket would be out to say hello with 16 psi pushing on it..

Thank you for displaying your ignorance once again.

Goatman · 05-02-2009, 08:18 AM

Teach us your Volvo knowledge, oh king of king's..... Whadda chump.....

04-12-2009, 11:24 AM	#30
Goatman Senior Member Join Date: Oct 2008 Location: MA Posts: 331 Drives: 1987 SDL; 2001 Chevy 2500HD CC, 8.1L, Allison special order; 1970 GTO LS2, 4L60E, under construction	Ever dealt with an engineer from Germany? I have.....and the stories are true. Right even when they're wrong.. Perfect job for the king, if he only had a brain.... One thing I know or sure is, the Hyundai will give you less problems, better fuel economy, and is less than half of an MB. Not to mention the warranty... A great deal for those not hung up on badges. __________________ 2x Grand Champion

04-12-2009, 06:52 PM	#32
Goatman Senior Member Join Date: Oct 2008 Location: MA Posts: 331 Drives: 1987 SDL; 2001 Chevy 2500HD CC, 8.1L, Allison special order; 1970 GTO LS2, 4L60E, under construction	Like saying MB doesn't have synthetic trans fluid, or some other kind... There's a reason why the list goes Toyota, Honda, Hyundai. The sharper among us will notice MB isn't on that list.... __________________ 2x Grand Champion

05-01-2009, 01:12 AM	#33
Berde Member Join Date: Jan 2009 Posts: 90 Drives: 1987 300 SDL	Can you take the overcharge valve out and still boost to 16 PSI with just injection pump diaphragm worked? Of course intercooler in place too... __________________

05-01-2009, 06:26 PM	#34
Goatman Senior Member Join Date: Oct 2008 Location: MA Posts: 331 Drives: 1987 SDL; 2001 Chevy 2500HD CC, 8.1L, Allison special order; 1970 GTO LS2, 4L60E, under construction	I would imagine the head gasket would be out to say hello with 16 psi pushing on it.. __________________ 2x Grand Champion

05-02-2009, 08:18 AM	#36
Goatman Senior Member Join Date: Oct 2008 Location: MA Posts: 331 Drives: 1987 SDL; 2001 Chevy 2500HD CC, 8.1L, Allison special order; 1970 GTO LS2, 4L60E, under construction	Teach us your Volvo knowledge, oh king of king's..... Whadda chump..... __________________ 2x Grand Champion

04-10-2009, 12:37 AM	#27
DslBnz Senior Member Join Date: May 2003 Posts: 281	Hello! It's been sometime! Gentlemen..It has been my opinion that one does not generally buy a W126 diesel for powerful performance. You don't buy any W126 for it's handling characteristics. A Mercedes S-Class is designed to be an opulent, safe, mildly sporting luxury sedan, in the Teutonic sense. They are what they are. That being said... To summarize: The OM603 motor is capable of providing 180 hp maximum simply by making a few adjustments to the injection pump (There's a specific procedure that must be followed). It can do this reliably without any other modifications. It is recommended that an exhaust gas temperature gauge be preeminently installed. A decent intercooler will help to keep things cool under sustained maximum loads. If one desires the engine to produce even more power, injection pump internal upgrades will be required. These engines have been documented in making well over 400 hp on stock internals (but that's pushing things). So yes, they are capable. 230 hp is possible but will cost a few bucks to get there. How much? Thousands if it's done right. I'd imagine it wouldn't cost much more at that point to get to 300. But you also must be a skilled craftsman, or possess excellent social connections.

04-10-2009, 10:20 PM	#28
fixbenz Almost a Member! Join Date: Feb 2007 Posts: 63 Drives: cheaper than a benz...	I just want to mention the SVO/WVO comment earlier, I have a greasecar kit in my 97 that I installed and re-engineered myself. I have not had any problems with it other than some soot. It is imperitve that you use the cleanest oil with no water in it. I would also recomend a solid state inline fuel heater, not really needed inthe south but would add it anyway, to maximise the hot WVO. I have just done routine oil changes, and have not had any problems

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