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TheDon 05-15-2008 11:04 PM

TheDon's ecomodding plans
Hey everyone, It's time I get into this game since it looks fun :).

So far I have changed my driving style and habbits and jeeze driving like grandma has really helped:turtle:( no offense). I have turned my 21 mpg 2 ton sedan into a 28.7 mpg champ! All by just driving like my grandma.

Here is what I plan on doing before going extreme( bolting panels onto the car and such)

Now, the Mercedes Benz OM617.952( turbocharged 5 cylinder, federal emissions) has what we on the mercedes forums call an ALDA. This device limits fuel at launch for particulate control. It's basically an altitude compensator as well. Right now I have it adjusted for more power off the line. Surprisingly It doesn't smoke at all. But by adjusting it (screwing the set screw in) I can lower the amount of fuel delivered at launch as well as keep my launch speed down.

I really lucked out with the 1985 model year car since it has 2.88 gears in the rear end. Compared to the other years, the 2.88 yields the best mpg. The 4 speed slush box also gives better mpg's compared to a 4 speed swap since it helps keep the turbo in the optimum range.

Body wise... she's a brick. I need to figure out how to calculate frontal area

I could block off the grill and seal it off but I don't know what the negative effects would be on my engine.

I have swapped out the US spec lights


After ( with new wheels)
( and yes that is a Delorean DMC-12 I am towing!!!!!!It's my friends.. I found it for him ... 3 blocks from his house...I too aspire to "Live the dream" one day and own one)

My wheels are not the stock wheels. I upgraded to a 15" alloy wheel. I do have a line on some ultra light wheels.. If I want them I need to get weight on everything.

I can also swap out my US Spec bumpers for some euro specs which are smaller and probably lighter. The US bumpers are pretty heavy.

The driver, me, is a very light person so I think I can stay light and save some weight with the car :).

My extreme plans are to get some fender skirts made for the rear, delete the wipers, external mirrors. I lucked out again because the antenna is retractable. A member on one of the Mercedes forums got a rare AMG front air dam for this chassis ( W123) and will be making repop's... It might help... since there is currently nothing under the front bumper save for a small grill.

I also wish there was some form of mechanical mpg counter, I did notice the thread on it and will be watching for updates.

MetroMPG 05-15-2008 11:16 PM

Welcome to the forum. That's a super clean looking Merc. Thumbs up.

Thumbs up also on your progress to date - 21 to nearly 29 is a massive improvement!

Frontal area calculation methods:

You can get in the ballpark with (W * H * .84).

TheDon 05-15-2008 11:22 PM

well, my front end is basically a brick... LXWXH would work.. lol!

i'm going to see about some of those CLK wheels and or compare them to my current set as well as see the difference in weight in those and the bumpers.

Where does one get those special internal side view mirrors?

MetroMPG 05-15-2008 11:25 PM

I found mine in a regular auto parts type place.

TheDon 05-15-2008 11:37 PM

I'll look around. I was thinking about some fender skirts for the rear... But removable with like, velcro. -searches the forum-

MetroMPG 05-15-2008 11:43 PM

Good luck with velcro - I tried it. Held them on really well, but came off when I removed them the first time. I'll be installing some brackets (no drilling the sheet metal) in the near future.

There are some examples around of other skirts with hinges and removable fasteners.

ebacherville 05-16-2008 12:31 AM

Nice benz , same style as my diesel veggie benz, however mines proabbly lighter due to all the rust :)

There heavy beasts.. thats for sure..

Been debatingon what i could do the benz to make it more ero too.. but the CRX comes first for me .. cant wait to see what you do to yours

TheDon 05-16-2008 12:32 AM

I've already got the weights on the us bumpers

40 lbs each!!!


8 lbs each!!!

I'm upgrading!

ebacherville 05-16-2008 12:52 AM


Originally Posted by TheDon (Post 26198)
I've already got the weights on the us bumpers

40 lbs each!!!


8 lbs each!!!

I'm upgrading!

WOW thats quite a diffrence.. thats huge!!

TheDon 05-16-2008 10:56 AM

actually, now I am thinking about getting a different car. I'm thinking CRX.

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