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#1
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Fuel economy
What changes that anyone has done has kept at least the base performance on a 617 turbo but has made a noticeable improvement in fuel milage.
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#2
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change ip time to 28 degrees BTDC
drip method is best
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1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting 1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal 1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace 1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild, |
#3
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Do you want to try this on mine Mike?
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Nick ***** 2002 Sprinter 2500 140" High Roof : |
#4
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2.47 rear end, timing advance, no acceleration on the uphill, slooooow acceleration from stop, time stoplights so you roll through rather than stopping, never touch the brakes, coast whenever possible, make your idle low (like 600-650rpm). If you really wanna get good mileage, the #1 thing to do would be to improve aerodynamics of the car. Front air dam, side skirts, wheel covers, boat tail, underbody panels and fairings behind the rear tires. Also removing mirrors, improving the shape of the front of the car, and removing all exterior trim would help.. I have been really tempted to try all these things.
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99 E300 Turbodiesel 100k |
#5
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What is this "timing 27°BTDC" and how do you do that????
thx
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Current Garage 2008 Mercedes GL320 CDI 188k mi Repair/Work in progress 1994 S350 160k mi Garage Queen & prepping for repairs 2005 E320 CDI 203k mi Healthy & Daily Driver 1994 S350 357k mi Retried as parts car 1984 300TD 214k mi Blown OM617 Poss OM603 Swap?? Sold 1987 300SDL 200K+ 1994 S320 181K mi 2008 E320 Bluetec 127k mi 1999 S420 130K mi 1980 240D 360k mi 15+ Others that has come, stay and gone GONE, BUT NOT FORGOTTEN 1995 E320 SE 220k mi 1984 300SD 350k mi |
#6
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I have noticed that turning the ALDA out seems to improve mileage. If you go too far you have smoke and mileage goes back down. Anyone else noticed this?
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#7
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Do a search for "drip method" or look in the DIY links under timing for a writeup on how to adjust the timing via the drip method. You will need to purchase or make a drip tool.
As for the ALDA, I have mine gutted (the housing is on as a dust cap but there are no parts inside of it) and I have noticed that if I stomp it from a stop, it will smoke a little bit, but if you go easy (and I mean eeeeeeeaaaassy) on the go pedal it will respond in kind. Removing the ALDA gives you direct control of the rack. Just keep this in mind when you are driving and you will be able to control fuel delivery how you want it, whether it be only a little fuel or a lot.
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99 E300 Turbodiesel 100k |
#8
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300CD-
valves set very carefully, bye bye EGR, 247 diff, AAZ injectors @150 bar with 265 nozzles, vogtland springs lowered it quite a bit & ought to reduce wind resistance some, alda 1 turn cc -no smoke except a very little when just starting from cold.
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Thanx, Alberta Luthier 1983 300CD ('Stinky')155k miles, 2.47 diff, EGR removed, AAZ injectors with 265 nozzles from Sean,and vogtland lowering springs. 1984 300SD ('Old Blue')150k Klicks from Japan originally, came with rear head rests, no sunroof and never had an EGR |
#9
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Quote:
A couple of horsepower and a couple of mpg are said to result from replacing the cat with a straight pipe for testing purposes only. I plan a long test, say 200,000 miles, to get good data. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#10
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LOL!!!
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#11
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On an SD a cherry bomb muffler helps a little. I have also replaced my turbo with one from an OM603 engine (not exactly a drop in replacement) which is of newer design and all indications are that this too is an improvement in mileage and power.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday )( Kalifornistani emissons ) white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png |
#12
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Quote:
And like Greasy Beast, I drive like a geezer and time lights to avoid stopping as much as possible. I also don't carry any extra weight (junk in the trunk), and I have blocked off my EGR too... Last edited by rcounts; 04-25-2008 at 11:20 PM. |
#13
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So maybe I should be aware of what is "normal " city and highway mileage for these cars. I had a 80' sd that consistently got 26 in town and 29-31 on the freeway. No diesel since then has done that good.
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#14
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Trapped!
Quote:
The trap was installed between the exhaust manifold and the turbocharger. (See the attached pictures.) Many people replace the entire manifold assembly to get rid of the trap; I have chosen another route. Jeremy
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970 |
#15
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300CD as well.
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