Here is a short movie taken this afternoon in my 1978 300SD as I increased the speed from 60 to 100mph.

This was done in high gear without downshifting. Just a smooth, steady flow of power from the turbocharged diesel in 4th gear. Took about 25 seconds to complete the pull.

If you look closely, you will see the oil pressure pegged at 45 psi and the coolant temperature at 150 degrees (F). That's with an outside temperature of 88 degrees (F) and the A/C on.

Damn...the server won't accept a MPG File.

Well, maybe I can figure a way out to host the clip somewhere else so you all can see it...Bert

If you have a home page you can post a link to it................I haven't been able to get into mine for a while now........

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I can host it if you like..
If its emailable...send it off to me at brandon314@gmail.com and I can host it for you.
boneheaddoctor can speak for my friendly (free) hosting services for people on the forum

I want to see!! and hear!!!!!!!!!...especially hear!!!

Video is here:

Doktor Bert's Video

Thanks...Bert

Too bad there wasn't any sound, it would be even neater to hear it. Nice job on that car. I just recently sold my 116 and miss that highway acceleration. The 116 beats the SDL there.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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David,

Keep in mind, I had to stop my throttle short of wide open to keep from depressing the kickdown switch and driving the transmission into 3rd speed range, so that pull was at about 3/4 to 7/8 throttle in 4th speed range.

I have (so far) been able to acheive 112-115mph (indicated) on this car. I am planning on swapping the 3.07:1 differential for a 2.88:1 in hopes of reaching 120mph.

Have you ever seen a 617 running at only 150 degrees (F) coolant temperature with the A/C on and nearly 13.0 psi of boost??? You get a short glimpse of the temperature indicator at the start of the clip.

What about those cupholders???...Bert

Yes..all the photos of my cars up on here and in the for sale forum are hosted by Brandon314519........something that has been greatly appreciated by myself.

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Man I would love to have the twin of that engine Doktor Bert...........

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

I think that if your car runs at 150 degrees it is running too COOL, these were designed to run at no less than 80 degrees C or about 176F and running them cool is not really good for them or your fuel economy. I know because I ran a '74 240D without a thermostat for a year and eventually the valves would not close properly due to carbon build-up. Sounds like your thermostat is stuck open to me...just my 2 cents.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

It's not that I'm doubting or anything, but to get to 120 mph in the SD, you'd have to be producing over 180 hp easily.

Are the W116 SD's really that robust? That's pretty darn good. Is this another "exception to the rule" car?

Also, I thought the 300SD had a 3.27 differential, and the later W126 had the 3.07/2.88 differential.

If you can get to 114 - 115 mph, that engine must be singing a very high song.

If this is genuine, it is extremely unusual.

(Call me a hypocrite)

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1987 300SDL (324000)

1986 Porsche 951 (944 Turbo) (166000)

1978 Porsche 924 (99000)

1996 Nissan Pathfinder R50 (201000)

Doktor Berts 300SD is a '78..........I have a '79 300SD and it has a 3.07 differential stock...........Visually confirmed by myself.

__________________
Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
---------------------
Section 609 MVAC Certified
---------------------
"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

Doctor, the cup holders are coming along. I have a member wanting a 116 model so I need to get those going. Luckily however I built one for my '79 before being sold so I still have the measurements. All together I'm very pleased with the way members here have responded.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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As he stated elsewhere, the car isn't stock... I'm curious as to exactly what's been done myself.

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I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG]