V8 swap into I6 280SE W108 - Page 14 - Mercedes-Benz Forum

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post #131 of 162 (permalink) Old 11-18-2010, 02:01 AM
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Thanks 50$84sd. Hopefully it will be finished come mid January. Nice little selection of cars there bfryme, and and interesting combo with the Porsche and Subaru STI. Some pics of that would be awesome! So the 200 is a finny right? What you got planned?
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post #132 of 162 (permalink) Old 11-18-2010, 12:48 PM
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Gwunta,

Yep, the 200 is a finny.

I am planning on adding EFI / Ignition to it. I want it to still have the "flavor" of it's original design, which means a 4 cylinder. But, I have a goal of around 180hp, almost twice stock.

After that, modern rims, and upgraded suspension. Change to a modern AC unit instead of that giant compressor.

I want it to look the part of a classic, but drive like a modern car.

The 914/Subie is still under construction, and don't have any pictures to share right now.

-- brett
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post #133 of 162 (permalink) Old 12-19-2010, 01:23 PM
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Originally Posted by gwunta View Post
Thanks again Ricardo. Are you looking to transplant a new engine and driveline or just renew the existing mechanicals? Starting with a good car is certainly a huge head start. Keep it original and the value is sure to climb over the years. If you are looking at doing a non-mercedes engine then its going to be a long road but it can be very rewarding. I also have a deep blue W109 (with a 2.8L injected 6 cylinder) which I plan to keep in orgiinal condition for value purposes.

If anyone out there is interested, I am after another set of californian headlights for my blue W109. I would be willing to swap a set of Euro headlights for them and I will pay freight to get them here. If anyone is interested in a possible swap please let me know.

cheers

G

Below is my W109

I'd love to get my hands on those headlights if you are still interested in swapping them for the U.S. spec 4 light setup.
tmchugh30@verizon.net
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post #134 of 162 (permalink) Old 12-20-2010, 03:14 AM
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Yeah Tommy I still have the headlights here and willing to swap. I will email you tommorrow with information and pictures of what I have.

Thanks mate

Grant
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post #135 of 162 (permalink) Old 12-20-2010, 07:42 PM
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What a great thread and what a nice job. Incredible...

Been thinking about a swap that involves the 1988 MB 350 SDL 6 cylinder turbo diesel drivetrain into a /8.

Can anyone shed some light on this or knows of one that has been done
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post #136 of 162 (permalink) Old 01-28-2011, 04:48 AM
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Not sure why you would want to put a 6 cylinder diesel into a /8 but Im sure its possible. I doubt very much that anyone has done it so you would be treading new ground and custom fabricating a lot of parts to make it all work. I would keep the driveshaft and diff and just replace the engine and gearbox. Gearbox should not be too hard as the /8 crossmember mounting points are adjustable rearwards or forwards. You cuold possibly modify the /8 gearbox crossmember to suit. Engine mounts for the 6 would be a bit of a challenge but I think the engine itself would fit given the fact that they could squeeze a 6.3 under the hood.

From the small amount of research Ive done on those particular diesels, the 350SDL seems like a pretty bad choice. There seems to be something wrong with the bottom end engineering on them causing them to break conrods. A few have experienced problems with injector pumps on them too. Still each to their own. Good luck if you go ahead, you are most likely treading new ground so I hope to read about your experience.
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post #137 of 162 (permalink) Old 01-28-2011, 04:52 AM
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Got the car unfinished to the biggest car show in Western Australia, called Motorvation. Its more of a revhead fest than anything else but still I made the elite hall with the car. Here's a few pics. Note the completed trunk / boot fitout and the engine now in and complete.

Only got to fabricate the last of the exhaust, a fuel pump bracket (may source one from a W109) and a remote mount water pump bracket and she's ready to fire up.





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post #138 of 162 (permalink) Old 01-28-2011, 04:53 AM
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Got the car unfinished to the biggest car show in Western Australia, called Motorvation. Its more of a revhead fest than anything else but still I made the elite hall with the car. Here's a few pics. Note the completed trunk / boot fitout and the engine now in and complete.

Only got to fabricate the last of the exhaust, a fuel pump bracket (may source one from a W109) and a remote mount water pump bracket and she's ready to fire up.





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post #139 of 162 (permalink) Old 05-26-2011, 08:27 PM
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I just came across this thread, so I am going to backfill a bit.

Early in the thread there is mention of a VW A1 rack & pinion. There is also a question of whether power steering was available. Somewhere in the back of my barn is a '87 VW Scirocco 16V, with power steering. The Scirocco was an A1 chassis until at least '88. I believe the Cabriolet also had P/S (after all, it is a girls car, with 85% female ownership) That was an A1 chassis car until the first body change, I think that was '92.

There is mention of plastic engine blocks. Can't beat 'em. I have had one for the SBC for about 20 years. It's original purpose was as a display item for chrome valves covers, oil pans, etc. It is out on loan to a friend now.

Somewhere in my stash. I have an engine swap "guide" from the late 70's, or early '80's. In there is a 108 converted to SBC. I don't have it at hand, but I recall that it was fairly simple. It did require a sump,and pick up,from an early 60's Nova/Chevy II. Those are standard "hotrod" items and are availableinthe aftermarket. I think it used a Powerglide, or Turbo 350. "Jaguars That Run" offers an adapter from the GM tranny to the MB dirve shaft. If I can find that book, I will scan it and post it.

I can't confirm this, I got it second hand from OZ, a 250C coupe will accept 450sl front and rear subframes as a "bolt in". My local bone yards are littered with those. So,if you are thinking of a conversion of one of those (I am) it looks like you can get V8 suspension, and brakes, for them.
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post #140 of 162 (permalink) Old 05-27-2011, 04:51 AM
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I can't confirm this, I got it second hand from OZ, a 250C coupe will accept 450sl front and rear subframes as a "bolt in". My local bone yards are littered with those. So,if you are thinking of a conversion of one of those (I am) it looks like you can get V8 suspension, and brakes, for them.
From what I know the r107 and the W114/115 chassis share the same chassis platform. So yes, in theory you could swap all mechanical elements from a 350, 450 or 500 SL/C. The 560SL was a bit different, especially the front suspension and brakes, but I guess it would fit.

If I were you, I would seriously consider a 560 engine: Alloy block and ancillaries make it a good 50 to 60kg lighter than the 4.5 iron block, and you get 1 more liter displacement. These engines are also everywhere in junkyards and will also be a bolt on if you use the right parts. The really good thing is that these alloy V8s are the same weight as the original L6s in the W114, so the overall balance is not altered and suspension does not need to be modified. An engine out of a 500 or 560SL will be a direct fit. I you source a good 5.6 engine out of a W126 560, you will need to replace the engine mounts brackets with V8 r107 ones, as well as the oil filter housing to clear the chassis and the oil pan to clear the oil filter housing.(not needed if you get a 500SL/C or 560SL engine)

I you go with a W126 engine I have the engine mount brackets and oil filter housing you will need. You will still have to source the oil pan.
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