W110 Heckflosse Project (1966 200) - Page 5 - Mercedes-Benz Forum

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post #41 of 144 (permalink) Old 01-27-2012, 07:31 AM
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Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
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Thanks Mike. I've been looking for your writeup for a while. Maybe you can get it made a 'sticky' in the forum.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

http://www.megamanual.com/index.html
http://www.bgsoflex.com/megasquirt.html
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post #42 of 144 (permalink) Old 01-27-2012, 09:50 AM
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Vehicle: '70 280S-'73 450SLC-'81 380SL-'84 500SEC Euro-'92 300SL24-'95 E320
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Quote:
Originally Posted by bfrymire View Post
Here's some pictures with the head off, and overall condition.

Block looks fine, other than a blocked water passage, again from the lack of changing the coolant.

Mating surface looks fine, so, it was sealing well. (Compression was 150, 155, 145 and 160 if I remember right.)

Cam wear looks good. Should be able to attach a head and drive it...

Hey, anyone knows who can do some performance headwork on these old card? Mild porting with a mild cam?

-- brett
You brave soul......you work around all that heavy stuff barefoot??


1973 Mercedes 450SLC (PineGreen/MahoganyLeather)
1981 Mercedes 380SL FORSALE (LtIvory/PalominoMBTex)
1984 Mercedes 500SEC Euro (040Black/BlackLeather)
1992 Mercedes 300SL-24 Signal Red/Black Leather
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post #43 of 144 (permalink) Old 01-27-2012, 09:33 PM Thread Starter
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Date registered: Jun 2010
Vehicle: 1966 MB 200; Porsche 914 (6); Porsche 914 (Chev 350); 36 ford
Location: Sunnyvale, CA
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nice thread. Thanks for sharing.

Mine has stalled until I can make room for in the garage to continue work. Almost there with mine.

-- brett
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post #44 of 144 (permalink) Old 01-27-2012, 09:35 PM Thread Starter
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Date registered: Jun 2010
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Originally Posted by NorCalSL View Post
You brave soul......you work around all that heavy stuff barefoot??
Heh. No, that is when I am done. Most of the time, it's just sneakers.

-- brett
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post #45 of 144 (permalink) Old 12-23-2012, 05:05 PM Thread Starter
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Date registered: Jun 2010
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Update: Found a motor to use.

It's not the original, but it's a mercedes. It's the motor and trans from a 1998 C230. So, it's going to be a moderate project.

Good news, it's modern, and still a four cylinder and fits more the character of the car. Should be lighter than the original motor, better performance and gas mileage. I will have to swap out the rear diff after I get it sorted.

Challenges:

1. Getting the automatic trans to work. It's a 5g-tronic, and will require an ECU for the tranny. Well, the megashift will control it, but I will need to find out the wiring harness pin out, and the current capability of the solenoids.
2. Engine management will be megasquirt, and I have experience with that.

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post #46 of 144 (permalink) Old 01-13-2013, 10:35 PM Thread Starter
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Date registered: Jun 2010
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This is the start of the planning of the project:


What will need to be done:

1. Motor mounts. I made sure to get the engine arms from the C230. I may go back for the front crossmember.
2. Transmission Mounts. I got the C230 mount and will probably adapt from there.
3. Custom Driveshaft. This will graft the C230 and the MB 200 together.
4. Possible custom radiator. Either have a radiator shop add a core to the existing radiator
or have Griffen or someone make a custom.
5. Will need high pressure fuel pump / regulator and fuels lines to match. I have used a MSD 2225 and regulator before.
6. Tranmission shift linkage will need to be fabricated. I may go back and get the center console.
7. Hook up of Megasquirt and initial tuning. I have a spare MS II lying around and a relay board to go with it.
8. Getting Megashift to work. (this may be a big part of the work. Depends if it works right away.)
THis uses the MS GPIO board and the Megashift firmware to match.
Here: GPIO Basic Kit DIYAutoTune.com
And Here:GPIO Application Kit - MegaShift DIYAutoTune.com
Details: MegaShift - (c) 2004, 2012 Bowling and Grippo

Execution of this build will be done in cooperation of a shop. I have too many projects at the moment,
and if I take this on by myself, it will not get finished until I retire. I don't want to wait that
long. I have started communicating with one shop at the moment, and will have more info on that soon.

The big hurdle at the moment is getting the electronic transmission to work. There are solenoids that
actuate the gear changes. And I need to know how they work, the wiring diagram, and the current needed
for each of the solenoids. Some of the trans require combinations of solenoids to change gears.
You can see where this will get complicated.




Please feel free to comment.

-- brett
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post #47 of 144 (permalink) Old 01-26-2013, 08:53 PM Thread Starter
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Update: Transmission Choice

After going over the DVD from Mercedes (thanks Tom!), I have decided to go with a manual transmission. It appears there are three solenoides that control valves on the trans. The manual gives all the combinations, but doesn't show the wiring. I could take the trans apart and trace all of them, but, the time would add up, and the shop time could get expensive. In addition, the torque convertor is a variable lockup variety, which uses engine and road speed to determine the amount of lockup. Based on that, the ECU for the engine would need to communicate with the ECU for the trans, and I would need a VSS (vehicle speed sensor).

So, simple it is: Manual trans. So, now I need to source a trans, flywheel, etc to move forward at this point. I have found a shop to do some of the work for me, Original Customs in Napa, CA.

In other news, I got the starter to work on the old motor, just now, need to get it to run. (THis is just get it on the trailer and move it around. I work by myself.)





More to come.
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post #48 of 144 (permalink) Old 02-01-2013, 07:46 PM Thread Starter
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Finally found a manual transmission complete with all the pieces needed to do a conversion. (Flywheel, clutch, shifter, etc.)

It will take a week or so to get here, then it's off to the shop to be put in.

should be showing some progress soon.

-- brett
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post #49 of 144 (permalink) Old 02-02-2013, 07:43 AM
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call 619 421 3254 in san diego , he has a lot of older stuff . i would not do any mod on head for more power , your job is to preserve this jewell , not to race it .
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post #50 of 144 (permalink) Old 02-03-2013, 06:16 PM Thread Starter
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Got the old motor to run. Actually runs pretty well. Was almost tempted to take her for a spin. I called the shop. (Yes, he is open on Sundays) and discussed the next steps. It will be taken to the shop in the next couple of weeks.

In the meantime, I am going to work on the Megasquirt and wiring.

-- brett
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