Author Topic: Electronic Injection  (Read 3885 times)

Pawel66

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Pawel

280SL 1970 automatic 180G Silver
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W121 190SL
G-class

neelyrc

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Re: Electronic Injection
« Reply #1 on: January 09, 2021, 03:00:19 »
Pawel,

I tried the Facebook link and got a message. “Sorry, this content isn’t available right now.”
Ralph

1969 280SL, 4 Speed Manual, Dark Olive (291H), Parchment Leather (256), Dark Green Soft Top (747)
1972 Mercedes-Benz 280SEL 4.5
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Peter h

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Re: Electronic Injection
« Reply #2 on: January 09, 2021, 08:00:20 »
Here is another example.
It looks a little more professional to me.
Peter
08.68 280sl automatic white 717 G  blue MB Tex
09.68 280sl  4-speed, now 5-speed Getrag 180 G dark green MB Tex

Pawel66

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Re: Electronic Injection
« Reply #3 on: January 09, 2021, 11:32:35 »
Pawel,

I tried the Facebook link and got a message. “Sorry, this content isn’t available right now.”

Not much text in the post, I extracted the pictures for you. Post by Mikael Saksi, Mercedes-Benz SL (W113) Pagoda group. He bought the car like that, cannot provide info on who modified it.
« Last Edit: January 09, 2021, 11:38:00 by Pawel66 »
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

Shvegel

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Re: Electronic Injection
« Reply #4 on: January 09, 2021, 22:34:54 »
It can be done. Just not sure why? 

hauser

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Re: Electronic Injection
« Reply #5 on: January 10, 2021, 05:58:21 »
I have spoke with a Pagoda owner that will remove the factory fuel injection and replacing it with a  Megasquirt system.

Ferrolanoman

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Re: Electronic Injection
« Reply #6 on: January 10, 2021, 15:29:09 »
Frankly, if I were to get rid of the original fuel injection system with all of its lines, pumps, huge intake manifold and myriad linkages, I would opt for a more elegant, simple and contemporary induction system to the factory's and opt for a triple Weber DCOE carburetor set-up. Remember that the racing version of its immediate ancestor, the revered and very successful 300SL's all had carburetors--not FI. Likewise the 190SL. In fact, if anyone here has done it or knows of a source for such a set up, I'm a buyer. Not saying I would do it to my car, but I would be intrigued by the possibility and would like to experiment with it.

Pawel66

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Re: Electronic Injection
« Reply #7 on: January 10, 2021, 15:40:16 »
It can be done. Just not sure why?

I think one may consider it at some stage given increasing costs and difficulties related to running of the Pagoda's MFI injection systems.
Pawel

280SL 1970 automatic 180G Silver
W128 220SE
W121 190SL
G-class

Fonzi

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Re: Electronic Injection
« Reply #8 on: April 03, 2021, 13:08:01 »
Frankly, if I were to get rid of the original fuel injection system with all of its lines, pumps, huge intake manifold and myriad linkages, I would opt for a more elegant, simple and contemporary induction system to the factory's and opt for a triple Weber DCOE carburetor set-up. Remember that the racing version of its immediate ancestor, the revered and very successful 300SL's all had carburetors--not FI. Likewise the 190SL. In fact, if anyone here has done it or knows of a source for such a set up, I'm a buyer. Not saying I would do it to my car, but I would be intrigued by the possibility and would like to experiment with it.


I thought the 300sl’s had direct injection, while our MFI cars have indirect injection. 

Which 300sl cars had carbs? 

(I understand the 190sl cars had carbs.)

Ferrolanoman

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Re: Electronic Injection
« Reply #9 on: April 03, 2021, 13:22:49 »
All of the factory racing 300SL's were carbureted, including the Carrera Panamericana winner. It was only when Mercedes, at Max Hoffman's behest, decided to make  1,400 for sale to the public that carburetors were changed to fuel injection.

Benz280

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Re: Electronic Injection
« Reply #10 on: April 03, 2021, 14:39:33 »
The question will be - how many 113's remain ? how many are original ? 
1971 280SL 4 Speed
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Cees Klumper

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Re: Electronic Injection
« Reply #11 on: April 03, 2021, 17:19:27 »
On the Lancia forums there is a guy, an engineer, who has been working on converting his 1970 or so Fulvia to electronic injection. If you see all the things he is going through to make that happen, I lost my appetite on page 2 of his now 13 page odyssey, and he's not done yet. Started in June 2019 and he's a capable wrench. Is it easier on our Pagodas?
Cees Klumper
1969 Mercedes 280 SL automatic
1968 Ford Mustang 302 V8
1961 Alfa Romeo Giulietta Sprint Coupe 1600
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MikeSimon

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Re: Electronic Injection
« Reply #12 on: April 03, 2021, 18:07:54 »
Cees, I will agree with you.
I am a long-time member of the Honda CBX Owner's Association. This bike is a late 70s/early 80s motorcycle with an in-line six and six carburetors.
For a long time, there have been discussions among members to convert the bike to FI.
Several attempts have been made. Some more, some less successful. The major challenge is the control mapping and the proper air flow metering. Also, which injectors to select.
The consensus is, if you need to do it, because you think it can be done, do it.
It will not improve rideability in most cases and it will not increase the value of a vintage classic.
On the other end of the spectrum, Kawasaki had a 6-Cylinder, the KZ1300. From 1979 through 1983 it was carbureted (3 double barrels) and in 1984, it was changed to the "Voyager" and turned FI. Many important parts are no longer available and hard to service. Consequently, owners go back and convert to carbs.
I realize, our cars are FI and changing to a more modern, ECU controlled FI should be relatively easy, but I am afraid it is not.
1970/71 280SL Automatic
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114015

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Re: Electronic Injection
« Reply #13 on: April 05, 2021, 11:24:34 »

If you want to go and change the existing MFI with an electronic fuel injection,
go get the system from the 250 CE M114: D-Jetronic.

Car has no more power than a 250 SL and acceleration and fuel consumption are also nowhere better.

... and losing (sales) value ... at least for better to excellent cars.

Go and get it if you like....,
me not.

IMHO,
Achim

Achim
(Germany)

franjo_66

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Re: Electronic Injection
« Reply #14 on: April 06, 2021, 01:01:06 »
There used to be a really good & straight forward EFI conversion kit offered by mfiwerks.com

It was pitched to the Porsche 911 models that had the same MFI Bosch set up as our cars. From memory it came with all the hoses & fittings etc to plug straight onto the manifold, injector ports etc

Regards
Frank
Franjo

1965 230SL Black/Auto/RHD
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Ferrolanoman

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Re: Electronic Injection
« Reply #15 on: April 06, 2021, 13:29:10 »
I don't understand, why go from one type of fuel injection to another when almost no one here--save for Dan Caron or Joe Alexander--can fix this type of induction system? I can see changing the mechanical fi to carburetion, which most of us can tinker with without resorting to manuals or professional help, but why add to the complexity of the factory original fi with electronic management systems? I don't get it.