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  #31  
Old 10-07-2008, 09:35 AM
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Quote:
Originally Posted by Bluefang View Post
By the way, I have MSII v3 running fuel only on my '74 450SLC atm,
WE NEED PICS, PLEASE!

:-) neil
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  #32  
Old 10-08-2008, 04:03 AM
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Look here...http://ozbenz.net/viewtopic.php?f=13&t=5491 has some pics in it, taken with phone and shrunk so not that good.

Shows clearly what i mean about removing the plastic on the injectors to make a barb fitting so u can fit it to the normal fuel rails. And the TPS is just a small Potentiometer that i hooked up.

By the way, anyone know how to get the 3speed slugomatic to shift at like 5.5-6k in first, it shifts 2nd-3rd at 5.5 atm, BUT 1st-2nd is only shifting at 4k which is a pain in the ass cause it really starts to pull then.
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  #33  
Old 10-08-2008, 04:22 AM
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For another take on fitting a TPS, take a look around the Flickr account linked in my signature.
I just posted a few pics of the adapter plate I just worked out to fit an easily available Ford TPS to one of our throttle bodies. 1/8" aluminum plate, ~1/2" brass rod as a pivot shaft, and a few screws to fasten it all together. Cost me under $10 in material, and uses an easily available sensor that retails ~$50, rather than the no longer available MB sensor that was $90.
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Testing the cheap Mercedes axiom, one bolt at a time...
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  #34  
Old 10-08-2008, 04:56 AM
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Mine cost me all of $15au all up including the petrol to take it to the engineering shop to get the hole drilled in my butterfly shaft with gromit screw to attach it
Here is the MSQ file i am currently using for my Iron block M117
Attached Files
File Type: zip megasquirt200810081853.zip (4.7 KB, 100 views)
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  #35  
Old 10-09-2008, 07:00 AM
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Question

Quote:
Originally Posted by Bluefang View Post
Look here...http://ozbenz.net/viewtopic.php?f=13&t=5491 has some pics in it, taken with phone and shrunk so not that good.

Shows clearly what i mean about removing the plastic on the injectors to make a barb fitting so u can fit it to the normal fuel rails. And the TPS is just a small Potentiometer that i hooked up.

By the way, anyone know how to get the 3speed slugomatic to shift at like 5.5-6k in first, it shifts 2nd-3rd at 5.5 atm, BUT 1st-2nd is only shifting at 4k which is a pain in the ass cause it really starts to pull then.
Hi Bluefang
I am soon to do a MS on my 450SL (1973 D-Jet) So I am very interested in how your trigger-wheel conversion on a fan pulley works out.

I have made up a 'potentiometer' using a Volvo TPS bolted onto a DJet TPS backing plate, its quite a tidy conversion but I dont know how it will work yet.

Did you use an O2 sensor (W or N Band) where did you position it in the exhaust?

Was there a particular reason why you didnt use the DJet injectors?

Peter in Melbourne
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  #36  
Old 10-09-2008, 09:15 PM
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O2 sensor is the standard megasquirt recommended one LC1-wideband and its placed just before the last bend on the down pipe(about 2ft from the start of the manifold, just before the pipe becomes flat to the underside of the body, Get the bung welded into the exhaust before u start pulling the car apart).
I used the Ford injectors because i knew they would fit perfectly, plus they were easy to get and cheap if i got second hand ones.

I would look at what u want to do with your engine before u decide on the injector size u get tho. I went for ones capable of 300-350 HP(19lb/h injector). But i am considering one or all of..... installing a supercharger, boosting the compression and getting new cams, bigger ceramic coated exhaust, which will put the car over 300hp pretty easily meaning i should have gotten bigger injectors. But need money first lol

Last edited by Bluefang; 10-10-2008 at 01:10 AM.
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  #37  
Old 10-10-2008, 01:47 AM
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I'm in the same boat, using used Ford injectors. 19lb/ph, pulled from a late model Crown Victoria, set me back $28 for the set, after shipping. (Someone didn't know what the heck they had, and sold cheaply on ebay.)

LC-1 wideband makes for easy tuning, as well.

I'm definitely eyeing the guys with the different boost sources. I'm a firm believer in the power of boost, and our convoluted intake plumbing just begs for some to overcome the restrictions.
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  #38  
Old 10-11-2008, 02:59 AM
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http://ozbenz.net/viewtopic.php?f=13&t=5470 is your engine with boost

U might be able to turbo yours tho, i dont know how much room u have in the engine bay of a SEC, but twin turbo, should be interesting
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  #39  
Old 10-12-2008, 12:08 AM
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This is the picture that prompted me thinking of a pair of turbos, but I'm still pondering how to keep from melting the paint off of the hood!

Admittedly, this is an engine from a 500e, not a 5L m117 engine!
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EFI for m117?-mb500e_05%5B1%5D-small-.jpg  
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  #40  
Old 10-12-2008, 12:42 AM
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I don't know how cheap MS is but I run a Tec3r and the thing is incredible.
Set up on the tuning is so easy. The tuning wizard takes your injector size and engine size and # of cyl. and some other data and fills in your basic tables for you. It starts and runs. I actually drove my car to work the next day without any additional tuning. Then you get your o2 set up and set your air fuel ratio table and the Tec will fill in the table for you. Your basic table minus the areas you can not drive in under load are filled in within a couple of trips to work.
The only thing bad I have to say about it is that it is very sensitive about ac interference from the starter and alternator and electric fans.
I had to install a resistor in my crank sensor wire to ground out the starter noise. Other than that it works perfectly.
It also uses waste spark. Which as others have testified makes plenty of power and can rev very high.
I would also suggest checking out the new Tec gt.
I have not used it yet but I have a friend that is about too.
I was also going to suggest for a fuel rail if you have not done this already to look at the rail from the m119. I am pretty sure that it will fit. I laid it over the top once and looked perfect. I am also looking in to having a flywheel made for my m104 that has the 60-2 teeth. I was going to use the flywheel from the m113 which fits on the car and is timed right but the torque converter will not bolt up and a v8 torque converter will not fit in my trans housing.
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  #41  
Old 10-12-2008, 12:54 AM
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Just browsed around my machine and here are the 117 (w/ 1 119...) TT pictures that I have.
http://picasaweb.google.com/AMGEast/560TwinTurbo#
I'm looking @ the Wolf EMS..although I'm curious how much the Tec3 is going for..they look to be very similar on paper.

Josh, we're figuring out pricing on plumbing, turbos etc now for about a 450-550hp 5.6L..I'll let you know as it comes together


Jonathan
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  #42  
Old 10-12-2008, 10:59 AM
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Quote:
Originally Posted by hey_allen View Post
This is the picture that prompted me thinking of a pair of turbos, but I'm still pondering how to keep from melting the paint off of the hood!

Admittedly, this is an engine from a 500e, not a 5L m117 engine!
You can have Jet-Hot apply the coating to the outside of the turbo compressor and turbine housings. I've seen it done before.
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  #43  
Old 10-12-2008, 11:58 AM
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I've been doing some reading and I'm dropping jethot and going w/ Swain Tech ceramic coating on anything exhaust related..

ST seems to put more importance on performance when compared to JetHot who seems to push cosmetics quite heavily.

Jonathan
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Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
Follow Us on Facebook!
Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta

Last edited by jhodg5ck; 10-12-2008 at 04:53 PM.
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  #44  
Old 10-12-2008, 04:09 PM
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Jonathan your post is confusing. You need to switch the order in your second sentence if you are going to use the word respectively.

I've done many things with Jet-Hot over the years and I've had good luck. Also they were local to me, so that cuts down on shipping expenses.
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  #45  
Old 10-12-2008, 04:30 PM
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Quote:
Originally Posted by jhodg5ck View Post
I've been doing some reading and I'm dropping jethot and going w/ Swain Tech ceramic coating on anything exhaust related.. They seem to stress performance over cosmetics in chatting with them and Jet Hot respectively.

Jonathan
+1 on Swain Tech.

I have used them on my RX7 Twin-Turbo rotary down-pipe, and it does wonders.

IMHO, much more durable than Jet-Hot.

:-) neil
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