Pagoda SL Group

W113 Pagoda SL Group => Research & Development => Topic started by: JamesL on March 13, 2008, 05:24:39

Title: ECU
Post by: JamesL on March 13, 2008, 05:24:39

Just a thought, and really chewing the fat more than anything, but...

It's widely recognised that one of the reasons for increased engine efficiency has been the ECU.

What would it take to fit one to a W113? I have no idea how they work so...

Title: Re: ECU
Post by: hands_aus on March 13, 2008, 07:11:24

get rid of the mechanical injection pump
add lots of temperature sensors, valves, air hoses, electronic fuel metering, injectors, etc

Bob Smith (Brisbane,Australia)
RHD,1967 early 250 SL, auto

Title: Re: ECU
Post by: cth350 on March 13, 2008, 19:13:02

I've always considered the mounting point of the  fuel distributor to be a great place to read engine timing, especially since you would close the hole anyway.  

Rigging up a megasquirt EFI system should be straight forward. The fun part will be mounting suitable injectors without reboring the holes in the head.

I have seem somebody go to the trouble to do this on a 6.9 (with CIS), but he bored larger holes in the heads for bigger injectors (he also did it w/o removing the heads from the motor or the motor from the car by constructing a special jig for the work.

-CTH

Title: Re: ECU
Post by: psmith on March 13, 2008, 21:23:29

What a coincidence, I just contacted Karl Middelhauve of Mercedes Benz Grand 600 Restoration http://www.mbgrand600.com/  he has converted the big V8's and straight 6 to EFI.  Here's what he said:

"The advantages are obvious, better start, constant idle at set RPM in the computer, regardless of engine load by transmission and aircondition, CO less than 1%, fuel savings at least 15% and that will be a factor
to consider when we will have 4-5 dollar gas prices."


Pete S.