myeates
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| posted on 2/2/09 at 01:46 PM |
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Ford ESC module (EDIS with vacuum connection)
hi
i have somehow got hold of one of fords ESC modules that has the vacuum conection and the red cover, so how well will my engine run with this in place
of the
distributor at least till i can afford a megasquirt.
my understanding is this will run on its own without the need for a standalone ecu but how well, it would be going on a 1.3 x-flow engine
is it worth putting on will it run well.
thanks
Mark
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cd.thomson
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| posted on 2/2/09 at 02:33 PM |
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I know that EDIS runs at 10 degrees advance which is fine for idle, but quite literally a limp home mode for actual driving.
I havent read up on the ESC module, would you happen to know if it uses the engine vacuum to set the advance? This will be far less responsive than a
SAW/PIP signal and I wonder if they are designed to run on alternative engines?
HOWEVER if it does work then itll be far better than the limp home mode on the EDIS which has no engine input. So there is some hope!
Craig
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myeates
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| posted on 2/2/09 at 02:45 PM |
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the vacuum connection is there to set the advance, they are supposed to be able to run on there own but whether its worth it i dont know. mind you it
wouldnt take a lot to be better than the dizzy
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cd.thomson
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| posted on 2/2/09 at 03:41 PM |
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now I may be being a bit dim here but how would you "tune" the ESC module to your particular engine? I would assume your engine is not
running the same vacuum as the engine that it came off for a start. As any remapper/ecu specialist will know every engine has its own specific
requirements for advance timings so I'm certain the ESC would be built to run a particular setup.
I may well be wrong, but the lack of information on aftermarket use of electronic spark modules suggests there is a reason not to use it. Also if it
was that easy to ditch the dizzy then the electronic ignition specialists would be out of a job!
Craig
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myeates
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| posted on 2/2/09 at 03:55 PM |
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you have a very good point i think i will just wait til i can afford a megasquirt or jolt. there is very little information on them so best avoid now
im thinking about it
thanks
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will121
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| posted on 2/2/09 at 05:42 PM |
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i think the Ford ECS module was used on the Mk3 fiesta on the engine simular to the earlier xflow, so in some ways see no reason why it wont work in
principal, for the limited work involved may be worth a try?
[Edited on 2/2/09 by will121]
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MikeRJ
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| posted on 2/2/09 at 05:56 PM |
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quote:
Originally posted by cd.thomson
now I may be being a bit dim here but how would you "tune" the ESC module to your particular engine?
You can not. The ESC module has a built in ignition map for a specific engine.
It will be good enough to get the engine running, but the map will likely not be optimal for any engine other than that ones it's designed for.
It still uses the 36-1 trigger wheel, so you can advance/retard the overall timing by moving the sensor in relation to the trigger wheel.
[Edited on 2/2/09 by MikeRJ]
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big_wasa
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| posted on 2/2/09 at 07:01 PM |
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You would need to add the trigger wheel to you x-flow.
I have run all sorts of engines on these and whilst not "optimal" it does a vey good job if running a single carb.
They are sort after by the mondeo rod bager racers as they run zetec's with 32/36 dgv webers on and use this for the ignition.
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AdrianH
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| posted on 2/2/09 at 07:25 PM |
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Hope I can pop in here with a question, I think it got answered by MikeRJ, but here goes.
I have a 1.8 CVH engine and want to leave for the time being with the standard carb and ignition system
It is, according to the book, a ESC Hybrid system as being described here I think, it has the vacuum input on the module. I take it a ESC is
completely different to a EDIS and can not later be used with a Megajolt or Megasquirt system.
It is from a non cat 1991 Sierra, I guess the fuel mixture could be changed slightly with a jet setting to cope with an after market air filter and
any changes to the exhaust?
Am I making the correct assumptions here?
Adrian
[Edited on 2-2-09 by AdrianH]Image deleted by owner
Why do I have to make the tools to finish the job? More time then money.
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MikeRJ
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| posted on 2/2/09 at 11:00 PM |
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quote:
Originally posted by AdrianH
It is, according to the book, a ESC Hybrid system as being described here I think, it has the vacuum input on the module. I take it a ESC is
completely different to a EDIS and can not later be used with a Megajolt or Megasquirt system.
Yes, the ESC is a complete self contained mapped ignition system, used in conjunction with a carb on some production Fords. The map can not be
changed, and it can not be controlled by Megasquirt (though it could be run along side MS as an independant ignition system).
The EDIS is a bit like a stripped down ESC, it has the trigger wheel interface, and enough intelligence to perform the time/angle calculations
required, but has no ignition map or MAP sensor included. Instead, the main ECU (either the Ford one or Megasquirt) tells the EDIS what spark timing
it wants using the SAW pulse (Spark Advance Word), and the EDIS does the rest.
The normal ESC module is different the one you have posted, it looks like an EDIS but has a red cover like the one
here.
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AdrianH
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| posted on 2/2/09 at 11:19 PM |
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Thanks Mike.
It will hopefully do me for the time being, until I get it on the road at least.
Adrian
Why do I have to make the tools to finish the job? More time then money.
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