Ignition modifications.

[pagodino]

I thought about how to get rid of the distibutor caps in our cars, last time I posted we didn't found a solution. But now perhpas I have some.

From the ELZ are going out to trigger signals to the coils, one for the right and one for the left. Usingthis signal and going onto EDIS or Bosch amplifier you can trigger them like we do with megasquirt. There is needed a second signal form a doube camshaft sensor to plase instead of the ditributor finger. This could trigger the EDIS an you have 1 pack of 4 Edis Coil (2 cyl and 2 cyl) for the left and right bank. Using this Coils the plug wires resting normaly in place. Using single Coils you can do it in the same way.

Best PAgodino

 

[Raffaelli]

I'm curious if you could come up with some sort of wiring diagram of what your idea is.

Edis does not run on a typical coil driver signal. If you are referring to just using the edis coils, you would be two coil drivers short with the Mercedes ezl.

The simplest solution that I've found is to use a ME (60-2) flexplate and run a megasquirt unit off of that. On my car I have Volkswagen/Audi coil on plugs. And even those individual coils need seperate drivers to work. But they fit perfect in the cylinder heads.

 

[JC220]

I'd sure be interested in getting rid of the caps & rotors- they don't lend themselves to the Irish climate. If not started for a couple of weeks the car can misfire very softly until fully warmed up (despite all brand new parts)

Id like to hear Dave or Klinks thoughts?

 

[gsxr]

I'd sure be interested in getting rid of the caps & rotors- they don't lend themselves to the Irish climate. If not started for a couple of weeks the car can misfire very softly until fully warmed up (despite all brand new parts)

Id like to hear Dave or Klinks thoughts?

In general... my thoughts are, the ROI is likely to be poor, if it's possible at all. I thought the EZL generates high primary voltage to the coils, like a hundred or more volts? I may be wrong there, but if it is a high-volt primary, that will make it more difficult to drive an outboard coil-pack setup controlled by the EZL. Don't forget the EZL also controls the camshaft advance system; and the transmission OL protection system, not to mention the knock sensing which can pull timing on individual cylinders.

Attempting to replace the EZL entirely would be impractical at best, if not impossible, if retaining the LH-SFI fuel ECU. At that point, just go Megasquirt or some other full aftermarket engine control, and also lose ASR, cruise control, and possibly ABS. I keep hearing how easy this is, but AFAIK only a handful of (very skilled!) people have attempted it on the M119.

Bottom line - with a stock M119 engine it's just not worth the effort. I'd only go down this road if there was high-boost forced induction, or a full-race engine with ITB's or other drastic changes to the long-block hardware. The EZL & distributors work fine for street and mild race applications once you have good components in place.

 

[5thscaleracer]

Two ways you can do this...

Keeping the distributor caps:

Micro squirt ecu
Run the factory crank sensor. The flex plate has 4 flyweights. Which can be used as pickups.
Run two CDI coils with built in igniters GM LS2 truck coils with the heat sink.

Coils will be batch fire one cool per distributor.


Now if you want to do COP or CNP (cool near plug) is to do the following.

Run a microsquirt
Run a 36-1 or 60-2 you will need to fab something up.

Run 8 LS2 truck coils with built in igniter.

Set it up as batch fire.

I would advise to keep away from EDIS although it's cheap the factory EZL is a more robust system.

But in reality the only advantage of doing this is to avoid the costly repair of buying an ezl when it fails.


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[5thscaleracer]

Btw I suggest microsquirt only because it's cheap!!! You can use any Efi ecu you like but the microsquirt is the cheapest ecu that can do this task.


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