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Mats

you can contact beanbooger from http://home.earthlink.net/~beanbooger/b ... gineering/ he can do some custom wires for you.

regards

OK question of a MS noob,
why can't you use the 60-2 wheel of a motronic, should be a straight fit on an old crank?

enzo: tnx, I'll have a look.

Maurizio: Because the EDIS use a 36-1 wheel...

Another change in the build. Carbs will cost me too much money and is no longer required in the rules = full injection with Megasquirt + EDIS.
Easier to tune (for me) and a fun project. Need to modify the MS board for EDIS and I'm thinking maybe I should modify it for external MAP while I'm at it. It depend on which type of TB('s) I'll be using.

Now, has anyone done any testing with the EDIS and different VR Crank trigger sensors? Is it very picky? I'm thinking about using a Motronic 75 TS VR sensor and making my own trigger wheel and it would be nice if someone knew if it will work or even if it won't work (that would save me some time).

Mats

do you have bought the EDIS stuff? with the extra code you can run the motronic wheel and use 2 double coil-packs and run wasted-spark.

regards
enzo

I got a complete EDIS setup but I also have a wasted spark coil from a 155 Q4 laying around. I like the robustness of the EDIS but at the same time it will probably be easier to just use the 60-2 Motronic setup as-is and wire in that coil. Only problem is that I will need some ignition modules then I guess? Preferrably smart ones so I don't have to care about dwell and such.

Is that correct?

Mats wrote:Only problem is that I will need some ignition modules then I guess? Preferrably smart ones so I don't have to care about dwell and such.

then use edis
in the V3 board one ignition module is build-in...

Yes - I'm planning on using EDIS with a V3 board too - just need to figure out how to mount the trigger wheel and pickup sensor, the rest looks very easy with Megasquirt.

You can buy complete (used) 6 cylinder EDIS 'kits' for < $90 on Ebay.

Cheers,
Michael

The more I think about the 60-2 wheel the better it sounds. But I didn't know you could actually get two ignition outputs from the MS, but that is possible?

Mats

with the latest extra code you have up to 6 ignition outputs...but you will loose other outputs.

one ignition coil driver (VB921ZVFI) is build-in if you need more than one you have to buy more VB921ZVFI (5$)

I already have a 2.2 here so I will have to use external ignition modules, not really a problem though.
Ok, so if I would want to I could use the f-idle and one of the LEDs as outputs to the coil? Sounds easy enough.
If I use smart coils I guess I would only have to worry about feed and trigger?

Sounds like a plan.

you can't use directly a VR sensor with the V2.2 board...
you can set the LED17 and LED19 to spark outputs without to loose the fidle...

I can't use a VR sensor directly? Are you joking? That's the whole point with the 60-2 decoding...

F-idle, who needs it. Not on a race engine anyway.

nope....you can use a hall-sensor only...with the v3 board you can use it directly....(you have the build a litle circuit)
if you use edis, the vr sensor is connected to the edis module, not to ms, so you don't have this problem

Matts, Enzo,

I'm reading the VR sensor within an old GTV6 distributor directly into the version 2.2 board using the "signal goes low" trigger circuit and a 270ohm resitor in R10. fyi if I left R10 at a higher value it worked perfectly on the bench but wouldn't register below 400rpm, so the car would not start as it cranks slower than that !

This signal feeds MS and I use the "fidle" output to drive an active ignitor and coil sourced from a scrap VW.

There's a photo of the distributor internals on this thread :
http://www.alfagtv6.com/bb/viewtopic.php?t=907

Works a treat, drives very smoothly and gave decent HP & torque on the dyno.
Steve