[E4ODnut]

Hi all,
I've got a v0.4 board that I'd like to get set up to run a VW dual port 1600 air cooled engine. I will be running waste spark and paired injectors alternating so I will only need 2 injector channels and 2 ignition channels. I am assuming that the injector drivers on the board will handle the injector loads, but I expect that external drivers will be required to drive the dumb 4 post coil pack. Primary resistance on the coils is 0.8 ohms. I originally planned to modify an old MS1 V2.2 board with the MSNS Extra firmware, but it has been declared obsolete and there is no longer any support for it. I already built a custom auxiliary (relay) board for it that includes a pair of ISL9V3040P3 IGBT coil drivers. Will this be compatible with the v0.4 board?
I also have a JB Perf dual VR conditioner board that I think will just plug into the IC3 sockets, but is there a single channel VR conditioner board available? I would prefer a through hole design that I can just populate myself as my eyes are too old and dim to deal with fine pitch SM components.

[PSIG]

… I already built a custom auxiliary (relay) board for it that includes a pair of ISL9V3040P3 IGBT coil drivers. Will this be compatible with the v0.4 board?

Good to see you, Robert! Yes.

I also have a JB Perf dual VR conditioner board that I think will just plug into the IC3 sockets, but is there a single channel VR conditioner board available?

Yes and no. A plug-in module, not that I currently know-of. However, many ignition modules make great signal conditioners. Any of the VR-stype distributor modules from the 80s and up can typically be used to condition signals. I have tested the GM HEI and Bosch ICM modules to 24000 rpm for signal conditioning. Some consider this a hokey method, but it works, and it's just an option.

Most use an available module and simply don't use the second channel. A note here, that whatever you use, tie the second unused channel input either high or low, so it doesn't float and create false signals.

A couple 'scope shots of GM 4 and 7-pin modules benched at crazy rpm, being used as 1-ch signal conditioners:

GM_4-pin.jpg (57.92 KiB) Viewed 1035 times

GM_7-pin_SignalOut.jpg (50.71 KiB) Viewed 1035 times

[E4ODnut]

Thanks for the quick response. What other options are there for 2 channel conditioners, or just bare boards that will plug in?
Another question. What are people using for enclosures and connectors with the v0.4?

[PSIG]

Check the Vendor's list for what they sell and is available in today's environment.

You can build countless discrete circuits to do the job. While a bit crude and only a wave-shaping scheme, even opto circuits "work" for most applications. Or, screw any factory module inside your case lid.

Do a search for V0.4 case end plates, 3D case prints, etc. It appears most use the suggested Hammond case, and mod the end plate for whatever panel-mount connector they choose to fit.

[E4ODnut]

Got it. Thanks again.