Gauging interest for PnP Megasquirt solution, MS anyone? Options

[JamesM]

For my most recent Megasquirt install i went a different route and had some mini-MS boards produced. It did not make a lot of sense to just have one PCB printed so needless to say i have more then a few empty boards laying around. Now i am trying to decide if it is worth my time and money to build these boards out and sell them as a plug n play solution for d-jet cars.

For those who don't know, mini-ms is electronically compatible with megasquirt 2.2 however the components are arranged tighter on the board and it integrates the relay board all on a form factor smaller then the original MS. My first couple of installs i used a standard megasquirt 2.2 with relay board and DB-37 cable but the mini-ms seemed like the better way to go so that is what i am playing with now.

The setup i a running right now looks almost stock, the mini-ms is enclosed completely in a gutted d-jet brain and plugs directly into the d-jet harness. the only difference from stock is a MAP line running to the brain and the 2 injector ground wires being run back as well. You have to look close to tell its not stock, however i have a feeling i could make it even more stealth by hiding the MAP sensor in an old MPS in order to get rid of the vac line to the ECU. I just have not cared enough to cut up an MPS yet.

The great part about this system is it makes troubleshooting way easier and eliminates the need for stock trigger points, MPS. ECU, decell valve, and cold start injector, though they can all be left in place if desired in order to appear stock. It also allows for cool things if you desire like closed loop operation with a wideband O2 sensor, spark control, rev limiters, traction control, and a bunch of other stuff depending on how far you want to take it. It can be tuned around just about anything, so its great if you want to change cams or go bigger on your motor and still look stock.

So is there any interest out there for this sort of thing or should i just dump the empty boards on ebay or something?

[underthetire]

The biggest PIA that I had with the MS2 install, was getting the new TPS on the old throttle body. It was difficult to get it sealed and orientated the correct way, with the shaft adapter and all. The 1.7 and 2.0 location is different as well, so that would need to be considered.

[JamesM]

The biggest PIA that I had with the MS2 install, was getting the new TPS on the old throttle body. It was difficult to get it sealed and orientated the correct way, with the shaft adapter and all. The 1.7 and 2.0 location is different as well, so that would need to be considered.

The TPS i used on my car had the same throttle shaft shape/size, i just used an old djet TPS as an adapter plate to attach it, i will have to find the part#. HOWEVER I think the aftermarket TPS will only be an option with any system i produce in order to keep a more stock appearance and easier install. Accel enrichment will use MAPdot rather then TPSdot.

[underthetire]

The biggest PIA that I had with the MS2 install, was getting the new TPS on the old throttle body. It was difficult to get it sealed and orientated the correct way, with the shaft adapter and all. The 1.7 and 2.0 location is different as well, so that would need to be considered.

The TPS i used on my car had the same throttle shaft shape/size, i just used an old djet TPS as an adapter plate to attach it, i will have to find the part#. HOWEVER I think the aftermarket TPS will only be an option with any system i produce in order to keep a more stock appearance and easier install. Accel enrichment will use MAPdot rather then TPSdot.

That would work, but I think you could get a small GM style or whatever one under the stock TPS cover and just use 3 of the 4 pins on the connector. I find the MS a little more "snappy" using the TPS set up.