Interest in built MS-based ECU
Turbo Mini Forums

Schrödinger's cat - so which one am I ???

Rod,

There is a Microsquirt version of the code (and ini) with each release (but it has the same source code with different compiler options) and when creating the project you specify that you're using the module. Minor differences that can be easily hidden if needed.

And hopefully the technical details in the thread can be ignored by those who aren't interested and are useful to the rest. What should be retained from this is that you'll have a sealed box which you connect to your car wiring and don't have to open or modify. And you simply connect your PC to it to tune it.

Jean

http://www.jbperf.com/

I should add that I agree with Rod that no one should expect this to be a plug and play project. There will still be some decisions to be made on the fueling components and a fair amount of tuning with the pre-requisite understanding of what everything means.

Hopefully the guide will help with those aspects. The hope is that the electronics part will be removed from the equation and can be mostly ignored as an already solved component.

Jean

http://www.jbperf.com/

OK,

Put my "techy" bits to bed, Jean has answered all of them and, in hindsight I should have done all those bits by PM.

It looks like a very good way forward for those who don't like the thought of building/soldering the electronics parts themselves but, as Jean says, it will still need an understanding of how you make it work and hopefully Paul and I can put that into the "Build Manual".

Schrödinger's cat - so which one am I ???

Hi Jean
I think this is a great idea I have been slowly collecting all the bits necessary to fuel inject the Mini Jem and need to make a decision as to ECU to use. Every time I try to make a decision I keep getting confused with all the options and changes necessary for MS. I’ve now managed to pick up a full MPI engine and all sensors which I hope will simplify the install. I also have another mini which may undergo turbo conversion which could then also be injected at a later date
Put me down for one, especially if it works with an MPI setup.

Hi Jean
I think this is a great idea I have been slowly collecting all the bits necessary to fuel inject the Mini Jem and need to make a decision as to ECU to use. Every time I try to make a decision I keep getting confused with all the options and changes necessary for MS. I’ve now managed to pick up a full MPI engine and all sensors which I hope will simplify the install. I also have another mini which may undergo turbo conversion which could then also be injected at a later date
Put me down for one, especially if it works with an MPI setup.

I think that it is worth emphasising that the Siamese Code is now part proven, at least on my car.

This is the graph that Robert produced after the recent rolling road.


Robert's setup was the closest, but he had to pull the choke out to get it richer at higher boost

Ultimately this sort of consistancy has got to produce more power and torque across the rev range.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

that .94 lump at 5000rpm was when the bleed valve primed ,so it got a boost spike ,its better on a level boost ..

but even if it was totally flat , i still dont have any idea if thats an agregate of rich on the middle cylinders andlean on the outers or what !all i have to go on is plug colour and it hasnt melted a piston yet .
i could set it up so it was right at 15 psi etc ,but then it runs rich lower down ,so i leave it at right for 10 to 12 psi and thats ample at 170 odd bhp for the rd on falkens .

id like to find a simple ecu that would just drive one inj i could put in the inlet pipe and a simple boost/ rpm based controller and kick it in at higher boost .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

http://www.jbperf.com/

I'd be interested in this

Team www.sheepspeed.com Racing

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Even though this was started a long time ago, I have finally decided to go ahead with the development of a configuration that might be of interest to some people here: http://forum.jbperf.com/viewtopic.php?f=14&t=776.

It will likely not be the solution for everyone but it will work as a fully sequential ECU for any setup be it a 5-port, a 7-port or an 8-port engine. Details about the features are in the post linked above.

This will be a very small initial run (6-8 units) done to gauge interest and as a proof of concept. If there is interest there may be further development and more units or these may be the only units produced.

Jean

http://www.jbperf.com/

As an aside, how about a new metric sized main board to replace the V3, incorporating your 4 channel driver board, dual O2 etc, as we use very little of the V3 board anyway with an industry standard plug like this

http://www.polevolt.co.uk/acatalog/info_ECU36_PCB.html

http://www.jbperf.com/

I have made significant progress on this and I have posted the details here: http://forum.jbperf.com/viewtopic.php?f=14...76&p=3503#p3503.

Jean

p.s. If this goes against the forum policy, please let me know.

http://www.jbperf.com/

I have almost everything so I should have the first running unit soon. Here are a few pictures of the board, module and enclosure. The board is not fully assembled yet and the module is there for trial fitting.







You can also have a look at them on my forum: http://forum.jbperf.com/viewtopic.php?f=14...76&p=3693#p3693

Jean

http://www.jbperf.com/

Looks neat

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Good work, Jean.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Any new info on price?

Actually, I just found out that I need to redesign the power supply. Under normal circumstances the current supply is fine but if there is more load on the Vref output, it becomes a bit marginal. So I'd rather make the change instead of telling people to strictly limit what they connect to Vref. There will still be a limit but there will be some margin.

Having said that, I need to do the new circuit design before confirming a price. But the target is still the $500-$600 range but likely the upper half. That's for the complete ECU and connectors but without wiring (contacts to crimp on your own wires will be provided).

Jean

http://www.jbperf.com/

When do you expect it to be ready?

I would say about a month or so. I need to finish the new layout (just the power supply section) and have the new boards made. Then assemble one to test and check everything is ok.

Jean

http://www.jbperf.com/

Looking very good, deffinately want one of these to finish off my car

I second that...

Well, I have the first batch of boards and those who had shown interest here either have not responded to my PMs or are not yet ready to buy a unit.

So I do have some units available at a special introductory price of $600. This is the at the upper range of what I mentioned before but once everything is added up, that leaves me with a very small margin. So if these units all sell and there is demand for more, the price will definitely go up.

Please note that this is cheaper than an assembled MS3/MS3X unit and even though it is MS2/Extra based, it has everything you need for a 4 cylinder engine sequential setup (either 5-port or 7/8-port setup) with all the MS2/Extra features built-in and the extra I/Os provided by an on-board mini IOx. In addition, it has proper automotive connectors and is in a waterproof enclosure that allows you to put the unit outside of the passenger compartment if needed.

At this time, the on-board data logging is not ready but the hardware is there so it will be available when the code for it is done. Code upgrade can easily be done by the user from a PC and I'll provide all the needed files. Also since this is a new unit, I would very much want to have as much feedback on the all the aspects of the unit so that the product can evolve and improve.

So if you have any question please post here or contact me. If you want a unit contact me by PM.

By the way, if this is not an appropriate message for this specific forum or the forum in general, please let me know.

Jean

http://www.jbperf.com/