My father and I are doing beginning a project together to make a fully programable engine managment system by this summer (ign, fuel, etc.). He's made controllers for 4-cyl, 2-cyl, etc. but nothing for a rotary. My dad plans to get the PC board designed by summer time (as this is a side project) and I need to do all the programming. I'll be instaling it on my car first to test the system out but he plans to sell a few for fun. He's estimating that it'll cost $400 for the system. It'll be a limited production but it'll be a lot cheaper than any other system out there. He runs Control Systems Inc. http://electroniccontrol.com. There's not much to look at but for credibility purposes. I'll post updates on the project as it progresses.



I posted this in the performance section but decided to post here to let all the 2nd gen owners know of this.

I think a "black box" to convert the flapper style MAF to a hot wire type, such as the Ford ones would be a great idea too.

Nice let us know how it tursn out.

Get it working and I'll buy one for sure!



Good luck.

will u be able to take off the afm please keep us updated ?

datalogging?

good luck... i hope you dont blow anything up in the process

No there will not be any MAF any more. I was discussing this with my dad a little more and we talked about maybe making a drive by wire system for the throttle. I think that's a little too elaborate though. I'll look into the MAF to hot wire type thing.

Oh and if you have a laptop and the program for it than you can record everything.

sounds interesting depending on usability and features id be all for it, especially if it saves money.



kevin.

Are you going to be able to plug a laptop computer into it to change the parameters? What are you programming, the software for the laptop or the software in the ecu? What languages are you using?



Just curious.

I am going to program both. I'm learning assembly language right now for the ECU. You'll be able to plug a laptop up to it and you use that to tune the ECU. My dad has a program already for the laptop but I may make a new one for the kicks. You'll be able to adjust everything on the ECU with the laptop.

How much programming have you done in the past? Assembly is a really hard language to learn, let alone make useful. I wonder how many lines would be required for a project like this. Either way, if its possible, I would write as much as I could in C and just link it to the assembly code.



Please post the code (or at least some of it), it would be intersting and others could help you.

Assembly is actually one of the simplest languages and easiest to learn, it's just tedious to use. I learned assembly on x86 back around high school days and wrote a number of complex programs in the language. I now use C for most things but anything where size and speed is of concern, I go back to assembly. Most people are afraid of assembly because they don't see anything they can relate to when they read it / first start learning it.



Rob, what CPU is being used in the ECU? I'm guessing that you will be using a motorola, any more details?



You might also want to look into megasquirt, it would be less work to just adapt what they've done to your needs, they already have open software developed and tested out there along with the hardware. But if this is purely for the fun of it, good luck https://www.nopistons.com/forums/pub...IR#>/smile.png

Ever heard of the MegaSquirt?

Of course the syntax of assembly is easy to learn, but I consider actually being able to implement the language a large part of the learning curve. Many people literally aren't able to think in a way that is conducive to programming. And as far as being simple, sure the basic idea is simple; "All you have to do is call this doohickey while this number is in this little cubbyhole and you're done". But the reality is that assembly is complicated to use and he will probably spend WAY more time planning out the program than actually coding it.



BTW, what brand of CPU do the FC's use stock?