Ok, its basically in the final stages right now... I literally am driving my car around on the system as we speak, just ensuring everything works properly. And actually its running really well
Honestly, I don't even think the 3D map is going to be a question. I am actually working on the 3D map as we speak... although for now it will be editable only in a large table... I will most likely add a feature where you can visually see and change a 3D wireframe map, but that is just eye candy, so for now I won't bother.
The 3D map will be RPM on the X-axis, versus initial MAF voltage on the Y-axis (more explanation on this later), versus correction percent (on the z-axis, or what you change in the table). There is also one GLOBAL VALUE which is applied to the signal no matter what. This is the standard way of viewing most fuel tables, for standalones.
The way it will work is this: An initial conversion of the GM MAF signal will be done which includes the global correction value. This means the signal will be converted from the GM MAF to the stock nissan KA signal. Then the global value is applied to this signal, so if you have 370cc SR injectors for example, 30% will be taken from this MAF voltage right away (the proper global value for 370cc injectors is about -30%). This globally corrected value is then used with the current RPM, to pull a value from the table... This value from the table is then used to make a final correction to the MAF voltage...
If you need still don't understand how it works, just let me know and I will run through an example.
Chezedik...Right now the program is MAF, and GM does not work off an analog signal like a MAP does so it will not work. Since I will add the 3D map feature, I do plan on making a speed density (i.e. MAP-based) system, however it will cost a little more (map + iat sensors are more expensive than a used GM MAF), it will require more tuning, and probably wont be available until at least a month after the MAF based system is released.
As a final note, I am looking for a tester for both the s13 and s14... - The tester needs to be interested in purchasing this system (I can't just give away the amount of time/money I have in each of these boxes). They need to have a working KA-T (just let me know the system... I dont care if its a homemade t25 or a t4 60-trim). - The tester will need to basically install it on their car, and give me lots of feedback on it: I.e. The table should be color coded, the car has a miss occationally, it takes a while for the unit to connect to my laptop, the car revs really smoothly now... whatever is on your mind. - Don't worry, the system has been tested A LOT already.. I just want to know some finer details that only other people can help out with. The system is basically plug and play, install it and the original tune should get you very close to where you want to be. - The tester will get the entire system at a discount, and if there is a hardware or software update don't worry, just send me back your unit and I will update it and send it back... I'll even save the tune for you
Murray <- Will have pics of the box and the GM MAF on the car.. May even have a stupid little video of the system from off my digital camera (so it wont have sound)... later today or sometime tomorrow.