I am trying to help a best friend to start his 13B rotary fitted with Electromotive TEC II (not Tec 3). He is looking for some help here to get a base map


Since Tec 2.1.2 does not have the Rotary Wizard like the easy Tec 3,
we had a hard time making the base map. According to Electromotive, He has to choose 4 strokes, 2 cyl & 4 injectors (don't know if this is right).
His injector is a Mustang 35lbs injector. He is running throttle body (like the one sell by Racing beat).
The car idles ok but when you give more gas, the engine bog down. Can someone kindly help us solve that acceleration problem? We don't know what area we have to do some changes. Other people said go to stage injector table and add the value but stage injector table is only in tec 3 no stage injector table in the tec 2

Also he has 4 injectors. He wired them to run in 4 injectors but only 2 wires is working. He then put two injectors in one
wire and two injectors in other wire. I don't know much about Rotary and I am completely stupid with this setup.
I can't help him. I think once his acceleration problem solved, I will be able to help him in VE, EGO and advance timing table.

Appreciate any map that you can give us to start.

 

These motors have 2 different kinds of injectors: Primary and Secondary. The Secondary injectors are activated via a code in the ECU at ~3800 RPM stock. Wiring them together (I'm not sure how he did it) could definitley cause fueling problems.

I'm not sure on how the Tec 2 works, so i don't know the best way to set up activating the secondary injectors. I guess you will have to call electromotive again and explain the setup more clearly.

 

Ahhh! probably the reason why my friend complaining that only two injectors are working even he wired 4 of them. The secondary is not working.

You said, the stock ECU has a code to activate the secondary injectors at 3,800rpm. In Electromotive tec 2, there is a table called GPO (General purpose output) which you can activate things like: NOS, shift light, torque converter control, auxiliary fuel pump, fan thermo control and many more, perhaps we can use this table, set the rpm and give voltage to the secondary injector.

Maybe he can buy a trigger rpm (small unit) and activate the secondary.

 

You'll have much better luck posting this in the Engine Management Forum

https://www.rx7club.com/forumdisplay.php?f=37

There is no specific section for the Electromotive EMS, but there are some people around that run them and they should be able to help you out.