I had an idea for running sequential injection along with injector staging on a rotary. Think this will work? Have the front and rear rotors on seperate injector channels, but have the secondaries powered through a relay, controlled by the nitrous trigger on error's daughterboard. Set the trigger to power the relay feeding the secondary injectors at a set rpm, and use the nitrous map to change the fuel mapping to account for the extra injectors coming online.

Thoughts?

Im planning on running a pport soon, and I want to get it to run as well as possible at idle and cruise, and accurate low load mixtures will certainly help.

 

You can run PWM through a relay?

 

The power side of the injectors is constant 12v. The current across the injectors(and the firing in general) is controlled by grounding the injectors through the ecu. I dont think the fluctuating current would have any effect on the relay on the power side, its either open or closed circuit. The switching side of the relay is isolated.

 

I thought you were describing an external circuit. As in using an output from error*s board to a relay to the injectors (as in his board couldn't handle large current).

My bad.

 

That's going to be rough to tune... and if you're running low impedance injectors or injectors that are a different size/make from the primaries, you won't be able to independently tune opening time, etc... for the secondaries.

IT could work, but MS3 should be out at the end of the summer or early fall, and will do it right with trim per-rotor (James and I will be coding all summer in order to make ms3 happen).

Ken

 

I actually plan on using identical injectors, and either high impedence or this to drive low impedence injectors.

 

i don´t want to be a copy, but i already have similar idea.

I´m going to use 8 injectors 12ohm all same size, 4 on the top and the other 4 after the butterfly´s.
my idea was to fire 1 top and 1 down injector for each rotor at different times, the far injector fire first and the close one fire next, after some point 3500rpm +-) one relay close giving power to make the other 4 injectors work at same time.

Than someone give the idea that sequential may not work on rotary the same way as in OTTO engines

But i´m still working on the table, and first i need to install it on car and make it run