In reply to alfadriver :
I have never worked with anything with injectors small enough to do that. The injector modeling in MS2 is relatively crude, and while it can calculate pulsewidth to the hundredth, it can't do small pulsewidth skew corrections. If you could even get that data, currently only MS3 variants have the computing power to do it, and I think only Injector Dynamics can provide data you can directly plug in to an MS3 based system.
Generally speaking you want idle/cruise pulsewidths over 2ms for best control.
I know about the 2ms part... but not about the calculation part for MS2.
So, michael, start with just 2 injections and two banks, and start collecting data. And maybe turn on transient compensation - which I have no idea what it's called for MS2. Probably accelerator pump or something like that.
In reply to alfadriver :
Im lost already again. You went way above my head there.
2 injections and two banks is what i THINK i have going on now. Right?
But the rest.... simplify?
There are some boards to help improve injector and coil driving for MS1/2 units:
http://jbperf.com/index.html
This one can allow for semi-sequential injection on 6 and 8 cylinder engines:
http://jbperf.com/quad_ign_inj/index.html
In reply to Dusterbd13-michael :
Per your screenshot, you are firing all eight injectors simultaneously, once every revolution (twice per cycle).
Which, really, given the hardware you have, is going to be the best you can do.
You can invest in more hardware and tuning headaches, or add a bit of fuel to Band-Aid it and see if it gets better.
I hate to say it (because some see it as heresy) but if you are using a carb type manifold, and you don't have sequential injection, you're better off with a TBI type setup.
Dusterbd13-michael said:
In reply to alfadriver :
Im lost already again. You went way above my head there.
2 injections and two banks is what i THINK i have going on now. Right?
But the rest.... simplify?
What are the choices for "Injector Staging"?
The right answer for the injector settings is 2 squirts, alternating. Unless you have an odd cyl count.
Also anyone who recommends tbi of any kind over port, gtfo with that.
