Yes, you can use a cam sensor from a later model windsor (I've got one in mine just to block the dissy hole and drive the oil pump).
And yes, the injector wiring is definitely different if you're running sequential fueling.
In batch fire, there are two injector channels, so you would wire up 4 injectors per channel.
With sequential, you will run 8 separate injector wires - one to each injector.
No, it's sequential all the time. The engine knows exactly where each cylinder is in it's cycle, so it injects the fuel at the right time for each cylinder.
Yes, injection and ignition are completely separate settings. But if you've got 8 coils, why not go sequential ignition too?
Your coils spark twice as often in wasted spark (obviously).
On a high revving application it may mean that you don't have enough dwell (coil charge) time between ignition events.
But on our cranky old V8's this is generally not a problem. When you're putting all those wires though the firewall, it's not that big a deal to run 4 more.
But quite honestly, you won't notice any difference between wasted spark and sequential spark.
In many conditions you won't notice a difference between batch fire injection and sequential either.
Another question. I had a read of the regular Megasquirt 3X, and couldn't see anything in the docs about AC compressor control
Do any of you know if you can control the compressor, as in turn it on and off, with the MS3x? I now with the ms3 pro you can, and can choose to cut it out at certain rpm's/tps settings.
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