I posted this info in the electrical section, as i thought it might be of interest/use to others that were not interested in our EFI/Ignition project. I'll post it here as well as it is related to the project.
There are two VR sensors, each with TWO individual pickups. Each VR sensor is mounted 70deg from the other. There are two triggers mounted on the flywheel, each 180deg from one another and each is physically off-set from the other. One rides on the inside edge of the flywheel and the other rides on the outer edge.
The two pickups on each sensor are offset from each other,one in-line with the inner flywheel trigger, and the other in-line with the outer flywheel trigger.
The inside pickup on the front sensor fires cyl #1
The outside pickup on the front sensor fires cyl #3
The inside pickup on the rear sensor fires cyl #2
The outside pickup on the rear sensor fires cyl #4
So, heres how the Vmax fires:
*Cyl #1 fires, then the crank rotates 70deg
Cyl #2 fires, then the crank rotates 110deg
*Cyl #3 fires, then the crank rotates 70deg
Cyl #4 fires, then the crank rotates 110deg
Cyl #1 fires, then the crank rotates 70deg
*Cyl #2 fires, then the crank rotates 110deg
Cyl #3 fires, then the crank rotates 70deg
*Cyl #4 fires, then the crank rotates 110deg
*Cyl #1 fires(back at the start
The "*" indicate when that cyl is TDC on its compression stroke(power stroke).
So, this is a true wasted spark arrangement, firing each cyl every 360 deg. Just waaaay more complicated than what i'm used to seeing(or have ever seen for that matter!)
You can see that cyl #1 fires(power stroke), then the crank rotates 180deg, then cyl #3 fires(P/S), then the crank rotates 250deg, then cyl #2 fires(P/S), then the crank rotates 180deg, then cyl #4 fires(P/S) and finally rotates 110 deg to start over again with cyl #1(P/S), giving the V-max its 1-3-2-4 firing order. There is just ALOT more going on with the pickups/coils than one would think!
I don't think the stk VR sensors will be of any use on the project. I'm still working on it though, and have not ruled them out. The problem stems from it having 4 independant triggers where the Megasquirt uses one, and the Microsquirt(and some versions of the MegasquirtII) can use two. We can't just tie two together for a wasted spark as each cyl has its own trigger WITH WASTED SPARK. This would fire the coils every 180deg! Kind of a Wasted/Wasted spark...