[flightlead404]

Yes and yes. There are several channels, but the FCIS uses one optionally two. The primary one controls the lambda valve, but the optional second one in the eWUR controls control pressure. So, dropping control pressure to the min and increasing lambda to the max is what I need to measure.

Lower meaning .9 bar?

How do I calculate the amount of fuel needed at 7,000 rpm and 1.2 bar for 10:1 AFR?

Estimating using .6 BSFC and 450hp I'm swagging a shade over 17,000 cc/min. Seems high. Anyone got a better formula?

Anyway I can easily rig up a circuit to let me dial up different duty cycles for the lambda valve and eWUR injector, stick my injector lines in some graduated baby bottles and gather enough data to make some plots to determine achievable fuel flows. In fact, I might do that this weekend.

The setup we discussed, and using my FCIS to control fuel and the twin plug ignition is practically EFI anyway. Chris, don't make me go full EFI with ITB's 'cos then you'll tell me I'll need bottom end work, and transmission mods, and on and on and on....... :-D