The ignition delay at idle is programmable, and you can reprogram it yourself with the ignitech software ,the ignition curve over the entire operating range will then be displayed on your computer.
I do not advise you to explore this curve elsewhere than on a test bench because at 5800 rpm ...the plane immobilized, it scares me !
We took advantage of an engine not yet installed in an airplane to test different curves, but disassembling an engine Just to test different curves on a test bench is a big job!
Testing the idle curves of an engine in place on an airplane is easier, and often on this point that many of our friends have tried but, they all returned to the curves sold by Ignitech
you can also modify the curve beyond idle, (for example at 3000 RPM), but be aware that the modules are programmed by Ignitech for a Rotax engine with the correct curve, as it exists on Ducati ignition modules sold by Rotax.
We tried different curves, and got a lower idle (1100 RPM ) with a motor that runs very well , but the gearbox doesn't like it at all !!!
We therefore returned to the original curve, the one programmed for sale by Ignitech
Attachement : a photo of our inspection hatch, cockpit side, on which the modules are placed
Jacques
