24 sparkplugs, what should i do?

[Kartis]

Got a mercedes v12 with twin plugs.
Tried to get this to work with four 2x3 Bosch coilpacks (Webshop) and four ignition controle modules (0 227 100 203)
So 1 igbt output controlls 2 modules, 500ohm pullup to +12v, Invert driver output enabled.
During cranking i get very long dwell, 2sec and this this blows the fuse, or the ignition module
Looking for alternative options. Can i put dual igbt´s in a external box and drive these with logic outputs?
Since this engine requires six outputs in wasted spark i can´t use stepper.

[MWfire]

you can't drive 2 coil with one igbt. One coil=1 igbt. But you can drive more than one igbt with one vems chanell. But you need to add resistors for all external igbt and short resistor in vems box.

[Kartis]

Yes that was my thought, how should i size the resistors? If i remember correctly i got 510ohm in the ecu now,

[MWfire]

510 should be ok.