i saw a couple months ago that nology make a coilpack kits for the d-series but now i cant find it on there website, or any where else for that matter. any one know where i can find some? they not have to be nology, is there any other companies.
VW/Audi 1.8T 20V coils fit pretty nicely, when you remove the rubber seal and cut the plastic finger holding the rubber. But you need also to shorten the spark plug tubes atleast in Z6 head by ~3mm.
I already got one coil and made those modifications, still considering the whole ignition system for my engine.. Probably I'll stick with stock D15 dizzy for a while, because it works well, converting to Coil-On-Plug needs cam position sensor addition which is a bit tricky to do.
IIRC BigTuna has Electromotive TEC2 standalone, and he is not using individual coils. He has wasted spark (two coils). Basicly, you need a standalone for individual coils. But if you're good on electronics, designing small and simple multiplexer for ECU igniter signal and utilizing bottom (sensors) of stock dizzy would be a pretty straightforward job. It would'n be too hard to build four power stages for CBR coils, but active ones like VAG 1.8T coils would make it a lot more simpler. Then you still have to consider, how to control coil dwell time. I dunno how Honda is arranged this, does ECU take care of it(and is dwell adjustable, via CROME/TurboEdit or some other?) or igniter module. 1.8ms is proper dwell for VAG coils, I'm running ~3ms with stock coil now.