Been down in Tassie for 2 weeks (a cruise, not a race for once) but spent a little time on her when I got back.
I worked out the injector settings in the PowerFC were not correct for nismo 555s, set those to 66% +10ms and added a little air at closed throttle, set the timing (approximately, because it has some weird non 15o cells around idle) and now she starts and idles properly.
She purrs like a kitten (ignore the co2 alarm in the background, I did )
20250518_171052.mp4
Next step, off for run-in, tuning and alignment!