James - I did figure out the relay! I'll have to check cause I forget what pin it was, but there's a + trigger from M4.4 for the relay (unlink almost every other output which is a ground.
Also thanks for the hint on the tach. The M4.4 output does fire the tach, just shows me idling at about 300rpm. Does that seem consistent with that you have?
And yes, it passed! They let the one license plate light out that I missed slide. Registered it yesterday! Took it for a gas up and car wash and it really cleans up nicely.
It drives nicely overall.
I do have a loud rattle coming from the transmission at lower rpms in any gear if I give it more than about 25% throttle, which lasts about 5 seconds and then is quiet through the rest of the rev range. Not at all speed dependent. It's interesting cause it's reminiscent of what I would get at higher RPM's on the old 940 with b234 before I got my driveline angles sorted. Hopefully not just the harmonics of the whiteblock. Going to double check the driveshaft angles this weekend as a first step.
I had all the driveline angles bang on in the old car and had welded the trans mount at the right height for that setup. Maybe needs adjusted now that I've transplanted it. With the diff higher with IRS I had to shim the center carrier up all the way to get the drive angles reasonable. Probably pull the driveshaft this weekend (and drain the tranny fluid - ugh) and make sure it's right.
Other driving impressions, I like it so far with the rear springs and the koni's at +100% rebound - 3 clicks. The front is too bouncy, its an old set of IPD lowering springs with a coil cut. What can I expect. Hoping to use my spare strut housings to make some proper coilovers this winter. What would people suggest? If I have an effective spring rate of 200lb/in in the back, maybe 250 for the front? What length coils are people using without clearance issues?
Final thoughts - The front speakers keep cutting in and out. Too bad, I was hoping to keep the funky stock stereo with external equalizer for a while. Anybody aware of common issues with them? I'm guessing it's a bad transistor in the amp or something of the sort...
I have a slight rattle at idle which I think is the VVT hubs. Anybody have experience if they rattle when not hooked up? Probably time to talk to Aaron at Vast...