Yeah, my MS install was a bitch too... I fried an ignitor tyring to get a tach signal. Fried some other junk before I got it right.
I built and installed the Megasquirt becasue it's so cool and I thought it would be a good learning experience. It was. However, the AEM is still much more capable.
With all this talk about turbo sizing, do you guys reckon a GT3071R would be a good match for a built 1.8? Or would you suggest a GT2871R? Not interested in drag, but it will be for circuit racing so top end is important.