Yeah, your right......we no nothing about Hondas in this forum. If it was the ignition, don't you think it would do it all the time? Or does his ignition misfire when it gets warm? I had the same problem and it was the car was running rich when it was cold but would lean out once the car and the ECU warmed up. I just turned up my fuel pressure a little bit to compensate for it. Now it doesn't spit and spudder under boost. Just my $0.02.

Also, I have never seen a GSR with 18lbs of boost run safely on stock injectors. They always lean out on the top end at full boost.