Nice write up. 100+ @ Thunderhill should be expected. I think you were experiencing heat soak.
I'd like to get some feedback from the intercooled guys to see if it just adds power or also adds consistency. No sense in making 100 more whp if a hot day and session can rob it away. But making 50 more whp, all the time, in 100+ plus heat would be impressive.
I'd like to think a blown intercooled S65 could be the exception to the "everything FI will heat soak" rule.
Anyone have any links to supercharged M3 track cars?