ok well i got my car to the track for the first time today....
was sooo excited.... and yeah... i hit 90mph and the turbo just cuts out... like 0psi...
it pegs 30psi and shoots me like a rocket till i hit 90mph... and then i basically just roll across the finish line from there....
I was fairly certain i had disabled all the overboost things in HP tuners... but like 9 passes all did the exact same thing.... fight like hell for traction... get traction, get to 90 in a hurry...
then ZZZZZZZZZZZZZZZzzzzzzzzzzzzzzzzzzzzzzz.... take a lil nap while we crawl to the end of the 1/4mile....
Only thing i can think of is some sort of overboost protection, and it just happens to kick in EVERY TIME at about the same point. It is always right at the top of 3rd gear... and by the time i shift into 4th it feels like someone turned the engine off... (engine still on and running, just 0psi. it goes NA for the last 3 seconds and feels like it can hardly hold the speed, let alone accelerate)
here is a graph from the faceplant on my last run of the day.... you can see how it just dies... the selection line is right at the last time it had boost... you can see that i never let off the gas or shifted or anything... just right at the top of 3rd it chokes... and finishes like a wet tissue.
here is another graph from the another pass... almost the exact same thing!!