Hello All, Happy New Year!!
I am new to the board and HP Tuners and would like some of the experts to look at this tune file from my 2010 CTSV. I just recently bought this car and the previous owner had some work done by a well known Performance shop in Detroit. The work done consisted of a 2.55 pulley for the super charger, cold air intake, 160 stat, ported snout and re tuning of the transmission. according to the dyno # it made 556rwhp vs 460 stock. I have been driving this car a lot when weather permits however I have noticed a couple things that doesn't seem right.
hitting the rev limiter from 3rd to 4th in sport mode at wide open throttle the first time through the gears out of park.
Also has intermittently cut boost to roughly 8 pounds at wide open throttle during long pulls beyond 3rd gear.
see attached tune and any help would be much appreciated, thanks!
[ATTACH]55578[/ATTACH