Question about boost spike just after throttle lift
I assume this is normal, but just wanted to make sure. Car currently has Cobb AP stage 1+FMIC aggressive (93oct) linear throttle map. Did some logging today and pretty consistently find that my boost is peaking around 16.5-17 psi @ 4200 RPM, then tapering to about 12-13 psi @ 6200 RPM - about what I would expect. Except one or two data points after I lift throttle, at which it spikes to maybe 19-20psi, but only for a single data point. The extremely transient nature of the data there makes me believe it's not even accurately reading pressure, but I thought I would make sure.
Should I be concerned about this? The car has a ER charge pipe with Synapse BOV.
Also, what does the torque data actually tell me, if anything? I assume this is a calculated number, so I'm dubious about it's accuracy (I'm seeing peaks of close to 800 N*m, which is ridiculous, of course).
SOLD 9/22/12 - 09 M3 Sedan | Space Gray/Ext Fox Red/Carbon
Current - 10 135i | Alpine White | Coral Red | M Sport | Premium | Cold | iDrive | 6sp | BMW Performance
04 S2000 | Berlina Black | Black | OEM Front Lip | Pioneer HU | K&N Intake | Rays G-Games 77S 18s