Originally Posted by s2ktosti
And I'd figure most STI's owners would know that not every state carries above 91 octane in most gas stations. Way to prove me wrong.
91 is perfectly fine, not ideal, but it works fine stock or if tuned for it.
Originally Posted by NoGraffix
According to this log you're peaking boost @ 16.87 at ~4600rpm. If you are still on the stock vf39 then you are peaking boost really late in your powerband and you likely have an exhaust leak, malfunction bcs, or wastegate actuator. There are also some instances of some fairly substantial knock events (the -6 and -5). More concerning is that your DAM started off at 0.75 which means you either had just flashed the map or your ECU has been experiencing knock consistantly and has lowered this value to reduce timing and boost in order to protect your engine.
I agree. And those knocks were in boost and at high load, so they're legit knock, not the false knock that everybody gets when cruising at low loads from time to time.
18 degrees of timing at 2.5 g/rev and 5600 RPM is pretty high, I think the tune probably needs to be mellowed out.