I believe 38 degrees of timing is pretty high on 92 octane, especially w/the water/meth system not on.
Asumeing the BTM was working correctly it should have 24 degrees of timing. Not real high, but not on the safe side IMO.
Also asumeing you were only running 7 psi of boost pressure.
A guy on here hooked up his wastegate incorrectly & was seeing over 15 psi of boost pressure, 87 octane & no intercooler & high timing, with no BTM.
Engines will tend to knock more when the engine is loaded down the most hence top gear knocking, they can also knock right after each gear shift w/an auto trans.
Tlowe run low 20s in timing I believe & run 12 psi of boost pressure.
What are your intake air temps?
Do you have an intercooler?
Do you see pitting on your piston tops?
I always say, just because you can not audibly hear knocking, does not mean it's not knocking.
Good thing you have a knock sensor, but it does not do a thing to save your engine as far as being able to pull out timing.
By the time you saw some indication of engine knock it sounds like it was already too late.
What kind of ET's did you get out of it?
MBHD
