[serialk11r]

Update:

Drove home on -15 deg intake timing today, didn't notice much. Flashed a -25 deg map to see what it would do and the log registered some -25 but mostly -22.5 deg, which may be the limit. I'm going to try -30 next but I'm not sure if it'll listen to me.

The good news is that the MAP values look very high at -22.5 and -25, around the 8psi range, though the data is noisy and I need to log some highway cruising to get clean data. I got rid of some knock compensation and leaned the fueling out a little more, so hopefully that sees results too.

If this doesn't work, I may try bumping the exhaust cam retard up a little more to get some overlap back. I doubt that pumping losses from the exhaust valve opening too late would be a problem.