Replying to myself... depending your generation, it's either a Billy Idol sneer (i.e. "Dancing with myself") or fapping. Whatever. This is an interesting discovery - especially for all you positive displacement folks.
The vacuum leak fix seems to have fixed the driveability issues, for the most part. But I also uncovered a pretty major flaw inherent in the system (keeping with the '80's theme - a ghost in the machine, if you will). That's The Police, btw. Or I could say, I made a sick discovery - late '90's, the (awesome) band Clutch. But I did not find a lead box in Sassafras Cove. I did do a datalog, though.
After cruising for a bit, and then getting on it, I got that
[email protected][email protected] detonation again. Let's see if you can spot why:
A little further in the same part-throttle pull:
Even further down in the same pull:
Everything looks ok EXCEPT the air charge temps. Yes, they're high; but more importantly, look at the trend - they actually COOL OFF while in boost!
As proof of concept, I offer you another run:
Further into the same run:
This leads me to the conclusion that the blower's generating waaayyyy to much heat cruising around. I think I'm gonna try replacing the bypass with an open elbow - I know I won't get much, if any, boost but the idea is to see if the air charge temps go down. If so, then I need to re-think my bypass. If not, well, then, I'm kinda at a loss.
BTW - my apologizes to those who've subscribed and got a crapload of notifications about this thread - I went through the whole thing and moved all the videos to youtube. As a public service, I'll post them all in one video extravaganza post (when time allows), just so you veterans don't have to sift through the whole thread to find them - I know some of you weren't able to/or didn't want to download the videos. Youtube is much easier.