Here’s a picture for you:
That 1.50 degrees of ST KR in the Max slot represents the largest amount of ST KR observed during the monitoring session. A session which spanned 35 miles and 4 different WOT runs.
One
Point
Five
That’s it!!
The stock setup with this tune (
93 canned, modified with 4-5K RPMs enriched by 1% & retarded 1 degree and 5-7K RPMs enriched by 1.5% & retarded by 1 degree) and gasoline was giving me ST KR spikes of 3 to 5 degrees of ST KR per WOT run.
The stock, heat-soaking, heat-regaining, IAT-non-reading right, air intake setup was sapping me of white of bit of power during WOT due to pulled timing.
That power is no longer being sapped, for the most part, so it’s now (mostly) all there for me at WOT...and it can be felt too!
And for those in the cheap seats, let me say again: I am NOT claiming my aftermarket air intake system has added performance to my 5.7 all of a sudden.
What I am saying is that this new intake system has helped my WOT power output by facilitating a more complete usage of what performance already existed in the engine.
Now if I can just find a replacement laptop to use in datalogging these runs, I’ll once again have visual references to illustrate what I’m talking about

😇