OK. Datalog has been made, and results are more typical than we thought. As I sat in the driver seat, I saw the boost gauge, it stays above 20psi for most of the powerband, than settles near 20psi by 6K. Unfortunately, it's not accurate.
3853 rpm's boost was 18.27 lbs of boost
@ 5057 rpm's it held 17.4 psi all the way to 5300 rpm's.
by 5768 rpm's the boost had dropped to 15.11 psi and falling.
20G Stage 3 on E85: New data:384 hp 411 tq
"Maybe I should just stick to bolt-ons." -Hitler
I don't really want to wrench anymore. I'd rather detail.